Thursday, October 31, 2019

1. Begin Experiment #31: Third Test Run of the EnviroKlenz With 10 mL of the 1:1 Acetone:Methanol Mixture
  1. This experiment was an exact repeat of Experiment #28. The meter was equilibrated and calibrated as normal. The boiling water was prepared and an evaporating dish containing 10 mL of a 1:1 acetone:methanol solution was floated on it. This process was finished at 09:13. After several minutes I quickly entered the shed to turn on the EnviroKlenz and then left shutting the doors behind me. This was finished at 09:18.
  2. After the atmosphere in the shed was thoroughly mixed I went in to obtain the initial measurement at 09:29. This was recorded. Video File Name = 1 Third Acetone-Methanol Test Initial Measurement 10-31. 
    1. HCHO = 0.971 mg/m3
    2. TVOC = 5.690 mg/m3
    3. PM2.5 = 004  μg/m3
    4. PM1.0 = 003 μg/m3
    5. PM10 = 004 μg/m3
    6. Temperature = 21 oC
    7. Relative % Humidity = 99%
  3. A measurement was taken at 10:43. This was recorded. Video File Name = 2 Third Acetone-Methanol Test 1 Hour 10-31. 
    1. HCHO = 0.513 mg/m3
    2. TVOC = 2.585 mg/m3
    3. PM2.5 =  002 μg/m3
    4. PM1.0 = 001 μg/m3
    5. PM10 = 002 μg/m3
    6. Temperature = 21 oC
    7. Relative % Humidity = 99%
  4. A measurement was taken at 11:44. This was recorded. Video File Name = 3 Third Acetone-Methanol Test 2 Hour 10-31. ​​​​​​​
    1. HCHO = 0.071 mg/m3
    2. TVOC = 0.296 mg/m3
    3. PM2.5 = 003 μg/m3
    4. PM1.0 = 002 μg/m3
    5. PM10 = 003 μg/m3
    6. Temperature = 22 oC
    7. Relative % Humidity = 99%​​​​​​​​​​​​​​

2. Begin Experiment #32: Third Control Test of the 1:1 Acetone-Methanol Mixture

  1. This was a repeat of Experiment #29. Everything was done as before. The meter was equilibrated and calibrated as normal. Evaporating of the mixture was begun at 12:02. The fan was angled such that it blew up against the wall instead of the door again to replicate the air movement produced by the EnviroKlenz as closely as possible. The fan was switched on at 12:07. 
  2. After the atmosphere in the shed was thoroughly mixed I went in to obtain the initial measurement at 12:17. This was recorded. Video File Name = 4 Third Acetone-Methanol Control Test Initial Measurement 10-31. 
    1. HCHO = 0.971 mg/m3
    2. TVOC = 5.738 mg/m3
    3. PM2.5 = 010  μg/m3
    4. PM1.0 = 007 μg/m3
    5. PM10 = 011 μg/m3
    6. Temperature = 22 oC
    7. Relative % Humidity = 99%​​​​​​​
  3. ​​​​​​​Another measurement was taken at 13:30. This was recorded. Video File Name = 5 Third Acetone-Methanol Control Test 1 Hour Measurement 10-31. ​​​​​​​
    1. HCHO = 0.655 mg/m3
    2. TVOC = 3.398 mg/m3
    3. PM2.5 = 014  μg/m3
    4. PM1.0 = 010 μg/m3
    5. PM10 = 016 μg/m3
    6. Temperature = 21 oC
    7. Relative % Humidity = 99%​​​​​​​​​​​​​​
  4. ​​​​​​​Another measurement was taken at 14:52. This was recorded. Video File Name = 6 Third Acetone-Methanol Control Test 2 Hour Measurement 10-31. ​​​​​​​
    1. HCHO = 0.074 mg/m3
    2. TVOC = 0.316 mg/m3
    3. PM2.5 = 009  μg/m3
    4. PM1.0 = 006 μg/m3
    5. PM10 = 010 μg/m3
    6. Temperature = 21 oC
    7. Relative % Humidity = 99%​​​​​​​

Wednesday, October 30, 2019


Equilibrating and Calibrating the Air Quality Meter in the Rain - Keeping it in Fresh Air

1. Begin Experiment #28 - Second Test of EnviroKlenz Using the Acetone-Methanol Mixture

  1. The meter was turned on after equilibrating outside for over an hour and after warming up the calibration was run as normal.
  2. A pot of water was boiled and 10 mL of 1:1 acetone-methanol was added to an evaporating dish. This pot of water was placed in the shed as usual and the dish of solvents was floated on the water surface. The doors were then shut. This process was complete at 10/29/19 23:55.
  3. The shed was entered and the box fan which was angled such that it would blow air up from the floor in the same way as the EnviroKlenz does was turned on at 00:01. The atmosphere in the shed was allowed to equilibrate for a few minutes.
  4. At 00:05 an air quality measurement was taken. This was recorded. Video File Name = 1 Second Acetone-Methanol Test Initial Measurement 10-30
    1. HCHO = 0.964 mg/m3
    2. TVOC = 5.504 mg/m3
    3. PM2.5 =  010 μg/m3
    4. PM1.0 = 007 μg/m3
    5. PM10 = 011 μg/m3
    6. Temperature = 18 oC
    7. Relative % Humidity = 99%
  5. At 01:02 an air quality measurement was taken. This was recorded. Video File Name = 2 Second Acetone-Methanol Test Second Measurement 10-30
    1. HCHO = 0.974 mg/m3
    2. TVOC = 5.610 mg/m3
    3. PM2.5 =  003 μg/m3
    4. PM1.0 = 002 μg/m3
    5. PM10 = 003 μg/m3
    6. Temperature = 18 oC
    7. Relative % Humidity = 99%
  6. At 02:07 an air quality measurement was taken. This was recorded. Video File Name = 3 Second Acetone-Methanol Test Third Measurement 10-30
    1. HCHO = 0.787 mg/m3
    2. TVOC = 4.422 mg/m3
    3. PM2.5 =  003 μg/m3
    4. PM1.0 = 002 μg/m3
    5. PM10 = 003 μg/m3
    6. Temperature = 18 oC
    7. Relative % Humidity = 99%
  7. At 03:11 an air quality measurement was taken. This was recorded. Video File Name = 4 Second Acetone-Methanol Test Fourth Measurement 10-30
    1. HCHO = 0.268 mg/m3
    2. TVOC = 1.211 mg/m3
    3. PM2.5 =  002 μg/m3
    4. PM1.0 = 001 μg/m3
    5. PM10 = 002 μg/m3
    6. Temperature = 18 oC
    7. Relative % Humidity = 99%​​​​​​​
  8. At 04:08 an air quality measurement was taken. This was recorded. Video File Name = 5 Second Acetone-Methanol Test Fifth Measurement 10-30
    1. HCHO = 0.168 mg/m3
    2. TVOC = 0.767 mg/m3
    3. PM2.5 =  002 μg/m3
    4. PM1.0 = 001 μg/m3
    5. PM10 = 002 μg/m3
    6. Temperature = 18 oC
    7. Relative % Humidity = 99%​​​​​​​
  9. ​​​​​​​Opened the doors and began airing out the shed by putting the box fan in the doorway and having it blow air into the shed at ground level to clear out any remaining vapors. The fan was run on its highest setting from ~04:10 to 05:10. Afterwards the doors were left open until 06:30.

2. Begin Experiment #29 - Second Control Test Using the Acetone-Methanol Mixture - Fan Blowing at Wall Instead of Door

  1. The fan was started at 08:59 to make sure the shed was completely cleared out of any trace amounts of VOCs from previous tests. The meter was equilibrated and calibrated as normal. Water was heated as normal and 10 mL of the 1:1 acetone:methanol mixture was prepared. Once the water was boiling it was placed in the shed and the evaporating dish of the acetone-methanol mixture was floated on the surface of the water as before. The shed doors were shut at 09:21 and the VOC mixture was allowed to evaporate as normal until 09:25 when the shed was briefly entered to switch on the fan. 
  2. At 09:36 an air quality measurement was taken. This was recorded. Video File Name = 6 Second Control Test Acetone-Methanol Initial Reading 10-30
    1. HCHO = 0.966 mg/m3
    2. TVOC =  5.660 mg/m3
    3. PM2.5 =  008 μg/m3
    4. PM1.0 = 006 μg/m3
    5. PM10 = 010 μg/m3
    6. Temperature = 19 oC
    7. Relative % Humidity = 99%​​​​​​​​​​​​​​
  3. At 10:31 an air quality measurement was taken. Since the camera was down at the time (I was on hold with the IRS) I held the meter in the air stream and took a photograph of it instead. Image File Name = 7 Second Control Test Acetone-Methanol 1 Hour Reading 10-30
    1. HCHO = 0.998 mg/m3
    2. TVOC =  5.848 mg/m3
    3. PM2.5 =  008 μg/m3
    4. PM1.0 = 006 μg/m3
    5. PM10 = 009 μg/m3
    6. Temperature = 19 oC
    7. Relative % Humidity = 99%​​​​​​​​​​​​​​
  4. At 12:01 an air quality measurement was taken. This was recorded. Video File Name = 8 Second Control Test Acetone-Methanol 2 and One Half Hour Reading 10-30
    1. HCHO = 0.274 mg/m3
    2. TVOC = 1.193 mg/m3
    3. PM2.5 =  006 μg/m3
    4. PM1.0 = 004 μg/m3
    5. PM10 = 006 μg/m3
    6. Temperature = 18 oC
    7. Relative % Humidity = 99%​​​​​​​​​​​​​​
  5. At 13:16 an air quality measurement was taken. This was recorded. Video File Name = 9 Second Control Test Acetone-Methanol 3 and One Half Hour Reading 10-30
    1. HCHO = 0.096 mg/m3
    2. TVOC = 0.410 mg/m3
    3. PM2.5 =  007 μg/m3
    4. PM1.0 = 005 μg/m3
    5. PM10 = 008 μg/m3
    6. Temperature = 18 oC
    7. Relative % Humidity = 99%​​​​​​​

3 Begin Experiment #30 - Testing the EnviroKlenz's Ability to Clear Particulates

  1. The doors of the shed were opened and a box fan was used to ensure the shed was thoroughly aired out. The meter was equilibrated and calibrated in the usual way. I entered the shed, shut the doors behind me, and turned on the box fan. Then using my vaporizer I filled the shed with vapor particulates. After several minutes of doing this I quickly exited the shed, got the freshly calibrated meter, and then went into the shed to take a reading quickly shutting the doors behind me. This process was complete at 14:55. This was recorded. Video File Name =​​​​​​​ 10 Particulates Initial Reading 10-30
    1. HCHO = 0.010 mg/m3
    2. TVOC = 0.042 mg/m3
    3. PM2.5 =  521 μg/m3
    4. PM1.0 = 395 μg/m3
    5. PM10 = 604 μg/m3
    6. Temperature = 18 oC
    7. Relative % Humidity = 99%
  2. ​​​​​​​After obtaining the initial reading the box fan was switched off and the EnviroKlenz was switched on. I then exited the shed while quickly shutting the doors behind me. 
  3. At 15:27 I entered the shed with the freshly calibrated meter to obtain a reading. This was recorded. Video File Name = 11 Particulates First Measurement  10-30​​​​​​​
    1. HCHO = 0.025 mg/m3
    2. TVOC = 0.108 mg/m3
    3. PM2.5 =  2 μg/m3
    4. PM1.0 = 1 μg/m3
    5. PM10 = 2 μg/m3
    6. Temperature = 18 oC
    7. Relative % Humidity = 99%​​​​​​​

Tuesday, October 29, 2019

1. Begin Experiment #27 - Control Testing of Shed Environment

  1. The meter was turned on after equilibrating outside for over an hour and after warming up the calibration was run as normal.
  2. A pot of water was boiled and 10 mL of 1:1 acetone-methanol was added to an evaporating dish. This pot of water was placed in the shed as usual and the dish of solvents was floated on the water surface. The doors were then shut. This process was complete at 11:24.
  3. The shed was entered and the box fan which was angled such that it would blow air up from the floor in the same way as the EnviroKlenz does was turned on at 11:29. The atmosphere in the shed was allowed to equilibrate for a few minutes.
  4. At 11:33 an air quality measurement was taken. This was recorded. Video File Name = 1 Control Test Initial Air Quality Measurement 
    1. HCHO = 0.968 mg/m3
    2. TVOC = 5.672 mg/m3
    3. PM2.5 =  009 μg/m3
    4. PM1.0 = 006 μg/m3
    5. PM10 = 010 μg/m3
    6. Temperature = 19 oC
    7. Relative % Humidity = 81%​​​​​​​
  5. At 12:34 an air quality measurement was taken. This was recorded. Video File Name = 2 Control Test Air Quality Measurement ​​​​​​​1 Hour
    1. HCHO = 0.956 mg/m3
    2. TVOC = 5.649 mg/m3
    3. PM2.5 =  006 μg/m3
    4. PM1.0 = 004 μg/m3
    5. PM10 = 006 μg/m3
    6. Temperature = 20 oC
    7. Relative % Humidity = 78%​​​​​​​
  6. At 13:36 an air quality measurement was taken. This was recorded. Video File Name = 3 Control Test Air Quality Measurement ​​​​​​​2 Hour
    1. HCHO = 0.172 mg/m3
    2. TVOC = 0.751 mg/m3
    3. PM2.5 =  006 μg/m3
    4. PM1.0 = 004 μg/m3
    5. PM10 = 006 μg/m3
    6. Temperature = 20 oC
    7. Relative % Humidity = 81%​​​​​​​
  7. At 14:48 an air quality measurement was taken. This was recorded. Video File Name = 4 Control Test Air Quality Measurement ​​​​​​​3 Hour
    1. HCHO = 0.059 mg/m3
    2. TVOC = 0.246 mg/m3
    3. PM2.5 =  007 μg/m3
    4. PM1.0 = 005 μg/m3
    5. PM10 = 008 μg/m3
    6. Temperature = 21 oC
    7. Relative % Humidity = 80%

2. Prepared a double batch of hydriodic acid. The synthesis protocol was taken from the Grimoire section of this website. 

Monday, October 28, 2019

1. Begin Experiment #26 - Begin Full Testing of the EnviroKlenz Air Purifier

  1. At 04:30 the unit was turned on to equilibrate inside the shed. The door was opened and the unit was allowed to run to further  equilibrate. 
  2. The door to the shed was shut at 05:30 and the unit was allowed to continue to run for two more hours before being shut off at 07:30. 
  3. The meter was turned on and calibration was complete at 08:47.
  4. A pot of water was heated to boiling The benzene was obtained from the shed. Next a video was filmed in which I explained the method I was going to be using to test the air purifying unit. Video File Name = 1 Introduction 10-28
  5. 5 mL of benzene was added to the evaporating dish floating on the pot of very recently boiled water at 09:28.
  6. At 09:33 a reading of the air quality inside the shed was taken. A respirator was used to protect me from the vapors. This was filmed. Video File Name = 2 Benzene Test The readings were as follows:
    1. HCHO = 0.007 mg/m3
    2. TVOC = 0.030 mg/m3
    3. PM2.5 =  003 μg/m3
    4. PM1.0 = 002 μg/m3
    5. PM10 = 003 μg/m3
    6. Temperature = 15
    7. Relative % Humidity = 88%
  7. The meter was removed to fresh air to re-equilibrate. A box fan was set up in the door to the shed to clear out the benzene vapors. It appears that this detector is looking for C-O and C=O bonds since dichloromethane and benzene did not appear to register on the meter. 
  8. Once the air in the shed was cleared the pot of water was re-heated to boiling and 10 mL of a 1:1 mixture of acetone and methanol was added to the evaporating dish floating on the hot water as before. The shed doors were closed and the space was allowed to fill up with the vapors at 10:27. This was recorded. Video File Names = 3 Set Up Methanol-Acetone and 4 Begin Methanol-Acetone. 
  9. At 10:35 the shed was entered just long enough to switch on the unit and then quickly exited with the doors being swiftly closed afterwards. 
  10. After the air in the shed had equilibrated at 10:39 the shed was entered and an air quality reading was taken. This was recorded. Video File Name = 5 Initial Reading Acetone-Methanol  ​​​
    1. HCHO = 0.977 mg/m3
    2. TVOC = 5.578 mg/m3
    3. PM2.5 =  002 μg/m3
    4. PM1.0 = 001 μg/m3
    5. PM10 = 002 μg/m3
    6. Temperature = 21 oC
    7. Relative % Humidity = 69%
  11. Meter switched back on to go through warmup and calibration process at 11:25.
  12. At 11:40 the shed was re-entered and another measurement was taken at 11:44. This was recorded. Video File Name = 6 Acetone-Methanol 1 Hour​​​​​​​
    1. HCHO = 0.931 mg/m3
    2. TVOC = 5.185 mg/m3
    3. PM2.5 =  001 μg/m3
    4. PM1.0 = 000 μg/m3
    5. PM10 = 001 μg/m3
    6. Temperature = 22 oC
    7. Relative % Humidity = 68%
  13. ​​​​​​​To show that the meter does indeed recover once it gets back outside I filmed the reading going down as the meter equilibrated in a stream of fresh air being moved by a fan. Video File Name = 7 Meter Recovery after Acetone-Methanol 1 Hour Test
  14. At 12:50 the shed was entered and a reading was taken. This was recorded. Video File Name = 8 Acetone-Methanol 2 Hour
    1. HCHO = 0.215 mg/m3
    2. TVOC = 0.971 mg/m3
    3. PM2.5 =  001 μg/m3
    4. PM1.0 = 000 μg/m3
    5. PM10 = 001 μg/m3
    6. Temperature = 22 oC
    7. Relative % Humidity = 67%​​​​​​​
  15. At 14:05 the shed was entered and a reading was taken. This was recorded. Video File Name = 9 Acetone-Methanol 3 Hour
    1. HCHO = 0.098 mg/m3
    2. TVOC = 0.404 mg/m3
    3. PM2.5 =  001 μg/m3
    4. PM1.0 = 000 μg/m3
    5. PM10 = 001 μg/m3
    6. Temperature = 23 oC
    7. Relative % Humidity = 64%

Sunday, October 27, 2019

1. Begin Experiment #25 - Atmospheric Testing of the Shed - Trying Different Solvents and Evaporation Methods 

  1. At 10:56 a few drops of acetone were poured into an evaporating dish heated by sitting in boiling water for several minutes. The dish was quickly placed in the shed and the doors were shut. 
  2. At the shed was entered, the door shut, and an air quality measurement was taken in the usual manner. The meter had been equilibrated and calibrated as described on previous days. The reading before the unit was switched on was:
    1. HCHO = 0.023 mg/m3
    2. TVOC = 0.094 mg/m3
    3. PM2.5 =  005 μg/m3
  3. The unit was switched on and the air coming out immediately after was measured. I think this reading reflected the air quality near the floor which makes sense as the acetone vapor is heavier than air.​​​​​​​ This was recorded. Video File Name = 1 Shed Atmospheric Testing - Several Drops Acetone on Hot Dish 10-27
    1. HCHO = 0.028 mg/m3
    2. TVOC = 0.119 mg/m3
    3. PM2.5 =  008 μg/m3
  4. ​​​​​​​The unit was left running and the meter was left sitting on top of it at 11:11. I exited the shed and shut the doors and allowed the unit to run for a short time to see if the levels would go down. 
  5. At 11:26 I entered the shed and recorded the reading on the meter. This was recorded. Video File Name = 2 After Running Unit for About 10 Minutes 10-27 It was:​​​​​​​
    1. HCHO = 0.032 mg/m3
    2. TVOC = 0.132 mg/m3
    3. PM2.5 =  007 μg/m3
  6. ​​​​​​​The shed doors were opened, the unit was shut off, and the shed was aired out using a box fan. The box fan was then moved inside the shed. The evaporating dish was re-heated and ~1 mL of dichloromethane was added to the dish. The dish was quickly taken into the shed, placed in front of the fan, and the doors were shut. This process was complete at 11:37
  7. At 10:40 the shed was entered and an air quality measurement was taken. Almost all of the DCM had evaporated. This was recorded. Video File Name = 3 Test with Dichloromethane 10-27
    1. HCHO = 0.012 mg/m3
    2. TVOC = 0.049 mg/m3
    3. PM2.5 =  013 μg/m3
  8. ​​​​​​​The dish was mildly re-heated and the shed was cleared with a box fan as before. The box fan was moved back into the shed and this time 5 mL of acetone was added to the warm dish. This was placed on the floor by the fan and the fan was tilted upwards to disperse the vapors. This process was completed at 11:47.
  9. At 11:53 the shed was entered and a measurement was taken in the usual way.​​​​​​​ This was recorded. Video File Name = 4 Test With 5 mL Acetone and Fan Dispersal of Vapors 10-27
    1. HCHO = 0.017 mg/m3
    2. TVOC = 0.071 mg/m3
    3. PM2.5 =  005 μg/m3
  10. ​​​​​​​The shed doors were opened after the measurement was taken and the shed was allowed to air out while I was gone at lunch. 
  11. At 12:20 when I came back from lunch several mL of ethyl acetate was placed in a room temp evaporating dish and put into the shed into front of the fan. The light was turned off to prevent accidental ignition of the vapors and destruction of the shed. 
  12.  At 12:27 the meter was placed in the shed and the doors were quickly closed. The meter was given several minutes to equilibrate and then the shed was entered to obtain the measurement at 12:31. This was recorded. Video File Name = 5 Test With Ethyl Acetate​​​​​​​ 10-27
    1. HCHO = 0.036 mg/m3
    2. TVOC = 0.152 mg/m3
    3. PM2.5 =  008 μg/m3
  13. ​​​​​​​After taking the measurement the unit was turned on and the shed doors were closed at 12:33. The unit was allowed to run for a full hour before the atmosphere in the shed was tested again.  The meter was reset and re-calibrated during this time. 
  14. At 13:07 the meter was placed in the shed and the doors were quickly closed. The meter was given several minutes to equilibrate and then the shed was entered to obtain the measurement.. This was recorded. Video File Name = 6 Unit Run for One Half Hour to Clear out EtOAc Vapor 10-27
    1. HCHO = 0.053 mg/m3
    2. TVOC = 0.229 mg/m3
    3. PM2.5 =  002 μg/m3
  15. ​​​​​​​The shed was exited and the doors quickly closed. The unit was left running to see if the much higher reading was a result of vapors that had been residing near the ground being disturbed by the unit running. If so and if the unit is working properly then the levels should decrease measurably over time. This process was begun at 13:10.
  16. At 13:43  the shed was entered and a measurement was taken. This was recorded. Video File Name = 7 Unit Run for Another 25 Minutes
    1. HCHO = 0.023 mg/m3
    2. TVOC = 0.098 mg/m3
    3. PM2.5 =  001 μg/m3
    4. PM1.0 = 000 μg/m3
    5. PM10 = 001 μg/m3
    6. Temperature = 22 oC
    7. Relative % Humidity = 66%
  17. ​​​​​​​The unit was switched off. It was discovered by trying different solvents with the meter that acetonitrile give a very high response (ammonia did not really). So I am re-heating the pot of water in which I will put the evaporating dish. The entire pot will be moved into the shed and several mLs of acetonitrile are added to the dish. The doors to the shed are then closed and the atmosphere is allowed to equilibrate for a period of time with no fans running. This process was completed at 13:58.
  18. At 14:18 the shed was entered and the unit was switched on. The dish of acetonitrile was removed. 
  19. At 14: the shed was entered and a measurement was taken. This was recorded. Video File Name = 8 Evaporation of Acetonitrile With Heat
    1. HCHO = 0.047 mg/m3
    2. TVOC = 0.198 mg/m3
    3. PM2.5 =  010 μg/m3
    4. PM1.0 = 007 μg/m3
    5. PM10 = 011 μg/m3
    6. Temperature = 22 oC
    7. Relative % Humidity = 67%
  20. ​​​​​​​The doors were shut at 14:23 and the unit was allowed to continue running. The shed was entered and a measurement was taken again at​​​​​​​ . This was recorded. Video File Name = 9 Acetonitrile After Running Unit For About 25 Minutes
    1. HCHO = 0.029 mg/m3
    2. TVOC = 0.125 mg/m3
    3. PM2.5 =  003 μg/m3
    4. PM1.0 = 002 μg/m3
    5. PM10 = 003 μg/m3
    6. Temperature = 23 oC
    7. Relative % Humidity = 66%
  21. ​​​​​​​The pot of water was filled almost full and re-heated to boiling. The shed doors were opened and the shed was cleared using a box fan. A mixture of 10 mL of methanol and 18 mL of acetone was prepared. The pot was transferred into the shed and the doors were shut. No fans or other electrical equipment was left running in the shed. This process was complete at 15:06.
  22. ​​​​​​​The shed was entered and a measurement was taken again at​​​​​​​ 15:19. This was not recorded due to an error. However a still image was taken 10-27-19 Acetone-Methanol in Pot of Boiling Water Test.
    1. HCHO = 0.973 mg/m3
    2. TVOC = 5.555 mg/m3
    3. PM2.5 =  0014 μg/m3
    4. PM1.0 = 010 μg/m3
    5. PM10 = 016 μg/m3
    6. Temperature = 24 oC
    7. Relative % Humidity = 60%
  23. ​​​​​​​The unit was switched on at 15:20. It will be checked at several intervals to see how the capture of the VOCs progresses. If this works well then this is the vaporization method that I will use from now on. I will do the first test with this same methanol/acetone mixture and then the second test with benzene. The meter was aired to allow it to equilibrate. The first measurement was conducted at 16:23. ​​​​​​​This was recorded. Video File Name = 10 Methanol-Acetone After 1 Hour Unit Running
    1. HCHO = 0.973 mg/m3
    2. TVOC = 5.701 mg/m3
    3. PM2.5 =  001 μg/m3
    4. PM1.0 = 000 μg/m3
    5. PM10 = 001 μg/m3
    6. Temperature = 22 oC
    7. Relative % Humidity = 69%
  24. ​​​​​​​The shed was exited and the doors were shut. Another reading was taken at 17:10. This was recorded. Video File Name = 11 Methanol-Acetone After 1 Hour 50 Minutes Unit Running​​​​​​​
    1. HCHO = 0.965 mg/m3
    2. TVOC = 5.510 mg/m3
    3. PM2.5 =  001 μg/m3
    4. PM1.0 = 000 μg/m3
    5. PM10 = 001 μg/m3
    6. Temperature = 22 oC
    7. Relative % Humidity = 70%

Saturday, October 26, 2019

1. Begin Experiment #22: Conversion of Diethylamine Hydrochloride to Freebase Diethylamine (Video Project)

ClH-NH(CH3CH2)2 + NaOH → NH(CH3CH2)2 + NaCl + H2O

  1. 20 grams of diethylamine HCl is transferred into a boiling flask containing 40 grams of NaOH dissolved in 60 grams of water.
    1. Molar Mass of Diethylamine HCl = 109.6 grams per mole
    2. 20 grams of Diethylamine HCl = 0.182481751 moles
    3. Molar Mass of NaOH = 39.997 grams per mole
    4. 0.182481751 moles NaOH = 7.298722 grams lost to reaction
    5. 0.182481751 moles water = 3.28 grams water
    6. Amount of NaOH that will remain unreacted = 32.7 grams
    7. 32.7 grams NaOH in 63.28 grams water = 34.1% NaOH
    8. 0.182481751 moles NaCl = 10.66 grams 
  2. The flask was placed in ice water to chill at 11:36. It was removed from the ice water at 11:58.
  3. The flask is connected to a standard distillation train and the solution is gently warmed. 
  4. Gas began to be given off as soon as the mixture began to warm towards room temp. Stirring was all that was required to generate most of the gas. 
  5. Once no more DEA came over the solution was warmed with stirring and a few more mL of DEA were recovered.
    1. Foaming was the biggest problem with this reaction. In the future use a flask much larger than the volume of NaOH solution used in order to minimize the impact of this problem. 

2. Begin Experiment #23: Atmospheric Testing of the Shed With Passive Ventilation Active - 5 mL of Acetone (Product Testing Project)

  1. Measured out 5 mL of acetone and poured it into an evaporating dish. 
  2. Placed the dish in the shed on a shelf about chest height and closed the doors at 08:40. The meter was left on the bench it was calibrated on far away from the canopy where the acetone was measured or the shed where it was placed. 
    1. Temperature = 17 oC
    2. Relative Humidity = 83%
  3. At 08:57 the meter was taken into the shed and the door was closed. I walked around for several minutes to get an accurate reading. This was recorded. Video File Name = Passive Ventilation System Working - 5 mL Acetone
    1. HCHO = 0.008 mg/m3
    2. TVOC = 0.033 mg/m3
    3. PM2.5 = 004 μg/m3
    4. PM1.0 = 003 μg/m3
    5. PM10 = 004 μg/m3

3. Begin Experiment #23: Atmospheric Testing of the Shed With Passive Ventilation Shut down Base Line

  1. Using dirt dug up out of the yard I closed up the openings at the base of the shed with a few inches of soil. The process was completed at 09:45.
  2. The doors were shut at 10:00 and the atmosphere inside the shed was allowed to equilibrate for an hour to obtain a new base level with the ventilation shut down. 
  3. The meter was turned on at 10:55. The calibration process was begun at 11:06.
  4. The shed was opened, entered, and closed quickly at 11:13 and I walked around for a few minutes to allow the meter to equilibrate. This was recorded. Video File Name = Passive Ventilation Shut Down 1 Hour Base Line
    1. HCHO = 0.025 mg/m3
    2. TVOC = 0.103 mg/m3
    3. PM2.5 = 003 μg/m3
    4. PM1.0 = 002 μg/m3
    5. PM10 = 003 μg/m3

4. Begin Experiment #24: Atmospheric Testing of the Shed With Passive Ventilation Shut Down - 5 mL of Acetone

  1. As before 5 mL of acetone was measured out and put into an evaporating dish. The dish was placed inside the shed and the doors were closed at 10:40.
  2. The meter was recharged and then turned back on at 11:53.
    1. ​​​​​​​Temperature = 21 oC
    2. Relative Humidity = 70%
  3. ​​​​​​​Calibration was begun at 12:04. 
  4. The shed was opened, entered, and closed quickly at 12:17 and I walked around for a few minutes to allow the meter to equilibrate. This was recorded. Video File Name = Passive Ventilation System Shut Down - 5 mL Acetone
    1. HCHO = 0.024 mg/m3
    2. TVOC = 0.099 mg/m3
    3. PM2.5 = 003 μg/m3
    4. PM1.0 = 002 μg/m3
    5. PM10 = 003 μg/m3
  5. ​​​​​​​Begin equilibrating the unit to start testing tomorrow at 13:18. End at 15:30.

Friday, October 25, 2019

1. Begin Experiment #21: Atmospheric Testing of the Shed With Passive Ventilation Active - Base Level

  1. Closed shed doors at 12:46 and allowed the atmosphere in the shed to equilibrate for an hour.  
  2. At 13:20 the air quality meter was switched on and placed on the bench outside the canopy to warm up.
  3. At 13:32 the calibration process was begun. The meter was not moved from the benchtop during the calibration process. 
  4. At 13:37 the calibration process ended. 
  5. The shed doors were opened and the meter was taken into the shed. The doors were closed afterwards. I then walked around the shed to find the base level reading of the air quality in the shed with the passive ventilation system active. 
  6. The reading obtained was as follows:
    1. HCHO = 0.012 mg/m3
    2. TVOC = 0.051 mg/m3
    3. PM2.5 = 002 μg/m3
    4. PM1.0 = 001 μg/m3
    5. PM 10 = 002 μg/m3
Meter Calibration Conditions 10-25-19

Thursday, October 17, 2019

1. Converted all lanthanide halide and lanthanide nitrate samples in the Small Bottles collection to their hydroxides. All of the lanthanide salts were combined with a small amount of water and about an equal volume of concentrated HCl. The mixture was stirred until all of the lanthanide halide/nitrate (and lanthanide oxyhalide'/oxynitrate) had dissolved. Then excess of concentrated aqueous NaOH was added to each solution with stirring until the solution was very alkaline. Each lanthanide hydroxide was filtered off using gravity filtration and they were put into desiccators with 3A molecular sieves to dry.

Tuesday, October 15, 2019

1. Experiment #20: Synthesis of Antimony Triiodide from Antimony Metal

  1. Combine in a 250 mL boiling flask 100 mL of toluene, 4.70 grams of iodine, and 2.70 grams of ground antimony.
  2. Heat and stirring was turned on and the mixture was allowed to reflux for about an hour and a half. 
  3. When the solution was removed from the heat it was still an opaque yellow-orange.
    1. It was discovered on filtration that a lot of the antimony had not reacted. In the future it would be best to allow this to reflux for 3 hours at least to react completely. 
  4. The solution was filtered through a filter paper into a flask which was immediately sealed with a stopper and placed in a water bath to cool. 
  5. After about 20 minutes the red SbI3 crystals were scraped off the sides of the flask using a metal scooper,
  6. The crystals were recovered by filtration through a filter paper. 
  7. The crystals were rinsed with 3 small portions of chloroform to remove all of the toluene. 
  8. The damp crystals were dried with a heat gun on low until only mildly clumpy. Drying was stopped at this point to minimize dust. 
  9. The still slightly damp crystals were transferred to a scintillation vial, capped, labeled, and stored in the inventory. 

Saturday, October 12, 2019

1. Continue Experiment #19: Synthesis of Praseodymium(III,IV) Oxide from Praseodymium Metal & Praseodymium Trichloride Hexahydrate

  1. Mass of 100 mL crucible = 57.53 grams
  2. Mass of praseodymium oxalate C6O12Pr2 = 26.17 grams
  3. Mass of praseodymium oxalate + crucible = 83.70
  4. Mass of praseodymium(III,IV) oxide + crucible = 69.63
  5. Mass difference = 14.07 grams
  6. Mass of praseodymium(III,IV) oxide Pr6O11 = 12.10 grams
  7. Molar mass of praseodymium oxalate = 545.87 grams per mole
  8. Molar mass of praseodymium(III,IV) oxide Pr61011 = 1021.44 grams per mole
  9. Moles of praseodymium oxalate in 26.17 grams C6O12Pr2 = 0.047941moles
  10. Moles of praseodymium (III,IV) oxide Pr6O11 = 0.011846 moles

Friday, October 11, 2019

1. Begin Experiment #19: Synthesis of Praseodymium(III,IV) Oxide from Praseodymium Metal & Praseodymium Trichloride Hexahydrate

  1. This experiment was done the same way as Experiment #18. 10 grams exactly of of Pr metal along with several grams of Pr(III)Cl3 that I made previously was dissolved in concentrated hydrochloric acid. The final volume of the Pr(III)Cl3 is about 50 mL.
    1. Atomic weight of Pr =140.907 amu.
      1. 10 grams Pr = 0.0709687950 moles.
    2. Pr(III)Cl3 = 247.24 grams/mole.
      1. 10 grams of Pr(III)Cl3 = 0.04044652 moles.
    3. Total moles of Pr is less than 0.111415324 moles.
    4. Molar mass of oxalic acid = 90.034 grams per mole (dihydrate is 126.065 grams per mole). 
    5. Mass of 0.111415324 moles of oxalic acid is 10.0311 grams. Mass of 0.111415324 moles of oxalic acid dihydrate is 14.046 grams. 
  2. Next 14.50 grams of oxalic acid was dissolved in about 75 mL of warm water. 
  3. The oxalic acid solution was combined with the praseodymium(III) chloride solution and praseodymium oxalate precipitated. This was vacuum filtered off and suction dried. 
  4. The damp solid Pr oxalate was scraped out onto a plate and put into the desiccator to dry over some 3A molecular sieves. 
  5. The filtrate was made alkaline with sodium hydroxide and praseodymium(III) hydroxide precipitated out of solution. 
  6. The Pr(III)(OH)3 was filtered off, pressed as dry as possible between paper towels, and then it was put into the desiccator with the praseodymium oxalate.  

Thursday, October 10, 2019

1. Experiment #18: Formation of Cerium(III) Oxalate Hydrate from Cerium Metal Continued

The cerium oxalate was transferred to a 100 mL porcelain crucible and heated with constant stirring. The cerium oxalate broke down into a brilliant orange powder where it touched the air and a dark gray powder where it did not. Constant stirring was needed to get all of the cerium oxalate to fully pyrolyze to cerium dioxide. In the end approximately 18.9 grams of very pure cerium dioxide was produced. 

Sunday, October 4, 2019

1. Experiment #18: Formation of Cerium(III) Oxalate Hydrate from Cerium Metal

Two days ago I reacted all of the cerium metal I had with conc. hardware store HCl in order to form greenish-yellow-but-mostly-yellowish crude cerium(III) chloride. However, I was unable to purify them after crystallization. Washing the crystal sludge with concentrated HCl rendered some of the yellowish-green crystals white but not nearly all of them. So I dissolved all of the solid back into water using NaOH raised the pH to about 4. An unknown gel-like solid precipitated out and so a small amount of conc. HCl was added; just enough to render everything soluble again. The yellowish solution was reacted it with a solution of oxalic acid to precipitate out cerium(III) oxalate hydrate. The precipitate was filtered off, vacuum dried, and the filter cake broken up on a plate and put into the desiccator to dry over 3A molecular sieves. The filtrate was very cloudy so I looked up the solubility of cerous oxalate and to my surprise it was slightly soluble. I transferred the cloudy filtrate to a beaker and heated it with stirring. The cloudiness cleared up rapidly on heating and the solution became transparent. The solution was heated to reduce the volume. As the solution reduced it took on more of a clear yellowish tinge. The yellow color intensified as the volume was reduced. At about 150 mL cerium oxalate began to crystallize out. The solution was chilled on ice and the cerium oxalate crystals were filtered out. These were dried over 3A molecular sieves as well and then combined with the other batch.

Saturday, October 4, 2019

1. Begin Experiment #17: Product Testing of the EnviroKlenz Mobile UV Model Air Purifier

  1. Unboxing video shot at: 11:15
  2. Begin two day equilibration at: 11:00

Friday, October 4, 2019

1. Begin Experiment #15: Solubility Testing of Cupric Anthranilate by Evaporation Testing

  1. Acetonitrile = Very Slightly Soluble
  2. Acetone = Slightly Soluble 
  3. Chloroform = Slightly Soluble
  4. Ethanol = Very Slightly Soluble
  5. Xylene = Virtually Insoluble
    1. Addendum 10/6/19: Cupric Anthranilate was discovered to be readily soluble in both dilute and concentrated HCl (conc HCl reacts with cupric anthranilate to form a yellowish color on fritted glass). One remarkable thing is that even in dilute HCl cupric anthranilate was completely soluble and the solution had almost no color to it at all! Even the more concentrated solutions I saw that had any color appeared more yellowish than blueish/greenish which was totally unexpected. 

2. Prepared a solution of potassium anthranilate by dissolving 1 gram of anthranilic acid (137.138 grams per mole, 1 gram =  0.0072919 moles) in 20 mL of water with 0.409 grams (0.0072919 moles) of potassium hydroxide. 

Begin Experiment 16: Cerium(III) Chloride from Cerium Metal and Concentrated HCl

  1. Approximately 10 grams of cerium metal was dissolved into ~30 mL of concentrated HCl.
  2. Concentrated HCl was added as needed to maintain the volume of the acid. 
  3. About halfway through the reaction heating was turned on high in order to facilitate evaporation of the HCl. 
  4. Once all of the metal had dissolved the beaker was covered with plastic wrap and put in the refrigerator to crystallize overnight. 

Thursday, October 3, 2019

1. Continue Experiment #14: Synthesis of indole-3-acetaldehyde (a.k.a. tryptaldehyde) by oxidation of tryptophan by hexacyanoferrate(III) (catalyzed normal stoichiometric mixture taken from mechanism) Trp + 2 HCF3- + 5 OH- + Cu2+ → 2 I-3-A + 2 HCF4- + CO2 + NH3 + H2O

  1. The toluene extract from the reaction on October 1, 2019 was transferred to an Erlenmeyer flask and combined with 2 mL of Brady's Reagent. Create as homogenous a mixture as possible.
  2. Transfer the flask to a boiling water bath and allow it to heat for ~10 minutes. 
  3. No visible reaction.
  4. A Jones Reagent test was carried out. The color change was very slight and it took almost a tall test tube full of solution to elicit any change at all. As before the amount of product produced was extremely small. FAIL!
    1. Product failed to extract?
    2. Product not stable in toluene?
    3. Product not oxidizing for long enough?
    4. Extract product as it forms in excess toluene/xylene/benzene/chloroform?
      1. Product did seem reasonably soluble in chloroform as seen in Experiment #12.

Wednesday, October 2, 2019

1. Begin Experiment #15: Oxidation of toluene to benzaldehyde using barium ruthenate dissolved in dichloromethane in combination with glacial acetic acid and a ferric chloride catalyst. 

  1. 0.4 mmol of barium ruthenate (286.3952 grams per mole; 0.0004 moles = 0.1145 grams) was suspended in 10 mL of dichloromethane. 
  2. 5 mL of glacial acetic acid (~ 0.08742 moles) was added to the suspension. The mixture was stirred until it turned dark green in color. 
  3. 0.002 moles of crushed ferric chloride (270.295 grams per mole; 0.002 moles = 0.540‬ grams) was added to the mixture and stirred until it dissolved. 
  4. 6 mL of toluene was added to the mixture with stirring. 
  5. In 20 minutes the reaction was stopped by the slow addition of a solution of 4.90 grams of KOH in 20 mL H2O.
  6. The mixture was thoroughly stirred and then decanted into plastic tubes and centrifuged at 4000 rpm for ~10 minutes.
  7. Two small portions of the low volume organic layer were obtained and transferred to individual test tubes.
  8. In one test tube a small amount of Jones Reagent was added. This turned blue-green almost immediately when stirred indicating the reagent had been reduced. There was nothing in the spun down organic layer that could have reduced that reagent so I decided this was a positive test.
  9. To the second portion of the organic layer was added about 1 mL of Brady's Reagent. The toluene solution of benzaldehyde turned orange and did not crystallize. 
  10. I then heated the tube with the 2,4-DNPH in a hot water bath and red crystals precipitated out of the solution. This was a positive test for benzaldehyde. SUCCESS!

Tuesday, October 1, 2019

1. Begin Experiment #14: Synthesis of indole-3-acetaldehyde (a.k.a. tryptaldehyde) by oxidation of tryptophan by hexacyanoferrate(III) (catalyzed normal stoichiometric mixture taken from mechanism) Trp + 2 HCF3- + 5 OH- + Cu2+ → 2 I-3-A + 2 HCF4- + CO2 + NH3 + H2O

  1. Prepare a solution of 1 gram of tryptophan (204.229 grams per mole, 1 gram = 0.004896 moles) with one molar equivalent of 0.275 grams of KOH (56.1056 grams per mole; 0.004896 moles) in 30 mL of water. 
  2. Prepare a tetrahydroxidocopper(II) complex by dissolving 1.22 grams copper sulfate pentahydrate (249.68 grams per mole; 0.004896 moles) in 20 mL of water and then combining that with 1.098 grams of KOH (0.004896 x 4 moles) in ~10 mL of water. 
  3. Combine the solution of potassium tryptophate with the suspension of tetrahydroxidocopper(II) complex. Stir to combine thoroughly.
  4. Add 3.22 grams of potassium ferricyanide (329.24 grams per mole; 0.004896 x 2 moles) to the mixture with stirring. 
  5. After 30 minutes the solution was transferred to a separatory funnel and was extracted with three 30 mL portions of toluene.
  6. The toluene extracts were combined and dried over anhydrous magnesium sulfate. 

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