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How to achieve very low concentration (1 ppm or so) of Formaldehyde ?
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+ Formaldehyde
+ Vapor pressure
+ Gas flow
+ Volatile organic compounds
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Alan Bustany
How to achieve very low concentration (1 ppm or so) of Formaldehyde ?
You can try the permeation tube loaded with trioxymethylene. The tube can be purchased, and the direction will tell you the gas flow rate and temperature.
You can try the permeation tube loaded with trioxymethylene. The tube can be purchased, and the direction will tell you the gas flow rate and temperature.
Dear Bibhas, you can also heat solid paraformaldehyde in a glass tube flushed with nitrogen. The heating temperature as well as the nitrogen flow rate will determine the formaldehyde concentration in the gas phase. You can also dilute the flow after the glass tube for further dilution. Best, Sascha
Dear Bibhas, you can also heat solid paraformaldehyde in a glass tube flushed with nitrogen. The heating temperature as well as the nitrogen flow rate will determine the formaldehyde concentration in the gas phase. You can also dilute the flow after the glass tube for further dilution. Best, Sascha
You can try the permeation tube loaded with trioxymethylene. The tube can be purchased, and the direction will tell you the gas flow rate and temperature.
You can try the permeation tube loaded with trioxymethylene. The tube can be purchased, and the direction will tell you the gas flow rate and temperature.
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Thank you sir.
Thank you sir.
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Dear Bibhas,
you can also heat solid paraformaldehyde in a glass tube flushed with nitrogen. The heating temperature as well as the nitrogen flow rate will determine the formaldehyde concentration in the gas phase. You can also dilute the flow after the glass tube for further dilution.
Best,
Sascha
Dear Bibhas,
you can also heat solid paraformaldehyde in a glass tube flushed with nitrogen. The heating temperature as well as the nitrogen flow rate will determine the formaldehyde concentration in the gas phase. You can also dilute the flow after the glass tube for further dilution.
Best,
Sascha
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While considering heating a weighted amount of solid paraformaldehyde to vaporize it ― depolymerized to formaldehyde ― into the recipient atmosphere, the following paper may help: http://www.sciencedirect.com/science/article/pii/S0040603115001549
While considering heating a weighted amount of solid paraformaldehyde to vaporize it ― depolymerized to formaldehyde ― into the recipient atmosphere, the following paper may help: http://www.sciencedirect.com/science/article/pii/S0040603115001549
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