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Dear Ralph:
I would highly recommend conducting a Hazard assessment (What if analysis method; ACS) for these gases. Developing a valuable SOP depends how the chemical or gas is used for a manipulation or reaction.
These gases poses significant risk due to auto-polymerization and other chemical properties.
Chloroprene is heavier than air. Therefore, distant ignition is possible.
Also, theses cylinders should be equipped with a back-flow preventive devices when in use, because sucking back into cylinder will cause explosion/rupture.
Good luck.
Tilak
-----Original Message-----
From: ACS Division of Chemical Health and Safety [mailto:DCHAS-L**At_Symbol_Here**PRINCETON.EDU] On Behalf Of Secretary, ACS Division of Chemical Health and Safety
Sent: Monday, April 10, 2017 12:29 PM
To: DCHAS-L**At_Symbol_Here**PRINCETON.EDU
Subject: [DCHAS-L] Gases that may Autopolymerize
Can anyone suggest a more current information with regard to the question below? There have been no updates in JCHAS since the 1996 article.
Thanks for any help with this.
- Ralph
A colleague writes:
We reference your ‰??Classes of Peroxide-forming chemicals" (Source: Kelly, Richard J., Chemical Health & Safety, American Chemical Society, 1996, Sept, 28-36) in our SOP. Do you have an updated version of this or similar document?
I need to find more information about gases that may autopolymerize (quote from document is below) or otherwise become hazardous. When stored as a gas, these may autopolymerize as a result of peroxide accumulation:
- Butadiene
- Chloroprene
- Tetrafluoroethylene
I am writing an SOP about this.
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This e-mail is from DCHAS-L, the e-mail list of the ACS Division of Chemical Health and Safety.
For more information about the list, contact the Divisional secretary at secretary**At_Symbol_Here**dchas.org
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