[biofuel] acrolein

2002-05-08 Thread Christian
I«m a bit concerned with the glycerin/acrolein topic (glycerin thermally decomposes into this dangerous substance). I found little on this topic (Keith and Todd) in the archives. From a not-so-thorough search in google, acrolein forms when heating Glycerol to 290¼C, but that happens when the

Re: [biofuel] Acrolein and Black Goo

2002-05-08 Thread Ken Provost
Christian writes: I«m a bit concerned with the glycerin/acrolein topic (glycerin thermally decomposes into this dangerous substance). I thought acrolein was a gas. Yellow liquid, boils at 53 C -- long gone if you boil off the methanol. I am also concerned with the fact some of you

[biofuel] Acrolein 2

2002-05-07 Thread Christian
Regarding the message I just sent: At: http://www.inchem.org/documents/icsc/icsc/eics0624.htm (A Chemical safety data sheet) it sais the glycerin decomposes below it«s boiling point at 171¼C. (For pure glyc). Christian [Non-text portions of this message have been removed]

[biofuel] Acrolein («twas illegible)

2002-05-07 Thread Christian
I«m a bit concerned with the glycerin/acrolein topic (glycerin thermally decomposes into this dangerous substance). I found little on this topic (Keith and Todd) in the archives. From a not-so-thorough search in google, acrolein forms when heating Glycerol to 290¼C, but that happens when the

[biofuel] acrolein--propenol as a substitute for methanol?

2001-07-25 Thread gjkimlin
Acrolein is the alcohol of propene (ie propanol with a carbon double bond) and is the breakdown product of glycerol as you distill it at 290C. Addition of acid(Conc. H2SO4) to glycerol may accellerate the break-down. The acrolein can be retrieved with the same reflux still used to reclaim

[biofuel] Acrolein (List of Diesel Products of Combustion)

2001-05-24 Thread Ed Beggs
Acrolein was mentioned in an earlier post as well, and I wanted to find a list of diesel products of combustion. Here is one that may be of interest. http://www.osha-slc.gov/SLTC/dieselexhaust/chemical.html Ed B. From: Dana Linscott [EMAIL PROTECTED] Reply-To: biofuel@yahoogroups.com

[biofuel] Acrolein

2001-05-07 Thread F. Marc de Piolenc
Message: 1 Date: Sat, 5 May 2001 22:22:25 -0400 From: Appal Energy [EMAIL PROTECTED] Subject: Acrolein = Black Death? Relative to acrolein production from glycerin, Appal's resident wise man (no, not me, the chemist) had the following to say after reading the post immediately

[biofuel] Acrolein = Black Death?

2001-05-06 Thread Appal Energy
Yo Dee Ho Yo Dee Ho!!! Relative to acrolein production from glycerin, Appal's resident wise man (no, not me, the chemist) had the following to say after reading the post immediately below. Seems that the standard MSDS and the EPA hazard sheet both go pretty easy on acrolein. -