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
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
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]
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
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
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
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
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.
-