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Use in Paintballs

Polyethylene Glycol is the main ingredient in paintballs, not Propylene Glycol. http://www.severepaintball.com/pdf/msds.pdf (link to a pdf for the MSDS for a certain brand of paintballs) http://paintball.about.com/b/a/079179.htm (about.com article that mentions polyethylene glycol as the main ingredient)

Recent stories relating to -e-cigarettes

Citation 25 relates to deaths suspected to have been related to vaping THC derivatives - no mention at all of link to Propylene Glycol — Preceding unsigned comment added by 194.168.131.146 (talk) 16:56, 10 October 2019 (UTC)[reply]

as energy source

Can the L-isomer (synonym of S-isomer?) be used as main energy souse in food instead of glucose to produce effect similar to that of keto-diet but without its negative sides? 79.181.84.239 (talk) 14:37, 12 June 2021 (UTC)[reply]

a) this is not a discussion forum, it's about a Wikipedia entry

b) the L-isomer is not a synonym of the S-isomer, they are isomers, not synonyms, but this is completely irrelevant

c) No. While you can get your calories from propylene glycol, foregoing sugar and fats, it is not recommended because in these amounts it would not be healthy any more. And more relevant to your question, it will not produce the same effect as to that of a keto-diet, because propylene glycol is metabolized via puryvate and lactate, which are not so called "ketone bodies". It is even used in cows to intervene when they enter a state of ketosis because it is considered to be unhealthy for them. Wolfgang.brehm (talk) 10:00, 29 December 2022 (UTC)[reply]

Acetaminophen aka Paracetamol in Cows

As a chemist I was surprised to read that cows produce paracetamol in significant quantities. Anything is possible, but better check the sources. The source indeed gives the quote, but cites another source, which does not substantiate this claim at all. The primary source shows that giving propylene glycol to hungry cows reduces their acetate, but nowhere do they mention acetaminophen. Perhaps, and this is just an educated guess, the secondary source meant to write acetoacetate or acetone, not acetaminophen, because these are common ketone bodies. In any way, the extraordinary claim that cows supposedly produce paracetamol would require extraordinary evidence. This is not substantiated by any evidence at all in my assessment. Do you agree to remove this quote and replace it with a more trivial statement as in reducing ketosis measured by acetate in their blood?

Wolfgang.brehm (talk) Wolfgang.brehm (talk) 16:34, 28 December 2022 (UTC)[reply]

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 == Use in Paintballs ==
 Polyethylene Glycol is the main ingredient in paintballs, not Propylene Glycol.
 http://www.severepaintball.com/pdf/msds.pdf (link to a pdf for the MSDS for a certain brand of paintballs)
 http://paintball.about.com/b/a/079179.htm  (about.com article that mentions polyethylene glycol as the main ingredient)
+== Recent stories relating to -e-cigarettes ==
-== Duplicate reference ==
-The last paragraph of "Humans" and the last paragraph of "Allergic reaction" refer to the same Swedish study. Footnote 37 is a duplicate of footnote 29. --[[Special:Contributions/88.73.3.182|88.73.3.182]] ([[User talk:88.73.3.182|talk]]) 15:51, 29 January 2012 (UTC)
-== Confusion with Ethylene Glycol ==
+Citation 25 relates to deaths suspected to have been related to vaping THC derivatives - no mention at all of link to Propylene Glycol  <!-- Template:Unsigned IP --><small class="autosigned">—&nbsp;Preceding [[Wikipedia:Signatures|unsigned]] comment added by [[Special:Contributions/194.168.131.146|194.168.131.146]] ([[User talk:194.168.131.146#top|talk]]) 16:56, 10 October 2019 (UTC)</small> <!--Autosigned by SineBot-->
-I added the Template:Distinguish for [[Ethylene Glycol]].  As many people confuse the two when citing human toxicity.  For example Austin News called [[Electronic cigarette]] poisonous as "They use the same ingredient as car antifreeze". When in fact car antifreeze uses Ethylene Glycol and ecigarretes use Propylene Glycol.  [[User:CharlesDayton|<font face="Segoe Print" color="Blue">Charles</font><font face="Segoe Print" color="Green"> Dayton</font>]] [[User_talk:CharlesDayton|<font face="Times New Roman" color="Blue">(Talk)</font>]] 17:01, 11 March 2012 (UTC)
+== as energy source ==
+Can the L-isomer (synonym of S-isomer?) be used as main energy souse in food instead of glucose to produce effect similar to that of keto-diet but without its negative sides?
-Actually car antifreeze could be either which is actually why I am here.  I wish to have both the boiling points and freezing points in this article.
+[[Special:Contributions/79.181.84.239|79.181.84.239]] ([[User talk:79.181.84.239|talk]]) 14:37, 12 June 2021 (UTC)
+:a) this is not a discussion forum, it's about a Wikipedia entry
-(article.http://www.acustrip.com/specs/2-wayafauto.html)
+:b) the L-isomer is not a synonym of the S-isomer, they are isomers, not synonyms, but this is completely irrelevant
+:c) No. While you can get your calories from propylene glycol, foregoing sugar and fats, it is not recommended because in these amounts it would not be healthy any more. And more relevant to your question, it will not produce the same effect as to that of a keto-diet, because propylene glycol is metabolized via puryvate and lactate, which are not so called "ketone bodies". It is even used in cows to intervene when they enter a state of ketosis because it is considered to be unhealthy for them. [[User:Wolfgang.brehm|Wolfgang.brehm]] ([[User talk:Wolfgang.brehm|talk]]) 10:00, 29 December 2022 (UTC)
+== Acetaminophen aka Paracetamol in Cows ==
-Would this meet wiki standards for authoritative?  it does have both freeze and boil for propylene glycol used as a coolant.  Propylene glycol seems to be most effective at 60% concentration as opposed to70% for ethylene glycol.  propylene glycol also seems to have a slightly narrower range of protective temperatures.
-I understand that it is not so good to mix them and some cars that require one will over heat with the other, but have no good sources for this.
-[[User:Glennndavis|Glennndavis]] ([[User talk:Glennndavis|talk]]) 16:32, 2 May 2012 (UTC) Glenn
+As a chemist I was surprised to read that cows produce paracetamol in significant quantities. Anything is possible, but better check the sources. The source indeed gives the quote, but cites another source, which does not substantiate this claim at all. The [https://www.journalofdairyscience.org/article/S0022-0302(94)77306-9/pdf primary source] shows that giving propylene glycol to hungry cows reduces their acetate, but nowhere do they mention acetaminophen. Perhaps, and this is just an educated guess, the secondary source meant to write acetoacetate or acetone, not acetaminophen, because these are common ketone bodies. In any way, the extraordinary claim that cows supposedly produce paracetamol would require extraordinary evidence. This is not substantiated by any evidence at all in my assessment. Do you agree to remove this quote and replace it with a more trivial statement as in reducing ketosis measured by acetate in their blood?
-== Use in E-Cigarettes ==
+[[User:Wolfgang.brehm|Wolfgang.brehm]] ([[User talk:Wolfgang.brehm|talk]]) [[User:Wolfgang.brehm|Wolfgang.brehm]] ([[User talk:Wolfgang.brehm|talk]]) 16:34, 28 December 2022 (UTC)
-Propylene Glycol is used as a solvent for Nicotine in almost all E-Cigarettes, although it is often mixed with normal (vegetable based) glycerine in various proportions to reduce its unpleasant taste and also because vegetable based glycerine is considered too viscous to use alone, Propylene Glycol is much less viscous and thins the mixture down to a more manageable viscosity. Since E-Cigarettes are becoming more and more popular especially in the last year, I feel it may be worthwhile adding it as a valid application. [[Special:Contributions/86.149.118.241|86.149.118.241]] ([[User talk:86.149.118.241|talk]]) 18:17, 17 January 2013 (UTC)
-: I agree, and will do so. [[PEG 400]] already mentions the use of that chemical in e-juice, and PG is much more widely used than PEG 400. [[User:Quaestor23|Quaestor23]] ([[User talk:Quaestor23|talk]]) 19:57, 22 January 2013 (UTC)