Sciencemadness Discussion Board

Phenolic antioxidants

Paddywhacker - 14-9-2009 at 14:13

BHA and TBHQ look like they might be synthetically-interesting starting materials for the amateur chemist. They are used as antioxidants in the food and cosmetics industry.

But all my attempts to track down a supplier of kilogram quantities have run aground on Hong-Kong based search engines.

Does anybody know of an industrial-grade supplier of 1 kg quantity?

kclo4 - 14-9-2009 at 17:05

what might they be used for?

ammonium isocyanate - 14-9-2009 at 18:53

I have some interest in these compounds. They (at least TBHQ) are added to cooking oils used by resteraunts. And we at the biofuels lab on campus think it's probably what makes our waste glycerin red, although I'm about to (a few days) start testing to be sure. If the reseult are interesting I'll post 'em, as it could be cool to see what derivatives form under conditions of heat + KOH + methanol. I'm thinking the hydroxyls would be replaced with methoxy groups, but maybe some other junk would occur given the conditions. Heck, it could form an ester with the fatty acids.

Not sure what exactly one would use them for in home chemistry though.

UnintentionalChaos - 14-9-2009 at 19:29

Quote: Originally posted by Paddywhacker  
BHA and TBHQ look like they might be synthetically-interesting starting materials for the amateur chemist. They are used as antioxidants in the food and cosmetics industry.

But all my attempts to track down a supplier of kilogram quantities have run aground on Hong-Kong based search engines.

Does anybody know of an industrial-grade supplier of 1 kg quantity?


Lemme guess. 2,5-dimethoxy-4-tert-butylphenethylamine.

Did I guess right? No? Perhaps the amphetamine or methamphetamine variants in that case.

And if I'm right, it is *mighty* interesting that you're looking for a whole kilo of the stuff.

[Edited on 9-15-09 by UnintentionalChaos]

Paddywhacker - 14-9-2009 at 20:46

How many times do you need to be slapped down for jumping to conclusions before you stop?

Paddywhacker - 15-9-2009 at 00:04

Quote: Originally posted by kclo4  
what might they be used for?

If you mean, are they precursors for anything famous then I don't know, but I doubt it.

Otherwise that is a silly question. Just look at an organic textbook for reactions of phenols.

watson.fawkes - 15-9-2009 at 17:00

Quote: Originally posted by Paddywhacker  
Does anybody know of an industrial-grade supplier of 1 kg quantity?
I have no personal experience, but pretending that I was a junk food manufacturer, I came up with Food Additives (ThomasNet) and Food Additive and Preservative Distributors (Business.com), for example. Here's one distributor I pulled up first: BHA, Flakes, FCC (Spectrum) $126.35 / 500 g.

starman - 15-9-2009 at 17:37

Quote: Originally posted by Paddywhacker  
Quote: Originally posted by kclo4  
what might they be used for?

If you mean, are they precursors for anything famous then I don't know, but I doubt it.

Otherwise that is a silly question. Just look at an organic textbook for reactions of phenols.


I don't think its such a silly question.Perhaps could be rephrased to "what do you plan to use it for?"
Defensiveness and hostility breed suspiscion.

Paddywhacker - 15-9-2009 at 19:01

Thanks Watson.
Quote: Originally posted by starman  
Quote: Originally posted by Paddywhacker  
Quote: Originally posted by kclo4  
what might they be used for?

If you mean, are they precursors for anything famous then I don't know, but I doubt it.

Otherwise that is a silly question. Just look at an organic textbook for reactions of phenols.


I don't think its such a silly question.Perhaps could be rephrased to "what do you plan to use it for?"
Defensiveness and hostility breed suspiscion.


That question is not silly, it is impertinent. You'll know what I do with it when I publish, and then you can comment. Otherwise, do your own research.

not_important - 15-9-2009 at 21:06

Quote: Originally posted by watson.fawkes  
I have no personal experience, but pretending that I was a junk food manufacturer, I came up with Food Additives (ThomasNet) and Food Additive and Preservative Distributors (Business.com), for example. Here's one distributor I pulled up first: BHA, Flakes, FCC (Spectrum) $126.35 / 500 g.


Food grade is usually fairly expensive, better might be the grades for adding to non-food oils and plastics. Searching Thomas for 'antioxidants' got 87 hits, though many are pharam suppliers there some that are not such as :
http://www.wegochem.com/en/products/petroleum-additives/

I hope you want a 180 kg drum of 2,6-DTBP

Paddywhacker - 16-9-2009 at 12:21

Quote: Originally posted by not_important  
Quote: Originally posted by watson.fawkes  
I have no personal experience, but pretending that I was a junk food manufacturer, I came up with Food Additives (ThomasNet) and Food Additive and Preservative Distributors (Business.com), for example. Here's one distributor I pulled up first: BHA, Flakes, FCC (Spectrum) $126.35 / 500 g.


Food grade is usually fairly expensive, better might be the grades for adding to non-food oils and plastics. Searching Thomas for 'antioxidants' got 87 hits, though many are pharam suppliers there some that are not such as :
http://www.wegochem.com/en/products/petroleum-additives/

I hope you want a 180 kg drum of 2,6-DTBP

Whoah, thanks NI. There are lots of really exotic phenolic antioxidants there. As you point out, the trouble is in getting the supplier to part with quantities as small as a kg.

starman - 16-9-2009 at 18:03

Quote: Originally posted by Paddywhacker  


That question is not silly, it is impertinent. You'll know what I do with it when I publish, and then you can comment. Otherwise, do your own research.


Impertinent? What the hell are you ,european royalty?
Please do indicate what journal your paper will be published in your lordship.Be interesting to see if the talent is on par with the ego.



[Edited on 17-9-2009 by starman]

Paddywhacker - 19-9-2009 at 17:44

Thread split? not to anywhere I can find.

I wanted to mention figging. ... not pertinent to the thread topic, I know.