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Specialty Chemistry Forums => Chemical Engineering Forum => Topic started by: Guy f on July 12, 2007, 05:45:31 AM

Title: Need Help from an industrial organo-chemist
Post by: Guy f on July 12, 2007, 05:45:31 AM

Hi,
I inspect industrial wastewater quality, and I've found a material I don't recognize. Can anyone tell me what is it, and what could be the source of it? I would be grateful.
This material contains (according to a GC-MS analysis):
 
1-nonadecene (cas# 18435-45-5)
docosane (cas# 629-97-0)
nonahexacontanoic acid (cas# 40710-32-5)
1-eicosene (cas# 3452-07-1)
nonacosane (cas# 630-03-5)
tetracosane (cas# 646-31-1)
1-hexacosene (cas# 18835-33-1)
tridecane (cas# 629-50-5)
1,5,4-dibromo-tetrapentacontane (cas# 1000156-09-4)
2-octadecyloxy ethanol (cas# 2136-72-3)
2-hexyl-1-decanol (cas# 2425-77-6)
octadecane (cas# 593-45-3)
2,6,10,14-tetramethyl hexadecane (cas# 638-36-8)

Thanks
Guy

Title: Re: Need Help from an industrial organo-chemist
Post by: AWK on July 12, 2007, 07:23:58 AM

Most of them are hydrocarbons from fuel

Title: Re: Need Help from an industrial organo-chemist
Post by: Guy f on July 12, 2007, 09:07:31 AM

Thanks for your reply,
I know they're found in fuels, but this one was an odorless oil. 

Title: Re: Need Help from an industrial organo-chemist
Post by: AWK on July 12, 2007, 09:38:21 AM

Odour depends on concentration and of content. This is a reason why deodorants work.

Title: Re: Need Help from an industrial organo-chemist
Post by: Guy f on July 15, 2007, 01:49:13 AM

Can you suggest possible sources for this transparent, odorless "oil" wich contains these fuel constituents?

Title: Re: Need Help from an industrial organo-chemist
Post by: Donaldson Tan on July 15, 2007, 09:07:01 PM

Odorants are not naturally present in fuel. They are added so that one can detect/smell fuel leakage.

Title: Re: Need Help from an industrial organo-chemist
Post by: Guy f on July 16, 2007, 08:00:09 AM

So you suggest this is some kind of crude fuel?   

Title: Re: Need Help from an industrial organo-chemist
Post by: constant thinker on July 16, 2007, 11:18:03 PM

What kind of businesses contribute to the waste water?

Title: Re: Need Help from an industrial organo-chemist
Post by: Guy f on July 17, 2007, 08:42:04 AM

heavy industry, including everything from crude oil processing to cookey bakeries.

Title: Re: Need Help from an industrial organo-chemist
Post by: Guy f on July 18, 2007, 06:32:58 AM

A few of these substances have double bonds, or alcohols... this does not seem to me to be fuel... Maybe someone has some other ideas?