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DCHAS-L Discussion List Archive



Date: Thu, 5 Aug 2010 11:09:26 -0400
Reply-To: DCHAS-L Discussion List <DCHAS-L**At_Symbol_Here**LIST.UVM.EDU>
Sender: DCHAS-L Discussion List <DCHAS-L**At_Symbol_Here**LIST.UVM.EDU>
From: Rita Kay Calhoun <r.calhoun**At_Symbol_Here**MOREHEADSTATE.EDU>
Subject: Re: oxyalkylated alcohols
In-Reply-To: <13dc3.66ecae7d.398c032c**At_Symbol_Here**cs.com>

Monona,

                 I’m an analytical chemist, so I consulted with my “Organic”  c olleagues.  The best they can come up with is something like

                                 R-O-(CH2)n-OR’

i.e., you take a poly-ol and replace one, or more, of the alcohol H’s with an alkyl group.    In SciFinder it sh ows a similar structure but with the R group being the carboxyl end of an ester and several repeating ether linkages.  Essentially, you’re looking a t poly ethers, sometimes as part of an ester.  By the way, this is not really commonly used nomenclature.  I agree that it sounds like the manufacturers are trying to obfuscate. 

                 Hope this helps. 

Kay Calhoun

P.S. Thanks for the opportunity to use obfuscate.

From: DCHAS-L Discu ssion List [mailto:DCHAS-L**At_Symbol_Here**list.uvm.edu] On Behalf Of ACTSNYC**At_Symbol_Here**CS.COM
Sent: Thursday, August 05, 2010 8:06 AM
To: DCHAS-L**At_Symbol_Here**LIST.UVM.EDU
Subject: [DCHAS-L] oxyalkylated alcohols

OK, professors, I give up on this class of chemicals.  I am seeing MSDSs o n everything from detergents to pesticides to photosensitive chemical develop ers listing this category of chemical.  Of course, they are hiding an individual chemical by listing a whole class probably by a synonym, but I'm even confused about what the generic structure looks like.

I know what an alkyl group is, so let's call it R-

I know what an alcohol looks like, so lets use ethanol.

Oxy means an 0=

But how do I fit these together into what they are talking about?

Thanks.

Monona

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