Re: Gum analysis

From: Katharine Thayer ^lt;[email protected]>
Date: 10/15/04-04:35:20 PM Z
Message-id: <>


Katharine Thayer wrote:

> The first question we are addressing is a very basic one: IS there
> chromium in crosslinked gum, and if so, how much? Duncalf & Dunn are the
> only ones to date (1964) that I can find who have asked even the first
> part of this question. They say that they found chromium in dissolved
> and reprecipitated crosslinked gum "from which residual chromium had
> been extracted."

In the last sentence, I wrote "gum" when I meant "PVA." There is no
extant literature on the mechanism of dichromated gum; the nearest we
can get to it is the literature of dichromated PVA.
Received on Fri Oct 15 23:31:14 2004

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