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Mechanism for the aqueous acid decomposition of the formaldehyde derivative of cellulose xanthate

✍ Scribed by Lyle H. Phifer; James P. Dux; Leland B. Ticknor; M. Thomas O'shaughnessy

Publisher: John Wiley and Sons
Year: 1965
Tongue: English
Weight: 297 KB
Volume: 9
Category: Article
ISSN: 0021-8995
DOI: 10.1002/app.1965.070090322

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✦ Synopsis

Kinetic equations for the decomposition of S-hydroxymethyl cellulose xanthate in the presence of acid and formaldehyde are derived. The assumed mechanism involves an equilibrium between the 8-hydroxymethyl cellulose xanthate and cellulose xanthic acid and xanthate ion. Decomposition appears to proceed via interaction between the cellulose xanthate ion and hydrogen ion which form an activated complex that subsequently decomposes to cellulose and carbon disulfide. The equations derived show the proper dependence on acid and formaldehyde concentrations. An estimate of the equilibrium constant between cellulose xanthate and S-hydroxymethyl cellulose xanthate is calculated from the rate constants.

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