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The equilibrium between glucose and sulphurous acid

โœ Scribed by Vas, K.

Publisher
Wiley (John Wiley & Sons)
Year
1949
Weight
421 KB
Volume
68
Category
Article
ISSN
0368-4075

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โœฆ Synopsis

The apparent constants of equilibrium and velocity of the glucose -+ sulphurous acid reaction were measured undcr various conditions at. zo'c. It was found that : ( I ) the value of.the apparent equilibrium ccnrtant is mainly a function of pIl; it is lowest between pI, 3 and 5 -5 and increases rapidly in more acid or more alkaline regions. Changes in conccntration of the reactants (glucose = 1-40 g./100 ml. ; SO, = 130-3500 mg.11.) seem to h a w only a minor influence; (2) the apparent velocity constants of decomposition and of addition are functions of the T h e almost complete panllclism between thc dependence of these values upon p,, in the case of the bisulphite compounds of both glucosc and benmldehyde suggests the same reaction mechanism.

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