Abstract

The pH rate profile of the rate of disappearance of ascorbic acid from aqueous solution under anaerobic conditions has been determined at 96°. The dependency on pH is surprisingly low over pH range of 1-11. The profile shows a small but apparently real maximum at pH = pKa 1 , an effect which can be rationalized by assuming formation of a salt-acid complex in solutions. The anaerobic rate shows buffer dependency but relatively small ionic strength effect.

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