Analytical Chemistry

Spectrophotometric and titrimetric determination of carboxylic acid anhydrides

KK Verma, P Tyagi

文献索引：Verma, Krishna K.; Tyagi, Pramila Analytical Chemistry, 1984 , vol. 56, # 12 p. 2157 - 2160

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被引用次数: 11

摘要

Two redox methods are descrlbed for the determlnation of carboxylic acid anhydrides involving reactlon with elther an excess of 4-amlnophenol or a measured but excessive amount of sulfanllamlde and photometrlc tltratlon of N-acyl-4-amlnophenol with 2- iodylbenroate by measurlng the absorbance of orange-red product at 444 nm or the residual amount of sulfanilamide Is determlned by tltratlon with chloramine-T In the presence of ...