酸ヒドラジドの縮合反応および酸ヒドラジドと酸アミドとの縮合反応について (第1報) : 反応物質の分析法

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In order to confirm the condensation reaction of acetohydrazide and acetamide, separatory determinations of unreacted components as well as the supposed products, 3, 4-dimethyl-4-amino-1, 2, 4-triazole and 3, 4-dimethyl-4-aminotriazole, have been investigated. Acetohydrazide and 3, 4-dimethyl-4-amino-1, 2, 4-triazole were determined by iodometric method with accuracy of 99.0 % against the using of 0.1 mM sample. Acetohydrazide was analyzed from a mixture of 3, 5-dimethyl-4-amino-1, 2, 4-triazole with 99.0 % detection efficiency from using of 0.1 mM of the mixture by use of either K2HgI4, K3Fe (CN) 6 or KI03. Also, 0.1 mM of 3, 5-dimethy1-1, 2, 4-triazole was determined with 99.8 % accuracy by use of AgNO3 method or 99.7 0% accuracy in the presence of a large excess of acetohydrazide by use of an improved method. Reproducible analytical data were obtained by using either single or mixed sample.
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