アルコキシル基定量法中のヨウ化アルキル燃焼触媒としての酸化銅の使用 : 有機微量分析に関する研究(第10報)

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It was ascertained that the platinum contact used as a catalyst for burning the alkyl iodides formed in the microdetermination of alkoxyl groups can be successfully replaced with cupric oxide. The alkyl iodides formed by hydrolysis of a sample with hydriodic acid are carried by air over cupric oxide heated about 750°C, and burned into iodine and carbon dioxide. The iodine is absorbed with silver, and the carbon dioxide with soda asbestos, and they are weighed. From the amount of the iodine and the molecular ratio between the carbon dioxide and the iodine, the alkoxyl groups are determined separately. Analytical conditions are also discussed.
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