1960 年 80 巻 9 号 p. 1160-1165
Some analytical conditions for the determination and distinction of alkoxyl groups by the combustion method are discussed. The required temperature of silver gauze for absorbing iodine quantitatively is 150°. At this temperature, silver gauze quantitatively absorbs iodine which corresponds to 45% of the weight of the silver gauze. The temperature for complete combustion of methyl and ethyl iodides with platinum contact in air stream is 700°.
The distillation time of methyl iodide is 10 minutes and that of ethyl iodide is 20 minutes, but it seems a little longer time than that is necessary when the reaction mixture containing a large amount of organic solvent is used to hydrolyse the sample.