Study of Alkali Digestion of Birch Bark

概要

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1. The digestions of birch bark were carried out with water medium under various digesting conditions. It was found NaOH was the most excellent as digesting reagent within the limits of experiments. 2. Refering to the results of supplementary experiments, it was generally infered that the decreases of yields of main digestion products under excessive digestions were ascribed to secondary decomposition of soaps produced.1. Mizu o yoobai to shite kabakawa no arukari-jookai o kokoromita ga, tekitoo na jookai-jooken no moto ni oitewa jookai wa kanzen ni okonaware, NaOH wa mottomo sugureta jookai-shiyuku de arukoto o miidashita. 2. Hojojikken no kekka o sanshoo shite, kajookai no baai ni okoru shuyoo jookaibutsu no shuuryoo no genshoo wa ippan ni hajimeni seisei suru sekken no nijiteki bunkai de aru koto o suitei shita.
東京大学大学院農学生命科学研究科附属演習林,The Tokyo University Forestsの論文