ポリ塩化ビニルの加熱脱塩酸の簡易新定量法

概要

論文の詳細を見る
It is well known that the estimation of liberated hydrochloric acid by the thermal decomposition of P. V. C. (Polyvinyl chloride) is important in various studies of P. V. C., but there are many unsatisfactory points for experimental studies by use of usual A. S. T. M. or similar method. Anew procedure of using calcium carbonate as an arresting agent for liberated hydrochloric acid was proposed by the authors. While the usual method is an estimation of liberated hydrochloric acid from untreated P. V. C., this method is an estimation of liberated hydrochloric acid from a mixture of P. V. C. and a substance stable for heating. Porcelain crucible was used and the experimental procedure could be carried out simply and accurately. The method could be applied for thermostability test below 200°C as well as thermal decomposition test above 200°C; also, the method could be applied for estimation of both of liberated hydrochloric acid and total chlorine. The limit of application is large since the test is a simple procedure.
社団法人日本分析化学会の論文