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空气中氯化亚砜 (SOCl2 )的测定方法国内尚无报道。我们采用以四氯化碳 (CCl4)为吸收液 ,多孔玻板吸收采集 ,将国外报道的比浊法[1] 改为比色法 ,并按有关规范[2 ] 进行了实验研究 ,报道如下。一、原理SOCl2 被CCl4吸收后 ,经NaOH溶液提取 ,游离出氯离子 ,与硫氰酸汞作用置换出
Determination of thionyl chloride (SOCl2) in the air has not been reported in China. We use carbon tetrachloride (CCl4) as the absorbing liquid, glass absorption absorption plate, the turbidimetry reported in the foreign [1] colorimetric method, and according to the relevant specifications [2] conducted an experimental study, reported as follows . First, the principle of SOCl2 was CCl4 absorption, the NaOH solution was extracted, free of chloride ions, mercury and thiocyanate role replaced