According to the principle of karl Fischer coulometry, the water content in rectified VCM dried by solid caustic soda was determined using Modle LG-5 liquid hydrocarbon flash vaporization sampler. The difference among parallel analytical datas was less than 20 × 10~ (-6).

  • 利用卡尔.费休库仑法的原理,使用LG-5型液态烃闪蒸气化取样进样器,测定经固碱干燥系统干燥的精馏VCM中的水分含量,其平行分析数据误差小于20×10-6。

  • 互联网摘选 2025-01-20 12:47:46

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