目视比色法判定肟钠合成反应的终点

Judgment on the Reaction End of Synthesis Sodium α-Cyanobenzyldoxime by Visual Colorimetry

本文对肟钠的生产工艺进行了分析，提出利用苯乙腈的显色反应，采用目视比色法，检测肟钠合成液中苯乙腈的剩余含量。根据显色液的色泽来判定肟钠合成反应是否达到终点。方法准确、实用、快速。

In this paper,the production process of sodium α-cyanbenzyldoxime was studied,and visual colorimetric method to judge the content of benzyl cyamide in the reaction liquor was introduced.