There are three purity measuring methods of vulcanizing accelerator NOBS: potentiometric titration, indicator titration and liquid chromatography.
前言：硫化促进剂nobs纯度的测定方法有三种：电位滴定法、指示剂滴定法和液相色谱法。
Insoluble sulfur is a high performance vulcanizing agent of the rubber and vulcanizing accelerator, which is mainly used to produce steel radial-ply tire.
不溶性硫磺是一种性能优异的橡胶硫化剂和硫化促进剂，主要用于钢丝子午线轮胎的生产。
Insoluble sulfur is a high performance vulcanizing agent of the rubber and vulcanizing accelerator, which is mainly used to produce steel radial-ply tire.
不溶性硫磺是一种性能优异的橡胶硫化剂和硫化促进剂，主要用于钢丝子午线轮胎的生产。
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