Trivalcnt chromium was oxidized to hexavalent chrome by alkaline potassiumpersulfate under high -temperature. Then total chromium was measured by colorimetry.
在高温下，用碱性过硫酸钾溶液将水样中三价铬氧化为六价铬，比色测定总铬。
2
Minor cationic polymer clay stabilizer PTA was synthesized with epichlorohydrin and dimethylamine as monomers and potassiumpersulfate - sodium sulfite as initiating agent.
以环氧氯丙烷、二甲胺为反应单体，过硫酸钾-亚硫酸钠为引发剂合成了小阳离子聚合物粘土稳定剂pta。
3
Sucrose acrylate is used as a crosslinking agent instead of the expensive sucrose ether, and potassiumpersulfate is used as a initiator to prepare carbomer in the water solution.