potassium pyrophosphate

This article describes the determination of cobalt and stannous ions in black tin cobalt alloy electroplating baths by means of spectrophotometry. The effect of measuring wave length, oxidant, addition of potassium pyrophosphate, interfering elements and other affecting factors on the measured absorbance were investigated.

利用分光光度法测定锡钴合金镀液中钴（Ⅱ）和锡（Ⅱ）的含量，探讨了测量波长和氧化剂的选择、焦磷酸钾的加入量、干扰元素等对测量结果的影响。

determination of potassium pyrophosphate in tin-cobalt electrolyte by means of spectrophotometry

分光光度法测定锡钴合金镀液中焦磷酸钾的含量

A soft electromagnetic shielding fabric was successfully prepared by electroplating tin-nickel alloy on the Cu-plated PET fabric in potassium pyrophosphate system.

在化学镀铜的涤纶织物上于焦磷酸盐体系电沉积均匀致密的锡镍合金层。

Technology of non-cyanide Cu-Zn-Sn-Ni tetrabasic alloy imitative gold electroplating on FRP was studied using potassium pyrophosphate as main complexing agent, potassium sodium tartrate as auxiliary complexing agent and laboratory-synthesized copper pyrophosphate and zinc pyrophosphate as main salts.

以焦磷酸钾为主络合剂、酒石酸钾钠为辅助络合剂，自制焦磷酸铜、焦磷酸锌为主盐进行了玻璃钢无氰Cu-Zn-Sn-Ni四元合金电镀工艺研究。

producing potassium carbonate and potassium pyrophosphate with endoconches of hickory, bancoul nut and oiltea

利用山核桃、油桐、油茶蒲壳生产碳酸钾和焦磷酸钾

Treatment of potassium pyrophosphate Cu-plating effluent with bleaching powder

漂白粉处理焦磷酸钾镀铜废水