Evaluation of Tin Coatings on Bronzes of Ancient China; Iron or steel placed in copper sulfate also receives a loose immersion deposit. 春秋时期镀锡青铜器镀层结构和耐腐蚀机理研究铁或钢放入硫酸铜中,也会生成疏松的浸镀层。
The advantages of electroless tin plating process at the present stage and the composition of two kinds of electroless plating bath of sulfate system and alkyl sulfate system were introduced. 介绍了现阶段化学镀锡工艺的优点及硫酸盐体系与烷基磺酸盐体系2种化学镀锡液的组成。
The process formula and flow of BH-411 bright sulfate tin plating, maintenance and management of the bath were introduced. The functions of sulfuric acid, stannous sulfate and additive in the electrolyte were discussed. 介绍了BH-411光亮硫酸镀锡的工艺配方、工艺流程和镀液的维护与管理,讨论了镀液中的硫酸、硫酸亚锡和添加剂的作用。
Development of multifunctional tin plating additive used for sulfate bath 多功能硫酸盐镀锡添加剂的研制
Preparing Tin(ⅱ) Sulfate by Electrolysis in a Diaphragm Cell 离子隔膜电解法制备高纯硫酸亚锡
Iron(ⅲ) is reduced by stannous chloride and then the effect of residual tin(ⅱ) is eliminated by adding potassium iodide. Iron(ⅱ) is titrated with standard cerium sulfate with sodium diphenylamine sulfonate as indicator. 以氯化亚锡还原铁(Ⅲ),磺酸钾消除余量锡(Ⅱ)的影响,然后用二苯胺磺酸钠为指示剂,标准硫酸铈滴定铁(Ⅱ)。