Stripping agent for silver coating
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Application number 201510706937. 5 Application date 2015. 10. 28 Applicant Hunan Saiao Silicon Industry Co., Ltd. Address 415300, Group 1, Huangni Community, Chujiang Town, Shimen County, Changde City, Hunan Province Applicant: Gong Degao, Hunan University of Arts and Science Inventor Gong Degao, Zuo Chenggang, Yi Xianwei, Zhou Shibiao Xiao Liuchang Xiao Anguo Patent agency Changde Great Wall Patent Office Name of invention A stripping agent for silver plating Summary A silver plating deplating agent, the composition of which is calculated by mass fraction, comprising cyanide complex salt 10-20, thiosulfate 50-60, carbonate 15-20, acetate 10-15 and Citrate 3~5, the above-mentioned chemical components are accurately weighed in proportions, and the stripping agent can be prepared after uniform mixing. The cyano complex double salt is selected from cyano complex potassium salt or cyano complex sodium salt. The thiosulfate is potassium thiosulfate, sodium thiosulfate or ammonium thiosulfate. The carbonate is sodium carbonate or potassium carbonate. The acetate salt is sodium acetate or potassium acetate. The citrate is sodium citrate or potassium citrate. Compared with the prior art, the present invention has the following advantages: 1. It is non-toxic and has little environmental pollution. 2. The silver coating can be quickly and efficiently removed at room temperature, and the performance is excellent. 3. Stripping agent, stable physical and chemical properties, convenient for storage and transportation. 4. The preparation method is simple and feasible, and the production cost is low.
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One Kind of silver plating stripper.pdf