A customer inquired how to reduce the production of black anode sludge when we use acid tin plating brightener?
Tin itself is insoluble in dilute sulfuric acid, in dilute sulfuric acid will not be oxidized to SnO. Only in electrolysis as anode precipitation of oxygen, will be oxidized by oxygen and produce black SnO, SnO from the tin plate off the formation of anode mud slag.
The larger the anode area is, the smaller the corresponding anode current density is, the higher the anode current efficiency is, the less oxygen is precipitated on the anode, and the less SnO is generated.
Therefore, when using Bigely acid tin plating brightener, if you want to reduce the anode sludge, the main measure is to have a large enough anode area, our engineers will recommend to control the anode current density at (1.0~1.5)A/dm2, and there should be no big gas bubbles on the anode tin plate during production.
About us
Guangdong Bigely Technology Co., Ltd. ,founded in 2003, is a high-tech enterprise integrating R & D，production, sales and service, specializing in the production of electroplating additives. As a famous electroplating additives source manufacturer in China, Bigely has over 20 years' experience in electroplating additives production and own production base of 5000 square meters. We can produce 15,000 tons of electroplating additives every year, which can fully meet the needs of customers.
If you need our high-quality electroplating additives, please contact us. We can provide you samples for test, and also provide a series of services.
