Whether galvanized steel is toxic

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Whether galvanized steel is toxic

Galvanized metal surface is not toxic, but the raw material cyanide used in the process of galvanized is highly toxic, serious pollution to the environment, in recent years has tended to use low cyanide, micro cyanide, cyanide free galvanized solution.

Galvanizing is a surface treatment technology in which a layer of zinc is plated on the surface of metal, alloy or other materials to play the role of aesthetics and rust prevention. With the development of galvanizing process and the use of high performance galvanizing brightener, galvanizing has entered the protective and decorative application from the simple purpose of protection.

There are two types of galvanizing solution: cyanide plating solution and cyanide - free plating solution. Cyanide plating solution is divided into mild cyanide, low cyanide, medium cyanide, and high cyanide. Cyanide-free plating solution includes alkaline zincate plating solution, ammonium plating solution, sulfate plating solution and ammonia-free chloride plating solution. Cyanide galvanizing solution has good plating ability, and the coating obtained is smooth and fine, which has been used for a long time in production.

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