Molecular formula :
nature : Pretreatment of the water treatment process, in the pre-formed metal surface protection film of a category of chemicals. If Sodium Hexametaphosphate plus zinc, such as sodium tripolyphosphate. The purpose of the pre-film is the use of chemicals in the early stage of corrosion inhibition and improve pharmaceutical dosage levels; In normal operation the addition of a small amount of corrosion inhibitor can maintain and repair the protective film, pharmaceutical and cost savings.
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