W-M for copper plating
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Chemical name: 3-(benzimidazoyl-2-mercapto) -propylsulfonate
Molecular formula: C10H10N2NaO3S2
Appearance White or yellowish powder
Assay >= 90%
Level of addition 10 ~ 100 mg/l
It is easily soluble in water and use as brightener in acidic copper plating, when combining with polyether and wetting agent, a better deposit can be obtained.