Sodium Mercaptobenzothiazole (MBT Na)


Sodium mercaptobenzothiazole can be used as the copper corrosion inhibitor in circulating cool water system. The mechanism is due to the chemical absorption of MBT Na on the copper surface. Or chelation reaction between them. The dosage of 4 mg/L is preferred. Sodium mercaptobenzothiazole can also be used as a plasticizer and photometer for acid copper plating.

CAS No.: 2492-26-4

Molecular Formula: C7H4NNaS2

Molecular Weight: 189.22

Structural Formula:

Sodium mercaptobenzothiazole


AppearancePale yellow transparent liquid
Active content (wt), %50.0 Min.
Density (20℃) g/cm31.20 Min.

Package and Storage:

200L plastic drum, IBC(1000L). Also as customers’ requirement. Storage for six months in a shady room and dry place.