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BTA•Na Sodium Salt of 1,2,3-Benzotriazole

CAS No. 15217-42-2

Molecular formula: C6H4N3Na   Molecular Weight: 141.11


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


BTA•Na can be absorbed on metal surface and form a thin film to protect copper and other metals. BTA•Na can be used together with many scale inhibitors and fungi disinfectants in circulating cool water system, and it has good corrosion inhibition effect in circulating cool water system. The dosage of 2-4mg/l is preferred. BTA•Na can also be used as anti-discolor agent, coating additive and luboil additive.

Package and Storage:

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


BTA•Na; sodium salt of 1,2,3-Benzotrialole;1,2-Aminoazophenylene;1,2,3-Triazaindene