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. BTAâ?¢Na can also be used as anti-discolor agent, coating additive and luboil additive. Widely used in dimer acid, alkyd resin, synthetic fiber nylon 8 and 9, plastic plasticizer, printing ink, pesticide emulsifier, textile printing and dyeing auxiliaries, industrial solvents, detergents, metallic minerals flotation agent, remover, can also be used to make emulsified oil, metal processing oil, rust-proof oil, paint, oil is copy paper, pen, touch typing paper, detergent, laundry soap, softening agent, daily chemical and other industries.