... 2,3-Benzotriazole 99.8%, --metal's slow corrosion water treatment chemical 2) low poison, LD50 for small mouse is 965mg/kg 1,2 ... dimethylformamide, and slightly soluble in water. Uses:It's mainly used as rust-preventer,antifreezing liquid,antioxidant additive( ... high molecular materials'(polyester and polyesteramide)capacity 1,2,3-Benzotriazole 99.8%, --metal's slow corrosion water treatment chemical