... crystal BTA, columnar BTA, tablet BTA and liquid BTA. 1,2,3 benzotrazole(BTA)Properties:It is solved slightly in the ... BTA (liquid BTA)It is an upgraded product of 1,2,3 benzotriazole. It can be solved in water by any ... ) %30minPH (1%aqueous solution)7-9Density1.30±0.15 1,2,3 benzotriazole