... needle crystal BTA, columnar BTA, tablet BTA and liquid BTA. 1,2,3 benzotrazole(BTA)Properties:It is solved slightly in the ... mechanical shaping and trimming from the crystal of BTA. The size can be sadjusted according to the requirement of the customers ... soluble BTA (liquid BTA)It is an upgraded product of 1,2,3 benzotriazole. It can be solved in water by any ...