... needle crystal BTA, columnar BTA, tablet BTA and liquid BTA. 1,2,3 benzotrazole(BTA)Properties:It is solved ... distance transportation.Specification (for needle crystal, columnar, tablet)Executive standardHG/T3824-2006Appearancewhite needle crystalPurity %99.0minColor ... BTA)It is an upgraded product of 1,2,3 benzotriazole. It can be solved in water by ... solution)7-9Density1.30±0.15 1,2,3 benzotriazole