1,absorbed on metal surface 2,be used together with many scale inhibitors and fungi disinfectants 3,dosage of 2-4mg/l 4,BTA ... inhibition effect in circulating cool water system. The dosage of 2-4mg/l is preferred. This product can also be used ... six months in shady room and dry place.Synonyms:BTA; 1,2,3-Benzotrialole;1,2-Aminoazophenylene;1,2,3-Triazaindene