... with many scale inhibitors and fungi disinfectants 3,dosage of 2-4mg/l 4,BTA Specification:itemsindexAppearancePale yellow transparent liquidActive content ... inhibition effect in circulating cool water system. The dosage of 2-4mg/l is preferred. This product can also be used ... months in shady room and dry place.Synonyms:BTA; 1,2,3-Benzotrialole;1,2-Aminoazophenylene;1,2,3-Triazaindene