1) 1,2,3-Benzotriazole 99.8%, --metal's slow corrosion water treatment chemical 2) low ... bags or fiber drums with plastic bags in.Guide nameGuidePurity≥99.8%Chroma≤NO.40Moisture≤0.04%Melting point≥97°CAsh ... molecular materials'(polyester and polyesteramide)capacity 1,2,3-Benzotriazole 99.8%, --metal's slow corrosion water treatment chemical