1.high quality 2.reasonable price ITEMSTANDARDSTANDARDCONTENT%≥90.0≥85.0Chloride(Cl-)%≤0.003≤0.005Sulphate (SO42-)%≤0.001≤0. ... grade Second Grade Colour Index 10 max 20 max Purity 90% min 85% min Sulphate as SO4 0.001% max 0.002 ... , printing and dyeing industry, chemical industry, rubber industry, steel industry, paper industry, pesticide industry, food industry, poultry industry etc.10.Packing ...