Chemistry: White powder, indissoluble in water, no reaction with hydrogen sulphide and alkaline liquid. In acid solution, resolving into air hydrogen sulphide.  Application: Mainly used in paints and for making white paint and other light colour paints. Also can be employed in rubber, printing ink, varnished cloth, paper making, enamel, leather, stationery, paint producing, plastic, coating etc.  Packing: 25kg plastic woven bags with PE liner Output: 18000.00/mt every year Specs  Ba+SO4 (As ZnS): 99.0% Min Total zinc amount(base on zinc sulfate)v 28% Min Zinc oxide: 0.6% Max 105 degree volatile: 0.3% Min Water Soluble: 0.4% Max Residue on sieve (63um sieve pore): 0.1% Max  Color(compare with standard sample): 105% Min Oil absorption, g/100g: 14 Max  Reducing power(compare with standard sample): 105% Min