Lithopone B301 99%

Specification for Lithopone B301: Sum total of zinc (m/m): 99.0% min (based on zinc sulfate and barium sulfate) Total zinc amount: 28% min (based on zinc sulfate) Zinc oxide (m/m): 0.8% max 105 C volatile substance (m/m): 0.3% max Water soluble salts(m/m): 0.1% max Residue on sieve (63um sieve pore)(m/m): 0.1% max Water extraction alkaline: neutral Oil absorption (g/100g): 14 Reducing color powder (compare with standard sample): 100% Covering powder (contrast ratio): not lower than 5% standard sample Range of application: Coating, paint producing, printing ink, plastic,rubber, paper making, enamel etc.