... , insoluble in water, no reaction with H2S and lye, release H2S gas when reacting with strong acids. Specification: Item Lithopone ... oxide content, %≤0.5≤0.3Color, compared with standard samples betterbetterTint reducing power, compared with standard samples≥105≥105105°C volatile matter, ... bags upon client's request. Storage: keep in a cool, dry and ventilated place,keep away from strong acids, ...