... white,Griffith's white,enamel white,lithopone pearlwhite,ZnS•BaSO4 and many other chemical materials. II. ... white,Griffith's white,enamel white,lithopone pearlwhite,ZnS•BaSO4 ,our advantage:(1)Factory direct supply ... IIII.Specificaiton:ParametersSpecificationZinc and BaSO4 (as ZnS)>99%Zinc (as ZnS)>28-30%Volatile matters at 105 C ... <0.3%Zinc oxide<0.6%Soluble ...