325mesh Average particle size 40?.5祄 Moisture 0.2% Max #325 Sieve Reside 0.5%max Whiteness 95min Oil Absorption 14-17% Soluble in water 0.2%max PH Value 7.5-9.5 BaSO4 Purity 98%min HCL Insoluble Matter 98.6%min 400mesh Average particle size 38?.5祄 Moisture Max0.2% #325 Sieve Reside 0.1%max Whiteness 95min Oil Absorption 17% Soluble in water 0.2%max PH Value 7.5-9.5 BaSO4 Purity 98%min HCL Insoluble Matter 98.6%min 800mesh Average particle size 18?.2祄 Moisture 24?祄 #325 Sieve Reside 0.4%max Whiteness 95min Oil Absorption 0 Soluble in water Max0.2% PH Value 6.5-8.5 BaSO4 Purity 98%min HCL Insoluble Matter 99.6%min 1250mesh Average particle size 10?.2祄 Moisture Max0.2% #325 Sieve Reside 0.02%max Whiteness 95min Oil Absorption 17% Soluble in water 0.2%max PH Value 7.5-9.5 BaSO4 Purity 98%min HCL Insoluble Matter 98.6%min E-mail: