... Tel/Fax: +86-532-82212928 Contact Person:DianaCertificate of AnalysisFLUX CALCINED DIATOMACEOUS EARTH FILTER AID QH-300#PHYSICAL PROPERTIESCHEMICAL PROPERTIESGradeQH-300 ... #SiO2≥89.7%ColorWhiteAl2O3≤4%DescriptionFlux Calcined Filter AidFe2O3≤1.5%Specific Gravity2.3 g/cm³CaO≤0.6%Moisture≤1.0 ... ., Ltd.16-1, No.48, Luzhou Road,Jiaozhou, Qingdao, China Calcined Diatomaceous Earth QH-500#