天然重晶石參考技術(shù)指標(biāo)SPECIFICATIONFORNATURALBARIUMSULPHATE硫酸鋇BaSO4+SrSO498%～99%白色度(WH計(jì)算)Whiteness(WHasCalculation)95%～97%氧化硅SiO2＜0.1%三氧二化鋁Al2O3＜0.01%氧化鈣CaO＜0.6%氧化鎂MgO＜0.01%鐵Fe＜0.03%磷Phosphates＜50ppm砷Arsenic＜1ppm重金屬HeavyMetals＜1ppm硫化物Sulphide＜5ug鈣/鎂Calcium/Magnesium＜0.15%酸溶解物質(zhì)Acid-Solublesubstances＜0.05%水中溶解物質(zhì)Solublesubstanceinwater＜0.1%灼燒失量LossonIgnition0.1%～0.19%揮發(fā)物(105℃)VolatilizedMatterat105℃0.14%酸堿值pHValue6.5～8電導(dǎo)率Electricconductivity(US/cm)147～163吸油量OilAbsorption(g/100g)10～15分散能力DispersibilityExcellent(良好)