天然重晶石参考技术指标SPECIFICATIONFORNATURALBARIUMSULPHATE硫酸钡BaSO4+SrSO498%～99%白色度(WH计算)Whiteness(WHasCalculation)95%～97%氧化硅SiO2＜0.1%三氧二化铝Al2O3＜0.01%氧化钙CaO＜0.6%氧化镁MgO＜0.01%铁Fe＜0.03%磷Phosphates＜50ppm砷Arsenic＜1ppm重金属HeavyMetals＜1ppm硫化物Sulphide＜5ug钙/镁Calcium/Magnesium＜0.15%酸溶解物质Acid-Solublesubstances＜0.05%水中溶解物质Solublesubstanceinwater＜0.1%灼烧失量LossonIgnition0.1%～0.19%挥发物(105℃)VolatilizedMatterat105℃0.14%酸碱值pHValue6.5～8电导率Electricconductivity(US/cm)147～163吸油量OilAbsorption(g/100g)10～15分散能力DispersibilityExcellent(良好)