Natural heavy calcium carbonate Technical parameter: Name & parameter model Specification Itemnatural heavy calcium carbonate Sn-1043 Caco3 content (dry basis), % 94 Ph(10% soliquit)8-10 Insoluble substance in hydrochloric acid, % 1.5 Moisture content, % 0.2 Bulk density, g/cm3 1.09 Top cut(d98), m 42 Average grain(d50), m 19 Fe, % 0.050 Mn, % 0.0060 Residuesú¦ 325m, % 125m, % 0 2.5 Whiteness(r457), % 92 Absorption oil number (dop), ml/100g 33 Appearancepowder Usageú¦ Injection mould, extrusion & injecting mould, pvc profile & pipe, frp etc. Suitable for the modification of pvc, pp, pe, abs and hips. Fillers of paintóprint inkóplasticórubberóadhesivesópharmacyófodderópaper-makingópolyethylene(pe)ópolypropylene(pp)óabsóbuilding materialú¼etc. Characteristicú¦ Identical grain size ólow oil absorption value. To reduce the cost of products ; to make products have good foamed effect. To enhance hardnessórigidityósize stability ófire-retardantnessóglossiness of products. In rigid pvc products, it can accelerate gelation, enhance cold impact strength, eliminate plate out, and improve surface gloss. Bags