Light Calcium Carbonate Industrial precipitated calcium carbonate (light calcium carbonate) Formula: CaCO3 Molecular Weight: 100.09 Outside: White Powder Nature: White powder, odorless, tasteless, unchanging in air, insoluble in water, slightly soluble in water containing ammonium salt or carbon dioxide, insoluble in alcohol. In case of dilute acetic acid, it is easy to boil and dissolve. Heat breaks down into calcium oxide and carbon dioxide. Technical Requirements Calcium carbonate (CaCO3) % 98.8 PH value (10% suspension) 9.0--10.0 Under the 105 ºC or less volatile matter content of 0.70 HCL insoluble matter content % 0.16 Sedimentation volume ml/g 2.6 Iron (Fe) content % 0.08 Manganese (Mn) content % 0.006 Sieve residue 125 m experimental sieve % 0.006 45 m test sieve % 0.20 Whiteness 95
Light Calcium Carbonate Application
Widely used in rubber, plastic, PVC pipes, profiles, paint, paper, paint, sealant, daily necessities, medicine, feed as filler and reinforcing agent. Not only can increase the volume, reduce the cost, more important is to improve the processing performance of the matrix, but also can play a role in strengthening, tensile, wear-resisting, tear resistance, improve luster, so calcium carbonate is not a general filler, but is known as a functional filler. Light Calcium Carbonate with high whiteness and good fluidity is the largest filler for PVC pipes and profiles, which can increase the volume, stabilize the size, heat resistance, level off and luster of the products, thus reducing the cost and achieving the purpose of product quality. Calcium rubber, with low oil absorption value, good reinforcement effect, wear resistance and tear resistance and other characteristics. Special calcium coating can enhance adhesion, color firm oxidation resistance, increase fill, reduce costs and other advantages.
Physical Property Data 1. Properties: white fine crystalline powder, odorless and tasteless, can absorb odor. 2. The relative density (2.5 g/cm3, 25/4 ºC light calcium carbonate) : 2.6 2.7 (2.710 2.930 heavy calcium carbonate) 3. Relative vapor density (g/cm3, air =1) : 2.5~2.7 4. (DHS C) melting point: 1339 ºC, 825-896.6 (decomposition, light calcium carbonate) Boiling point (C, atmospheric pressure) : undetermined 6. Boiling point (C, 5.2kpa) : undetermined 8. Flash point (F) : 138 Specific rotation () : not determined 10. Spontaneous combustion point or ignition temperature (C) : not determined Vapor pressure (kPa,25 C) : undetermined 12. Saturated vapor pressure (kPa,60 C) : undetermined Heat of combustion (KJ/mol) : not determined 14. Critical temperature (C) : not determined 15. Critical pressure (KPa) : undetermined 16. Logarithm of oil-water (octanol/water) distribution coefficient: undetermined 18. Lower limit of explosion (%,V/V) : not determined 19. Solubility: soluble in dilute acids such as acetic acid, hardly soluble in dilute sulfuric acid, almost insoluble in water and ethanol. 20. Specific heat (J/(kg · ºC) : 0.836 ~ 0.8951 (0 ~ 100 ºC) 21. The linear coefficient of thermal expansion (ºC) : 11.7 x 10-6 (15 ~ 100 ºC)
Complaint
