Complaint
| PRODUCT: CALCIUM CARBONATE CACO3 | ||
| CHARACTERISTICS | USES | |
| Natural, Untra-fine Calcium Carbonate Powder, | Paint, Paper,Plastic…industry | |
| manufactured from very high purity limestone by | Coated for Master batch, | |
| CHEMICAL ANALYSIS OF THE RAW MATERIAL | ||
| COMPOUND | VALUE | |
| Calcium Carbonate - CaCO3 | > 98% | min |
| Iron Oxide - Fe2O3 | 0.015% max | |
| Magnesium - MgO | 0.02% | max |
| Silica - SiO2 | 0.03% | max |
| Aluminium Oxide - Al2O3 | 0.02% | max |
| PHISICAL PROPERTIES OF RAW MATERIAL | ||
| Density | 2.7g/cm3 | |
| Hardness | 2.7-3 Moh | |
| Loss on Ignition | 43.80% min | |
| TECHNICAL DATA OF THE PRODUCED MATERIAL | ||
| Moisture | 0.2% max | |
| PH Value | 8-9 | |
| DOP oil Absorption | 24g/100g CaCO3 max | |
| Whiteness(WHITENESS ANALYSER | 96.5% Min | |
| Brightness | 95.5% Min | |
| Coated stearic acid ratio | 1.2% | |
| Specific Gravity | 0.75g/cm3 | |
Calcium carbonate Applications:
Heavy calcium carbonate
Heavy calcium carbonate also called ground calcium carbonate, is produced by natural superior calcite, which has high purity and whiteness. The size ranges from under 400 mesh which is called primary products, to 3000 mesh or above, depending on your requirement.
Heavy (Ground) Calcium Carbonate is widely used as filler and improver in plastic, paint, paper-making, rubber, pharmacy, feed, daily chemical, ceramics, adhesives and ink industry.
Precipitated light calcium carbonate specification
| Test items | Precipitated light calcium carbonate |
| CS-1005 | |
| CaCO3% ≥ | 98 |
| PH | 8.0-10.0 |
| HCL insoluble % ≤ | 0.1 |
| Moisture % ≤ | 0.1 |
| Particle size D50 um | 9 |
| Fe content % ≤ | 0.08 |
| Mn content % ≤ | 0.006 |
| 125μm screen % ≤ | 0 |
| 45μm screen % ≤ | 0.2 |
| Whiteness (R457)% ≥ | 95 |
| Oil absorption ml/100g ≤ | 54 |
| Appearance | White powder |
Calcium carbonate physical property Specification
| Items | Specification | Result |
| Assay | 98.0~100.5% | 99.55% |
| Appearance | White or off-white powder | Conforms |
| HCl insoluble | ≤0.20% | 0.06% |
| Free alkali | Conforms | Conforms |
| Alkalis and Mg | ≤1.0% | 0.86% |
| Loss on drying | ≤2.0% | 0.13% |
| Ba Cd Fl As Pb Hg | ≤300mg/kg ≤2.0mg/kg ≤350mg/kg ≤3.0mg/kg ≤3.0mg/kg ≤1.0mg/kg | <300mg/kg <2.0mg/kg <350mg/kg <3.0mg/kg <3.0mg/kg <1.0 mg/kg |
| ITEM | 3500 mesh calcium carbonate filled masterbatch |
| CA-2014 | |
| Assay % ≥ | 80 |
| PP/PE% ≤ | 20 |
| PH(10% suspension) | 8-10 |
| Hydrochloric acid insoluble content % ≤ | 0.1 |
| Moisture content% ≤ | 0.16 |
| D50(um) ≤ | 1.26 |
| Specific surface area (m2/g) ≥ | 1.6 |
| Fe% ≤ | 0.08 |
| Mn% ≤ | 0.006 |
| Sieve residue: 125μmTest sieve% ≤ 45μmTest sieve% ≤ | 0 0.2 |
| Whiteness (R457)% ≥ | 97 |
| Oil absorption (DOP)ml/100g ≤ | 35-38 |
