The huge majority of this chemical, utilized in industry is taken out by quarrying or mining. Pure calcium carbonate BP (e.g. for pharmaceutical or food use), can be formed using a pure extracted source (generally marble).
Alternatively, it is made using calcining crude calcium oxide. H2O or water is added to provide calcium hydroxide, and then carbon dioxide is conceded through this preparation to precipitate the anticipated chemical, denoted to in the business as precipitated CaCO3.
Applications :
Specification :
TYPICAL PHYSICAL DATA | |||||||
Properties | KC-1 | KC-E1 | KC-1 | KC-3 | KC-4 | KC-5 | KC-6 |
| Extra light | Medium | Light | Medium | Medium | Dense | Extra Dense |
Apparant Density (gm/ml) | 0.36-0.39 | 0.45-0.55 | 0.40-0.45 | 0.60-0.71 | 0.55-0.64 | 0.70-0.85 | 0.86-1.00 |
Surface Area by Nitrogen Absorption | 7-9 | 4.5-6.5 | 5-7 | 3-5 | 4-6 | 1.5-2.5 | 1.0-1.5 |
Specific Surface Diameter (micron) | 0.30 | 0.38 | 0.33 | 0.45 | 0.40 | 1.4 | 1.6 |
Particle Size Medium Diameter D50 | 4-5 | 5.5-6.0 | 5-6 | 8-8.5 | 5.5-6.5 | 9-11 | 11-13 |
Flow Point (ml/15 gm) | 29-32 | 22-24 | 25-28 | 16-19 | 18-22 | 13-16 | 10-13 |
Fineness % (through 45 micron min) | 99.40 | 99.70 | 99.40 | 99.50 | 99.50 | 99.70 | 99.70 |
Crystalline Habit | Aragonite | Aragonite | Aragonite | Aragonite | Aragonite | Aragonite | Aragonite |
CHEMICAL ANALYSIS | |||
Properties | Values | Properties | Values |
Colour | Bright white | Arsenic (as As) | Less than 2Ppm |
Specific gravity | 2.65-2.75 | Chloride (as Cl) | Traces |
Solution in 5N HCL | Clear | Floride (as F) | Traces |
Soluble Alkaki (Na2O) max | 0.15% | Phosphate (as PO4) max. | 0.10% |
PH | 9.3-10.3 | Sulphate (as SO4) max. | 0.16% |
Loss on Drying (at 105 c) | 0.5-0.8 | Silica (SIO2) max. | 0.05% |
Iron (as Fe) max | 0.02% | Matter insoluble in | 0.10% |
Manganese (as Mn) max | 0.003% | Hydrochloric acid max. | 0.5% |
Lead (as Pb) max | 5Ppm | Magnesia (as MgO) max. | 0.05% |
Copper (as Cu) | Negligible | Calcium Carbonate (Min) | 98.5% |
TYPICAL PHYSICAL DATA | ||
Properties | KC-11 | KC-2 |
Apparant Density (gm/ml) | 0.42-0.47 | 0.40-0.45 |
Surface Area by Nitrogen Absorption M2/g | 20-23 | 13-15 |
Specific Surface Diameter (um) | 0.11 | 0.16 |
DOP Absorption (gm/100gm) | 65-80 | 60-75 |
Fineness % (through 45 micron min) | 99.70 | 99.70 |
Crystalline Habit | Calcite | Semi-Calcite |
TYPICAL MICROBIOLOGICAL SPECIFICATIONS FOR DENTIFRICE AND PHARMA GRADES | |
Parameter | Results (As per STD) |
Total Bacterial Counts (Aerobic) | <500 CFU/gm |
Total Fungal Counts (Aerobic) | <500 CFU/gm |
Staphylococcus Aureus | Negative to tests |
Gram negative Bacilli) | Negative to tests |
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