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1250-mesh super-fine calcined kaolin
Properties: Yuejiang Brand -1250-mesh super-fine Heavy calcium carbonate, white powder, odorless, odorless. relative density 2.45~2.50, particle size 1200-mesh. Stable in the air, almost insoluble in water, insoluble in alcohols.
Specification
| Item | Index |
| Calcium carbonate content, % | ≥98.5 |
| Whiteness, % | ≥96 |
| Water content, % | ≤0.3 |
| Silicon dioxide content, % | ≤0.02 |
| Iron content, % | ≤0.01 |
| Hcl insolubles, % | ≤0.10 |
| pH-value | 8-9 |
| 105¡ãC volatile matter, % | ≤0.4 |
| Loss on ignition, % | 43.4 |
| Coefficient of linear expansion | 9¡Á10-6 |
| D90 particle size, μm | 10.50 |
| Mid-position particle size, μm | 3.21 |
| Cutting particle size, μm | 22.4 |
| specific surface area, m2 | 4.49 |
| True specific weight, g/ml | 2.7 |
| Apparent density, g/ml | 1.7 |
| Subside volume, g/ml | 18 |
| Oil absorption, ml/100g | 20 |
| Water absorption, ml/100g | 0.49 |
| Dop absorption, ml/100g | 25 |
| Hardness, Mohs | 3.0 |
Use:
widely used in paints, printing ink, coatings, plastic, rubber, ceramics, glass, electronics, cosmetics, pharmacy and food etc.
Packing:
25kg /bag, in woven bag lined with plastic bag, or upon client's request.
