UGHIMPROM LLC brings to your attention chemically precipitated chalk produced by precipitation with carbon dioxide, lime milk.
Production Republic of Uzbekistan.
It is used in the production of paint and varnish materials to reduce the cost of raw materials, improve the mechanical properties of paint, increase the shelf life of materials.
Main Features:
- Higher stability, uniform granulometric composition
- Uniform distribution of particles on the surface, absence of agglomerates
- Increase in whitening and covering capacity
- Improvement of the mechanical properties of coatings
- Use as a rheological additive
| THE NAME OF THE INDICATOR | Standard | Chemically precipitated chalk |
|---|---|---|
| Whiteness, %, not less | 93,0 | 96,0 |
| Mass fraction of CaO and MgO in terms of CaO, %, no more | 98,5 | 98,5 |
| Mass fraction of free alkali in terms of calcium oxide, %, no more | 0,03 | 0,03 |
| Mass fraction of substances insoluble in hydrochloric acid HCI, %, no more , including the mass fraction of sand (SiO2), %, no more |
0,1 0,014 |
0,1 0,013 |
| Mass fraction of one and a half oxides of iron and aluminum, %, no more , including the mass fraction of iron in terms of Fe2O3, %, no more |
0,4 0,1 |
0,38 0,08 |
| Mass fraction of manganese (Mg), %, max | 0,01 | 0,01 |
| Mass fraction of copper(Cu), %, max | 0,0005 | 0,0004 |
| Mass fraction of moisture, %, no more | 0,5 | 0,2 |
| The remainder after sieving on a sieve with mesh No. 0045K according to GOST 6613-86, %, no more | 0,4 | 0,3 |
| Density (ml/g), not less | 2,5 | 3,0 |
| Chemical environment Ph | 8,0-11,0 | 8,0-10,0 |
| Active mass fraction of CaCO3, %, not less | 90,0 | - |
| Dop. absorption (ml/100 g), %, max | 31,0 | - |