The physical and chemical properties: Yuanjiang Brand - the chemical composition of talcum powder for Mg3 (Si4O10) (OH) 2.Is a white, milky white or light gray, pearls or fat glossy flake or flaky powder.Structure has a layered structure, between the adjacent two layers and are prone to slip or fall off each other, and a soft soapy, and hard degree of the youngest, 1.0 mohs.Different directions in the specific gravity of 2.8, crystal refractive index were 1.539, 1.589 and 1.589.
Purpose: yuan jiang card - talcum powder, widely used in paint, printing ink, paint, plastic, rubber, ceramic, glass, electronics, cosmetics, medicine, food and other fields.
A, product technical indicators
|
project |
indicators |
|
Silica content, % |
58.0 + / - 2.0 |
|
Magnesium oxide content, % |
28.0 + / - 2.0 |
|
Calcium oxide content, % |
1.8 ≤ |
|
Moisture, % |
0.5 ≤ |
|
PH |
9.0 to 9.5 |
|
Ignition loss, % |
8.0 ≤ |
|
whiteness |
P 89 |
|
45 microns screenings, |
0.5 ≤ |
|
D97 particle size, mu m |
44.5 to 45.5 |
|
Oil absorption, g / 100 g |
25 to 35 |
|
Fineness, orders, |
1250 |
|
