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ProductsUltrafine wollastonite powder
Chemical name: Short fiber wollastonite
Molecular Formula: CaSiO3
Properties: Wollastonite is a calcium metasilicate mineral, white. The crystal structure is fine granular.
Uses: Mainly used in ceramics, coatings, paper, plastics, rubber and other industries.
Packing: Composite plastic woven bag 25KG/bag
|
Index Item |
Internal Control Index |
||||
|
GR-501 |
GR-503 |
GR-505 |
GR-506 |
GR-509 |
|
|
Silicon dioxide % content ≥ |
46 |
46 |
47 |
47 |
47 |
|
Calcium oxide % content ≥ |
49 |
49 |
48 |
48 |
48 |
|
Ferric oxide % ≤ |
0.25 |
0.25 |
0.20 |
0.20 |
0.20 |
|
Magnesium oxide % ≤ |
0.9 |
0.9 |
0.8 |
0.8 |
0.8 |
|
Aluminum oxide % content ≤ |
0.13 |
0.13 |
0.12 |
0.12 |
0.12 |
|
Moisture % ≤ |
0.30 |
0.30 |
0.35 |
0.35 |
0.35 |
|
Whiteness % ≥ |
91 |
92 |
93 |
93 |
93 |
|
D50 (μ m) |
20 |
15 |
8 |
5 |
2 |
|
Residue on 325mesh %≤ |
0.3 |
0.1 |
0.05 |
0.01 |
__ |
|
PH (10% suspension) |
9 |
9 |
9 |
9 |
9 |
|
Loss on ignition % |
3 |
3 |
3 |
3 |
3 |
