Implementation standard: GB/T 4291-2007
| Item/Grade |
Chemical composition (mass fraction) / %
|
|||||||||
|
≥
|
≤
|
|||||||||
|
F
|
Al
|
Na
|
SiO2
|
Fe2O3
|
P2O5
|
SO42- |
CaO
|
H2O
|
Loss on ignition
|
|
| CH-0 |
52
|
12
|
33
|
0.25
|
0.05
|
0.02
|
0.6 |
0.15
|
0.2
|
2.0
|
| CH-1 |
52
|
12
|
33
|
0.36
|
0.08
|
0.03
|
1.0 |
0.20
|
0.4
|
2.5
|
| CM-0 |
53
|
13
|
32
|
0.25
|
0.05
|
0.02
|
0.6 |
0.20
|
0.2
|
2.0
|
| CM-1 |
53
|
13
|
32
|
0.36
|
0.08
|
0.03
|
1.0 |
0.60
|
0.4
|
2.5
|
Property: Cryolite is a complex compound or double salt. Its color is white, grayish white, yellow powder or crystalline particles due to impurities. Its melting point is 1009°C, its bulk density is 0.6g-1.0g/cm3, its true density is 2.95-3.05/cm3, its heat of formation is 225KJ, its specific gravity is 2.75-3.00g/cm3, and its heat of fusion is 107KJ. It is slightly soluble in water.
Uses: Mainly used as flux for aluminum electrolysis; also used as wear-resistant additive for grinding products, which can effectively improve the wear resistance, cutting force, and service life and storage time of grinding wheels; flux for ferroalloys and boiling steel, flux for non-ferrous metals, deoxidizer for casting, catalyst for olefin polymerization, and used for glass anti-reflective coating, emulsifier for enamel, opalizing agent for glass, flux for welding materials, filler for ceramic industry, insecticide for pesticide, etc.
Packaging specifications: film-coated plastic woven bag, lined with plastic film bag, net weight of each bag 25Kg, 50Kg, 1000Kg (or packed according to customer requirements)
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