Synthetic Cryolite/Sodium Aluminum Fluoride
FORMULA:Na3AlF6 Molecular weight: 209.94 Danger level:6.1
H.S Code:2826.3000
Properties:
Synthetic Cryolite is a white crystaline powder or a sandy-size granularity,and a pinkish crystaline powder or a sandy-size ranularity as well.Sp,gr 2.95--3.01g/cm3 about 1000centigrade specific heat 1.056j/gcentigradeat 18-100cendtigrade.
It's slightlly soluble in water,but insoluble in anhydrous hydogen fluoride.The content of its crystal water will be decreased while the increasing of the molecular ratio,therefore its loss on ignition will be also decreased while the increasing of the molecular ratio.After the oaste of synthetic cryolite with different molecular ratio dehydrates,the loss on ignition at 800 centigrade will appear 10.34%,6.22% when the molecular ratio reaches 1.74,2.14 and 2.63 reactively.
Uses:
It's mainly used as a flux in the aluminum smelting by fused-sail electrolysis;Also an opalizer in the manufacture of enamel;An opacifier and auxliary solvent of glass and enamel;An insecticide of crops;A flux in aluminum alloy casting;And in the production of ferrous alloy and effervescing steel;As well as a wear-resistand filler for resin and rubber-boned abrasive wheels.
Specification :
|
grade
|
chemical composition/%
|
Physical character/%
|
||||||||
|
F
%≥
|
Al%≥
|
Na%≤
|
H2O
≤ |
SiO2
%≤ |
Fe2O3
%≤
|
SO42-
%≤ |
P2O5
%≤ |
CaO%≤
|
LOI
≤ |
|
|
CH-0
|
52
|
12
|
33
|
0.20
|
0.25
|
0.05
|
0.6
|
0.02
|
0.15
|
2.0
|
|
CH-1
|
52
|
12
|
33
|
0.40
|
0.36
|
0.08
|
1.0
|
0.03
|
0.20
|
2.5
|
|
CM-0
|
53
|
13
|
32
|
0.20
|
0.25
|
0.05
|
0.6
|
0.02
|
0.20
|
2.0
|
|
CM-1
|
53
|
13
|
32
|
0.40
|
0.36
|
0.08
|
1.0
|
0.03
|
0.60
|
2.5
|