Reagent Grade Synthetic Cryolite Granul Powder For Abrasive Cryolite powder
CAS Registry Number:
15096-52-3;1344-75-8;13775-53-6;12397-51-2
Molecular Formula:
Na
3
AlF
6
Molecular Weight:
209.9402
Quality Standard :
GB/T4291-2007
Specifications:
Items
Class
|
Chemical Composition ( Concentration )/ %
|
Not less than
|
Not more than
|
F
|
Al
|
Na
|
SiO
2
|
Fe
2
O
3
|
SO
4
=
|
CaO
|
P
2
O
5
|
H
2
O
|
Loss on ignition
, 550ºC30min
|
CH-0
|
52
|
12
|
33
|
0.25
|
0.05
|
0.6
|
0.15
|
0.02
|
0.20
|
2.0
|
CH-1
|
52
|
12
|
33
|
0.36
|
0.08
|
1.0
|
0.20
|
0.03
|
0.40
|
2.5
|
CM-0
|
53
|
13
|
32
|
0.25
|
0.05
|
0.6
|
0.20
|
0.02
|
0.20
|
2.0
|
CM-1
|
53
|
13
|
32
|
0.36
|
0.08
|
1.0
|
0.60
|
0.03
|
0.40
|
2.5
|
Size distribution
Granular
|
0-10 mm
|
Sandy
|
80 mesh
|
Powder
|
200 mesh, 325mesh
|
Physical properties:
Cryolite is a kind of complex compound or double salt. Caused by impurity, the appearance can be white, gray ,yellow powder or crystalline particles. It's melting point is 1025ºC, stacking density is 0.6-1.0g/L, true density is 2.95-3.05g/cm 3 , heat of formation is 225KJ, specific gravity is 2.75-3.00g/cm 3 , heat of fusion is 107KJ. Slightly solubte in water.
Packing:
In 25kgs PP bags, Lined with high-pressure plastic film, or according to customer's requirements
.
Applications
Aluminium- metallurgy: as component of fluxing agents, protective and refining salts;
Production of abrasives: as active filler in resinbonded abrasives for metal treatment;
Production of enamel, glazing frits and glass: as flux and opacifying agent;
Production of soldering agent: as component for fluxing agents;
Production of welding agents: as component of welding rod coatings and welding powders;
Blasting and pyrotechnics: for fireworks;
Metal surface treatment: as component in pickling pastes for stainless steel.