Potassium Fluoroaluminate KALF4 is also konw as elpasolite,It is white or grey-white crystal powder.
Potassium Fluoroaluminate is also konw as elpasolite,it is widely use as aluminium alloy flux and welding agent.
It can react with water to release hydrogen fluoride at high temperature ,or can be slowly dissolved in strong acid to release hydrogen fluoride.
Potassium Fluoroaluminate Index
Potassium Fluoroaluminate |
||
Character |
Molecular Formula |
KALF4 |
|
Molecular Weight |
258.28 |
|
Appearance |
Grey powder |
|
Water solubility |
Slightly soluble in water |
|
Melting point |
560-580 degree |
Chemical Component |
F |
48.12% |
|
Al |
18.07% |
|
K |
26.21% |
|
Fe2O3 |
0.12% |
|
H2O |
0.50% |
Size |
-10mesh |
1.80% |
|
-10 -- +25 mesh |
20.00% |
|
-25 -- 200 mesh |
the remaining |
Mesh size: 20, 40, 100, 200 and 325mesh are available.
Items |
Specification |
Grade1(White Powder) |
Grade 2(Gray Lumps) |
Chemical Compositions (%) |
F,% |
49-53 |
49-51 |
Al,% |
17-21 |
15-19 |
|
K,% |
28-33 |
27-35 |
|
SiO2,% |
0.2 |
0.5 |
|
Fe2O3,% |
0.05 |
0.2 |
|
SO4,% |
0.2 |
0.5 |
|
Moisture,% |
1 |
1 |
|
Bulk Density |
0.6-1.0 g/l |
/ |
|
PH |
6.0-6.5 |
/ |
1. welding agent;
2. glass and ceramic industry;
3. ceramic industry filler;
4. grinding wheel additive;
5. aluminum or aluminum alloy.
1.Used as welding flux in aluminum alloy and stainless steel,
2. Used as a degasser and an auxiliary solvent in aluminum alloy fabrication,
3. Used as an active filler for glass, ceramic and friction compound
4. Used as a raw material of Pesticide.
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