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Quick Details

Classification: Other Inorganic Salts
Purity: 99%
CAS No.: 14484-69-6

Specifications

Chemical Name: Potassium fluoroaluminate, Potassium tetrafluoroaluminate, Potassium Cryolite, Kalium Aluminium Fluorid,KAlF, KAlF4, K3AlF6
Product Description

Potassium aluminum fluoride is a complex fluoride salt of potassium and aluminium. It does not have a specific chemical formulae. It is a mixture of following salts:K3AlF6 and KAlF4.

Properties: white or grey-white color, Molecular rate near 1.2, melting point 560℃
Solubility in 1000g water:  at 0℃: 0.8g; at 25℃: 1.42g, at 100℃: 4.58g.
Chemical Formula:AlF4K
Molecular Weight:142g/mol
Chemical Formula:AlF4K 
EC No.:238-485-8


Recommended use:Welding and soldering agent,abrasive additive


Potassium Cryolite

Chemical Content

F

Al

K

Fe2O3

SO4

H2O

Super grade

50-52

17-18

29-32

0.01%max

0.05%max

1.2%max

I grade

49-51

17-18

28-32

0.1%max

0.6%max

II grade

45-51

15-19

27-35

1.0%max

Usual Grain Size: 20mesh,40mesh,100mesh,200mesh,325mesh,other size can be made as customer's special request


Main Application:

1.Potassium Aluminum fluoride is used as fluxing agentin the smelting of secondary aluminium to maximize metal recovery, to remove the magnesium content of liquid aluminium alloys.
2.Potassium fluoroaluminate can used as brazing flux in aluminum alumium alloy and stainless steelt.
3.Potasium Cryolite cam sed as additive agent for produce grinding wheels or other abrasive products.
4.KAlF4 is a common additive to roofing shingles as an alkaline Ph adjuster and as color additive to coatings 
5.Glass producers use the PAF for opacification, or to cloud the glass giving it a milky white color. 
6.Used as an insecticide