Potassium Aluminium Fluoride (PAF)
General Description ofPotassium Aluminium Fluoride (PAF)
Molecular Formula: KALF4 /K3ALF6
CAS NO.:14484-69-6
Melting point: 540-560℃
HS Code: 28269090.90
Size:1-3mm, 0.5-2.5cm ,0-200mm, 20, 40, 100, 200 and 325mesh
Appearance: white or light gray powder or lump
It is a commercial grade fused solid, inorganic salt.
PAF is also known as: Potassium Cryolite, Potassium Tetrafluoraluminate,
Kalium Aluminum Fluoride, KAlF, KAlF4, K3AlF6
ApplicationofPotassium Aluminium Fluoride (PAF)
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PAF is used as Magnesium removal flux in the smelting of secondary aluminium to reduce or remove the Mg from the Aluminium melts.
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It is used in the manufacture of grinding wheels (filler/binder) and other abrasive products.
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Other common applications of PAF: as the additive to roofing shingles, where it acts as an alkaline Ph adjuster and flame retardant. It can also be used as color additive in the coatings for roofing granules.
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Glass producers use the PAF for pacification or to cloud the glass giving it a milky white color.
Specifications:ofPotassium Aluminium Fluoride (PAF)
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Items
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Specification
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Grade 1
(white powder)
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Grade 2
(grey lump)
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Chemical
Compositions (%)
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F
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49-53
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49-51
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Al
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17-21
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15-19
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K
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28-33
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27-35
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SiO2
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0.2
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0.5
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Fe2O3
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0.05
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0.2
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SO4
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0.2
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0.5
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Moisture
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1
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1
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Bulk Density
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0.6-1.0g/L
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0.6-1.0g/L
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PH
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6.0-6.5
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6.0-6.5
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Package of Potassium Aluminium Fluoride (PAF)
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< 150 mm packed in big bags
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Powder 0-1 mm packed in 25 kg PP bags
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Powder 200 mesh (< 74 um) packed in big bags or in 25 kg PP bags
