14484-69-6

Basic information

• Product Name: Potassium fluoroaluminate
• Synonyms: POTASSIUM CRYOLITE;POTASSIUM HEXAFLUOROALUMINATE;POTASSIUMALUMINIUMTETRAFLUORIDE;Potassium fluoroaluminate;potassmm aluminium fluoride;Potassium fluoroalum;PotassiuM fluoaluMinate;Aluminate(1-), tetrafluoro-, potassium, (T-4)-
• CAS NO: 14484-69-6
• Molecular Formula: AlF₄*K
• Molecular Weight: 142.07
• EINECS: 238-485-8
• Product Categories: Fluoride
• Mol File: 14484-69-6.mol
• Article Data: 12

Chemical Properties

• Melting Point: 546 °C
• Appearance: solid
• Density: 2.9[at 20℃]
• Water Solubility: 2.5g/L at 20℃
• Stability: Stable. Incompatible with strong oxidizing agents. May be moisture sensitive.
• CAS DataBase Reference: Potassium fluoroaluminate(CAS DataBase Reference)
• NIST Chemistry Reference: Potassium fluoroaluminate(14484-69-6)
• EPA Substance Registry System: Potassium fluoroaluminate(14484-69-6)

Safety Data

• Hazard Codes: Xi
• Statements: 31-36/37/38
• Safety Statements: 22-26-36/37/39-45
• WGK Germany: 1
• Hazardous Substances Data: 14484-69-6(Hazardous Substances Data)

Usage

Uses

Potassium fluoroaluminate is a useful research chemical compound.

Chemical Properties

solid

Flammability and Explosibility

Nonflammable

InChI:InChI=1/Al.FH.K/h;1H;/q+3;;+1/p-1

Synthetic route

potassium hexafluorosilicate + aluminium oxide → potassium tetrafluoroaluminate (14484-69-6) + tripotassium hexafluoroaluminate

Conditions	Yield
In solid at 500°C;

potassium hexafluorosilicate + corundum → potassium tetrafluoroaluminate (14484-69-6) + tripotassium hexafluoroaluminate + kalsilite

Conditions	Yield
In solid thermal decompn.;

aluminum trihydroxide + hydrogen fluoride (7664-39-3) + potassium carbonate (584-08-7) → potassium tetrafluoroaluminate (14484-69-6)

Conditions	Yield
In water reacting mixt. of K2CO3 in soln. with specified amt. of Al(OH)3, acidifying with excess aq. HF, drying at 100°C, annealing for 48 h; DTA anal., X-ray diffraction anal.;

aluminum oxide (1333-84-2, 1344-28-1) + potassium tetrafluoroborate (14075-53-7) → potassium tetrafluoroaluminate (14484-69-6) + tripotassium hexafluoroaluminate

Conditions	Yield
In neat (no solvent) heating (600°C, molar ratio KBF4/Al2O3 3:1 or 6:1), isothermal treatment ( 1-5 h); thermogravimetry; X-ray diffraction;

aluminum oxide (1333-84-2, 1344-28-1) + potassium tetrafluoroborate (14075-53-7) → potassium tetrafluoroaluminate (14484-69-6)

Conditions	Yield
In neat (no solvent) heating (475-600°C, molar ratio KBF4/Al2O3 2:1, 3:1 or 6:1), isothermal treatment ( 1-5 h); thermogravimetry; X-ray diffraction;

aluminum(III) fluoride (7784-18-1) + potassium fluoride dihydrate → potassium tetrafluoroaluminate (14484-69-6)

Conditions	Yield
In neat (no solvent) heating (to 400°C), isothermal treatment (0.5 h);
In water addn. of stoichiometric amt. of KF*2H2O dissolved in little H2O to AlF3(prepared from Al2O3 and 48% HF), pptn., soln. and solid digested for 1h on a steam bath; decanted, precipitate dried (open muffle furnace at 378K), fused at 933K in vitreosil crucible for 15-20min, melt cooled in desiccator;

potassium hexafluorozirconate + aluminium (7429-90-5) → potassium tetrafluoroaluminate (14484-69-6) + tripotassium hexafluoroaluminate + Al3Zr

Conditions	Yield
In neat (no solvent) Al and K2ZrF6 powders mixed (stoich. ratio), heated (air or vac., 700°C.); X-ray diffraction anal.;

potassium tetrafluoroborate (14075-53-7) + aluminium (7429-90-5) → potassium tetrafluoroaluminate (14484-69-6)

Conditions	Yield
byproducts: B; ground, mixed; evacuated (1E-2 mmHg); 200-500°C, 5-6 h; B isolated by washing (HCl, H2SO4, room temp.);

2K(1+)*H(1+)*AlF6(3-) = K2HAlF6 → potassium tetrafluoroaluminate (14484-69-6)

Conditions	Yield
In neat (no solvent, solid phase) byproducts: HF, H2O; heating at 400°C; X-ray diffraction, IR, elem. anal.;

potassium oxonium hexafluoroaluminate → potassium tetrafluoroaluminate (14484-69-6)

Conditions	Yield
In neat (no solvent) byproducts: H2O, HF; thermal decompn. at 85 - 210°C (at 85 - 140°C loss of 2 mol HF and 1,5 mol H2O, at higer temp. loss of 0.5 mol H2O);

potassium tetrafluoroaluminate hemihydrate → potassium tetrafluoroaluminate (14484-69-6)

Conditions	Yield
In neat (no solvent) byproducts: H2O; thermal decompn. 140 - 210°C;

potassium hexafluorosilicate + alumina → potassium tetrafluoroaluminate (14484-69-6) + tripotassium hexafluoroaluminate

Conditions	Yield
In solid at 500°C;

aluminum(III) fluoride + potassium fluoride → potassium tetrafluoroaluminate (14484-69-6)

Conditions	Yield
at 580℃; for 1h; Inert atmosphere;

potassium tetrafluoroaluminate (14484-69-6) → tripotassium hexafluoroaluminate

Conditions	Yield
With air In neat (no solvent, solid phase) byproducts: Al2O3; heating at 500°C; X-ray diffraction, IR;

potassium tetrafluoroaluminate (14484-69-6) + antimony pentafluoride (7783-70-2) → aluminum(III) fluoride (7784-18-1) + K(1+)*Sb2F11(1-) = KSb2F11 (771495-80-8)

Conditions	Yield
In hydrogen fluoride HF (liquid); 298 K;

Upstream product

• 1310-58-3 Potassium hydroxide 
• 21645-51-2 Aluminum hydroxide 

Downstream Products

• 144848-24-8 4H-Inden-4-one, 1-[1,5-dimethyl-5-[(triethylsilyl)oxy]hexyl]octahydro-7a-methyl-, [1R-[1α(R*),3aβ,7aα]]- 
• 144849-63-8 BISNAFIDE 
• 144850-07-7 6,9-bis{[2-(dimethylamino)ethyl]amino}benzo[g]phthalazine-5,10-dione 
• 144850-33-9 8-(5-octyl-2-oxo-2H-imidazol-4-yl)octanoic acid 
• 144850-34-0 8-(5-octyl-2-thioxo-2H-imidazol-4-yl)octanoic acid 
• 144850-43-1 5-Pyrimidinecarboxaldehyde, 1,2,3,4-tetrahydro-2-oxo-4-thioxo- (9CI) 
• 144850-45-3 (E)-4,4-dimethyl-1-(3,4-methylenedioxyphenyl)pent-1-en-3-one 
• 144850-49-7 (1E,4E)-1,5-Di(furan-2-yl)penta-1,4-dien-3-one 
• 14485-07-5 carboxyl radical 
• 144851-59-2 2-FLUORO-6-(TRIFLUOROMETHYL)BENZAMIDE 
• 144851-60-5 Benzenamine, 2-fluoro-6-(methylthio)- (9CI) 
• 144851-61-6 2-Amino-3-fluorobenzotrifluoride 
• 144851-62-7 Benzenamine, 2,6-difluoro-3-methoxy- (9CI) 
• 144851-63-8 2,6-DIFLUORO-3-METHYLANILINE 

Recommend Products

• 14484-69-6  potassium tetrafluoroaluminate 
• 1333-84-2  aluminum oxide 
• 14075-53-7  potassium tetrafluoroborate 
• 7784-18-1  aluminum(III) fluoride 
• 7429-90-5  aluminium 
• 7783-61-1  silicon tetrafluoride 
• 7789-23-3  potassium fluoride 
• 7783-70-2  antimony pentafluoride