SODIUM HEXAFLUOROALUMINATE

SODIUM HEXAFLUOROALUMİNATE = CRYOLITE

CAS Number: 13775-53-6
EC Number: 237-410-6
Chemical formula: Na3AlF6
Molar mass: 209.94 g/mol

Sodium hexafluoroaluminate is a biochemical for proteomics research.
Sodium hexafluoroaluminate is used as a flux agent or bath material by aluminum smelters in the production of aluminum.
Sodium hexafluoroaluminate is also used in the production of synthetic resins for abrasives and in the manufacture of cutting or grinding discs.
Minor uses are as a coloring agent (opacifier) in the glass, ceramic and pyrotechnic industries.
Sodium hexafluoroaluminate occurs naturally as the mineral cryolite, which is used extensively in the industrial production of aluminium.

Sodium aluminium hexafluoride is an inorganic compound with formula Na₃AlF₆.
This white solid, occurs naturally as the mineral cryolite and is used extensively in the industrial production of aluminium metal.
The compound is the sodium salt of the hexafluoroaluminate ion.

Sodium aluminium hexafluoride is an inorganic compound with formula Na3AlF6.
This white solid, discovered in 1799 by Peder Christian Abildgaard (1740–1801), occurs naturally as the mineral cryolite and is used extensively in the industrial production of aluminium metal.
The compound is the sodium (Na+) salt of the hexafluoroaluminate (AlF63−) ion.

Sodium aluminium hexafluoride is an inorganic compound with formula Na3AlF6.
The mineral form of sodium hexafluoroaluminate, which is called cryolite  Sodium hexafluoroaluminate is a biochemical for proteomics research.
Sodium hexafluoroaluminate is also used in the production of  synthetic resins for abrasives and in the manufacture of cutting or grinding discs

Sodium aluminum hexafluoride is used as a solvent (or flux) for electrolysis aluminum oxides such as bauxite, whitener for enamels and an opacifier for glass and in the industrial production of aluminum.

This Thermo Scientific brand product was originally part of the Alfa Aesar product portfolio.
Some documentation and label information may refer to the legacy brand.
The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific.

Sodium Hexafluoroaluminate is generally immediately available in most volumes.
High purity, submicron and nanopowder forms may be considered.
American Elements produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM testing standards.
Typical and custom packaging is available.
Additional technical, research and safety (MSDS) information is available as is a Reference Calculator for converting relevant units of measurement.

Sodium hexafluoroaluminate is a chemical compound of sodium, fluorine, and aluminum that occurs naturally as the mineral cryolite.
Sodium hexafluoroaluminate is used in the production of insecticides, in the glass and enamel industries, as well as being a solvent for bauxite in the electrolytic manufacture of aluminium.
Aluminum is the most abundant metal in the earth's crust and is always found combined with other elements such as oxygen, silicon, and fluorine.

Sodium hexafluoroaluminate is also called cryolite, which molecular formula is Na3AlF6.
With excellent properties, Sodium hexafluoroaluminate is not only an indispensable co-solvent in the aluminum smelting industry, but also widely used in other industries, such as opalizers in the enamel industry, opacifiers in the glass industry, and wear-resistant fillers in the rubber and grinding wheel industries.

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Sodium hexafluoroaluminate was historically used as an ore of aluminium and later in the electrolytic processing of the aluminium-rich oxide ore bauxite (itself a combination of aluminium oxide minerals such as gibbsite, boehmite and diaspore).
The difficulty of separating aluminium from oxygen in the oxide ores was overcome by the use of cryolite as a flux to dissolve the oxide mineral(s).
Pure cryolite itself melts at 1012 °C (1285 K), and Sodium hexafluoroaluminate can dissolve the aluminium oxides sufficiently well to allow easy extraction of the aluminium by electrolysis.
Substantial energy is still needed for both heating the materials and the electrolysis, but Sodium hexafluoroaluminate is much more energy-efficient than melting the oxides themselves.
As natural cryolite is too rare to be used for this purpose, synthetic sodium aluminium fluoride is produced from the common mineral fluorite.

Cryolite occurs as glassy, colorless, white-reddish to gray-black prismatic monoclinic crystals.
Sodium hexafluoroaluminate has a Mohs hardness of 2.5 to 3 and a specific gravity of about 2.95 to 3.0.
Sodium hexafluoroaluminate is translucent to transparent with a very low refractive index of about 1.34, which is very close to that of water; thus if immersed in water, cryolite becomes essentially invisible.

Cryolite was first described in 1799 by Danish veterinarian and physician Peder Christian Abildgaard (1740-1801); Sodium hexafluoroaluminate was obtained from a deposit of Sodium hexafluoroaluminate in Ivigtut and nearby Arsuk Fjord, Southwest Greenland.
The name is derived from the Greek language words κρνος (cryos) = ice, and λιθος (lithos) = stone.
The Pennsylvania Salt Manufacturing Company used large amounts of cryolite to make caustic soda at Sodium hexafluoroaluminates Natrona, Pennsylvania works during the 19th and 20th centuries.

Due to Sodium hexafluoroaluminates rarity Sodium hexafluoroaluminate is possibly the only mineral on Earth ever to be mined to commercial extinction.

Cryolite is used as an insecticide and a pesticide.
Sodium hexafluoroaluminate is also used to give fireworks a yellow color.
Molten cryolite is used as a solvent for aluminium oxide (Al2O3) in the Hall–Héroult process, used in the refining of aluminum.

Synthetic cryolite is a white crystalline powder manufactured from hydrofluoric acid, sodium carbonate, and aluminium.
Synthetic cryolite is used chiefly as a flux in the electrolytic production of aluminum as Sodium hexafluoroaluminate effectively lowers down the melting point of alumina.
Sodium hexafluoroaluminate is used in the glass and enamel industries, in bonded abrasives as a filler, in making salts of sodium and aluminum and porcelaneous glass and in the manufacture of insecticides.
Cryolite is a relatively safe fruit and vegetable insecticide.
The fluoride ion inhibits many enzymes that contain iron, calcium, and magnesium.

Cryolite is a white or colorless mineral form of sodium aluminofluoride, which crystallizes in the monoclinic system but has a pseudocubic aspect; found in masses of waxy luster; hardness is 2.5 on Mohs scale, and specific gravity is 3.0.
The powder becomes almost invisible in water due to Sodium hexafluoroaluminates low refractive index.
Sodium hexafluoroaluminate is mined in significant quantities in Greenland ( so also known as Greenland spar; ice stone), and in small amounts in elsewhere.

Synthetic cryolite is manufactured from hydrofluoric acid, sodium carbonate, and aluminium.
Synthetic cryolite is used chiefly as a flux in the electrolytic production of aluminum from bauxite as Sodium hexafluoroaluminate effectively lowers down the melting point of alumina.
Sodium hexafluoroaluminate is used in the glass and enamel industries, in bonded abrasives as a filler, in making salts of sodium and aluminum and porcelaneous glass and in the manufacture of insecticides.

Cryolite is a relatively safe fruit and vegetable insecticide.
The fluoride ion inhibits many enzymes that contain iron, calcium, and magnesium.
Several of these enzymes are involved in energy production in cells, as in the case of phosphatases and phosphorylases.

An odorless white solid or powder.
mp: 1291°C.
Density: 2.95 g/cm3.
Dust irritates the eyes and skin; inhaled dust irritates the nose, mouth and lungs.
Insoluble in water.
Synthesized by fusion of sodium fluoride and aluminum fluoride as a electrolyte in the reduction of alumina to aluminum metal.
Occurs in nature as the mineral cryolite.
Aqueous suspensions of powdered sodium aluminum fluoride are used as insecticides.

Preparation of Sodium hexafluoroaluminate:
Cryolite is produced by reacting sodium hydroxide with aluminium oxide and hydrofluoric acid.
6 NaOH + Al2O3 + 12 HF → 2 Na3AlF6 + 9 H2O
Cryolite precipitates out of the solution, due to Sodium hexafluoroaluminates very low solubility in water.

Production of Sodium hexafluoroaluminate:
Most cryolite is manufactured by a variety of related pathways.
One route entails combining sodium aluminate and hydrofluoric acid:
Na3Al(OH)6 + 6 HF → Na3AlF6 + 6 H2O

Often the hexafluorosilicic acid, which is recovered from phosphate mining, is the precursor in a two-step process beginning with neutralization with ammonia to give ammonium hexafluorosilicate:
H3AlF6 + 3 NH3 → (NH4)3AlF6
(NH4)3AlF6 + 3 NaOH → Na3AlF6 + 3 NH3 + 3 H2O

The mineral form of sodium hexafluoroaluminate, which is called cryolite, was mined at Ivigtût on the west coast of Greenland until the deposit was depleted in 1987.

Solubility of Sodium hexafluoroaluminate:
Cryolite is poorly soluble in water.
The LD50 is 600 mg/kg for the comparable compound aluminium trifluoride.

Handling of Sodium hexafluoroaluminate:

Safety of Sodium hexafluoroaluminate:
Sodium hexafluoroaluminate has relative low toxicity.
Sodium hexafluoroaluminate is often used as roach killer.

Storage of Sodium hexafluoroaluminate:
Cryolite doesn't require special storage conditions.
Any clean plastic bottle can be used as storage container.

Disposal of Sodium hexafluoroaluminate:
Cryolite doesn't require special disposal.
Can be dumped in the trash.

Use of Sodium hexafluoroaluminate:
The main application of synthetic cryolite is as a solvent (or flux) for electrolysis of aluminium oxides such as bauxite.
The conversion of aluminium oxides into metallic aluminium requires that the metal ions be dissolved so that they can accept the electrons provided in the electrolysis cell.
A mixture of cryolite and some aluminium trifluoride is used as that solvent.

Unlike typical solutions, this one requires temperatures approaching 1000 °C to melt.
Sodium aluminium hexafluoride is also used as a pesticide.
Other uses include a whitener for enamels and an opacifier for glass.

Application of Sodium hexafluoroaluminate:
Sodium hexafluoroaluminate is mainly used as a flux for aluminum electrolysis, and also as a wear-resistant additive for grinding products, which can effectively improve the wear-resistant cutting force of the grinding wheel and prolong Sodium hexafluoroaluminates service life and storage time.
Sodium hexafluoroaluminate is a flux for ferroalloy and boiling steel, non-ferrous metals and soldering materials, a deoxidizer for casting, a catalyst for olefin polymerization, and an anti-reflective coating and opacifierfor glass, an emulsifier for enamel, a filler for ceramic industry, and a pesticide for agriculture, etc.

The main application of synthetic cryolite is as a solvent (or flux) for electrolysis of aluminium oxides such as bauxite.
The conversion of aluminium oxides into metallic aluminium requires that the metal ions be dissolved so that they can accept the electrons provided in the electrolysis cell.
A mixture of cryolite and some aluminium trifluoride is used as that solvent.

Availability of Sodium hexafluoroaluminate:
Sodium hexafluoroaluminate is sold by various chemical suppliers.
Can also be bought online.
Natural cryolite can be found in various parts of the world, such as Greenland or several US states.

The requirements for sodium hexafluoroaluminate
Sodium hexafluoroaluminate is rarely produced in nature and is usually manufactured artificially.
Sodium hexafluoroaluminates consumption in the aluminum industry is large, and the annual consumption in the world is about 700,000 tons.
As a flux for electrolytic aluminum smelting, Sodium hexafluoroaluminate must meet certain requirements in terms of sodium to aluminum molecular ratio, impurity content, and water content.

The ratio of sodium to aluminum in cryolite should be as high as possible.
The higher the molecular ratio, the higher the current efficiency of electrolytic aluminum smelting, the less fluorine loss, and the less environmental pollution Sodium hexafluoroaluminate causes.
Moreover, sodium hexafluoroaluminate with high molecule ratio is more suitable for use in industries other than the aluminum industry.

The content of impurities such as silicon oxide, iron oxide and phosphorus pentoxide in cryolite is low.
These impurities will directly affect the quality of aluminum ingots and the current efficiency of aluminum smelting.

The water content of sodium hexafluoroaluminate should be as low as possible.
Water will increase the consumption of cryolite.

Properties of Sodium hexafluoroaluminate:

Chemical of Sodium hexafluoroaluminate:
Molten cryolite will dissolve aluminium oxide and the electrolysis of this mixture will give aluminium metal.
Cryolite is mostly inert to most reagents and oxidizers.

Physical of Sodium hexafluoroaluminate:
Sodium hexafluoroaluminate is a white solid, insoluble in water or other solvents.

Identifiers of Sodium hexafluoroaluminate:
CAS Number: 13775-53-6
ChEBI: CHEBI:39289
UNII: 5ZIS914RQ9
CompTox Dashboard (EPA): DTXSID90872955
InChI:
InChI=1S/Al.6FH.3Na/h;6*1H;;;/q+3;;;;;;;3*+1/p-6
Key: REHXRBDMVPYGJX-UHFFFAOYSA-H

InChI=1/Al.6FH.3Na/h;6*1H;;;/q+3;;;;;;;3*+1/p-6/rAlF6.3Na/c2-1(3,4,5,6)7;;;/q-3;3*+1
Key: REHXRBDMVPYGJX-ZWHJLPLDAC
SMILES: [Na+].[Na+].[Na+].F[Al-3](F)(F)(F)(F)F

Quality Level: 100
assay: 97%
form: powder
reaction: suitability
reagent type: catalyst
core: aluminum
density: 2.9 g/mL at 25 °C (lit.)
SMILES string: F[Al](F)(F)(F)(F)(F)([Na])([Na])[Na]
InChI: 1S/Al.6FH.3Na/h;6*1H;;;/q+3;;;;;;;3*+1/p-6
InChI key: REHXRBDMVPYGJX-UHFFFAOYSA-H

Properties of Sodium hexafluoroaluminate:
Chemical formula: Na3AlF6
Molar mass: 209.94 g/mol
Appearance: white powder
Density: 2.9 g/cm3, solid
Melting point: 950 °C (1,740 °F; 1,220 K)
Boiling point: decomposes
Solubility in water: 0.04% (20°C)
Vapor pressure: essentially 0

CAS Number: 13775-53-6
Molecular Weight: 209.94
EC Number: 237-410-6
MDL number: MFCD00003507
NACRES: NA.23

Names of Sodium hexafluoroaluminate:

Other names of Sodium hexafluoroaluminate:
Sodium fluoroaluminate
Cryolite
Kryolite
Aluminate(3-)
Hexafluoro-
Trisodium
(OC-6-11)-

Synonyms of Sodium hexafluoroaluminate:
Cryolite
Aluminate(3-), hexafluoro-, trisodium (8CI)
Villiaumite
Sodium aluminum hexafluoride
Trinatriumhexafluoraluminate(3-)
synthetic cryolite
aluminate(3-), hexafluoro-, sodium (1:3)
Trisodium hexafluoroaluminate(3-)
trisodium aluminum hexafluoride
sodium aluminum fluoride
aluminum sodium fluoride
cryolite, synthetic

Aluminate(3-), hexafluoro-, sodium (1:3), (OC-6-11)-
Aluminate(3-), hexafluoro-, trisodium
Aluminum sodium fluoride (Na3AlF6)
Aluminum sodium fluoride (Na3AlF6)
Aluminum sodium hexafluoride (AlNa3F6)
Aluminum sodium hexafluoride (AlNa3F6)
Aluminum trisodium hexafluoride
Hexafluoroaluminate de trisodium
Hexafluoroaluminato De Trisodio
Sodium Hexafluoroaluminate
Sodium aluminum fluoride
Sodium aluminum hexafluoride
Sodium fluoaluminate(3-)
Sodium fluoroaluminate (Na3AlF6)
Sodium fluoroaluminate (Na3AlF6)
Sodium hexafluoroaluminate (Na3AlF6)
Sodium hexafluoroaluminate (Na3AlF6)
Sodium hexafluoroaluminate(3-)
Trinatriumhexafluoraluminat
Trisodium Hexafluoroaluminate
Trisodium Hexafluoroaluminate(3-)
Trisodium aluminum hexafluoride
Cryolite
Kryolite
Sodium aluminium hexafluoride
Sodium fluoroaluminate
Trisodium hexafluoroaluminate

CRYOLITE
Sodium hexafluoroaluminate
15096-52-3
13775-53-6
Aluminum trisodium hexafluoride
sodium hexafluoroaluminate(III)
trisodium;hexafluoroaluminum(3-)
MFCD00003507
AlF6.3Na
UNII-5ZIS914RQ9
Na3AlF6
Sodium aluminium fluoride
Na3[AlF6]
Aluminum sodium hexafluoride
trisodium hexafluoridoaluminate
sodiumhexafluoroaluminate(III)
5ZIS914RQ9
CHEMBL3988899
CHEBI:39289
sodium hexafluoridoaluminate(3-)
Sodium hexafluoroaluminate, 97%
trisodium hexafluoroaluminum(3-)
sodium hexafluoridoaluminate(III)
trisodium hexafluoroaluminate(3-)
5473AF
AKOS025310262
trisodium hexakis(fluoranyl)aluminum(3-)
Chromium Boride (Cr2B) Sputtering Targets
Cryolite, synthetic, >=97.0% (from F)
FT-0624109
C18816
trisodium (OC-6-11)-hexafluoroaluminate(3-)
A809094
Q927885
J-008762
Aluminate(3-), hexafluoro- trisodium, (OC-6-11)-
Sodium hexafluoroaluminate, 99.98% trace metals basis
Cryolite,naturallyoccurringmineral,grains,approximately0.06-19in