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(1N8) 98% Cryolite (Sodium Aluminum Fluoride)
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(2N) 99% Cryolite (Sodium Aluminum Fluoride)
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(3N) 99.9% Cryolite (Sodium Aluminum Fluoride)
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(4N) 99.99% Cryolite (Sodium Aluminum Fluoride)
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(5N) 99.999% Cryolite (Sodium Aluminum Fluoride)
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Sodium Aluminum Fluoride (Cryolite) Properties (Theoretical)

Compound Formula Na3AlF6
Molecular Weight 209.94
Appearance White to off-white powder
Melting Point 950-1012 °C
Boiling Point N/A
Density 2.9-3.0 g/cm3
Solubility in H2O Insoluble
Refractive Index nα ~ 1.34
Exact Mass 209.941266
Monoisotopic Mass 209.941266

Sodium Aluminum Fluoride (Cryolite) Health & Safety Information

Signal Word Danger
Hazard Statements H332-H372-H411
Hazard Codes T, N
Precautionary Statements P260
Flash Point Not applicable
Risk Codes 20/22-48/23/25-51/53
Safety Statements 22-37-45-61
RTECS Number WA9625000
Transport Information UN 3077 9 / PGIII
WGK Germany 3
GHS Pictograms

About Sodium Aluminum Fluoride (Cryolite)

Cryolite (Sodium Aluminum Fluoride) is a water insoluble Sodium source for use in oxygen-sensitive applications, such as metal production. In extremely low concentrations (ppm), fluoride compounds are used in health applications. Fluoride compounds also have significant uses in synthetic organic chemistry. They are commonly also used to alloy metal and for optical deposition. Certain fluoride compounds can be produced at nanoscale and in ultra high purity forms. Cryolite (Sodium Aluminum Fluoride) is generally immediately available in most volumes. Ultra high purity and high purity compositions improve both optical quality and usefulness as scientific standards. Nanoscale elemental powders and suspensions, as alternative high surface area 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. Technical guidance for using Cryolite in agriculture is also available.

Sodium Aluminum Fluoride (Cryolite) Synonyms

Aluminum sodium fluoride, Sodium hexafluoroaluminate, Kryolite, Sodium aluminofluoroaluminate, Sodium fluoroaluminate, Kryolith, Sodium hexafluoroaluminate, Synthetic cryolite, Kryolite, AlF6Na3

Chemical Identifiers

Linear Formula Na3•AlF6
MDL Number MFCD00003507
EC No. 239-148-8
Pubchem CID 16693908
IUPAC Name trisodium; hexafluoroaluminum(3-)
SMILES F[Al-3](F)(F)(F)(F)F.[Na+].[Na+].[Na+]
InchI Identifier InChI=1S/Al.6FH.3Na/h;6*1H;;;/q+3;;;;;;;3*+1/p-6

Packaging Specifications

Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Shipping documentation includes a Certificate of Analysis and Safety Data Sheet (SDS). Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes, and 36,000 lb. tanker trucks.

Related Elements


See more Aluminum products. Aluminum (or Aluminium) (atomic symbol: Al, atomic number: 13) is a Block P, Group 13, Period 3 element with an atomic weight of 26.9815386. It is the third most abundant element in the earth's crust and the most abundant metallic element. Aluminum Bohr Model Aluminum's name is derived from alumina, the mineral from which Sir Humphrey Davy attempted to refine it from in 1812. It wasn't until 1825 that Aluminum was first isolated by Hans Christian Oersted. Aluminum is a silvery gray metal that possesses many desirable characteristics. It is light, nonmagnetic and non-sparking. It stands second among metals in the scale of malleability, and sixth in ductility. It is extensively used in many industrial applications where a strong, light, easily constructed material is needed. Elemental AluminumAlthough it has only 60% of the electrical conductivity of copper, it is used in electrical transmission lines because of its light weight. Pure aluminum is soft and lacks strength, but alloyed with small amounts of copper, magnesium, silicon, manganese, or other elements it imparts a variety of useful properties. Aluminum was first predicted by Antoine Lavoisierin 1787 and first isolated by Friedrich Wöhler in 1827.


Fluorine is a Block P, Group 17, Period 2 element. Its electron configuration is [He]2s22p5. The fluorine atom has a covalent radius of 64 pm and its Van der Waals radius is 135 pm. In its elemental form, CAS 7782-41-4, fluorine gas has a pale yellow appearance. Fluorine was discovered by André-Marie Ampère in 1810. It was first isolated by Henri Moissan in 1886.


Sodium Bohr ModelSee more Sodium products. Sodium (atomic symbol: Na, atomic number: 11) is a Block D, Group 5, Period 4 element with an atomic weight of 22.989769. The number of electrons in each of Sodium's shells is [2, 8, 1] and its electron configuration is [Ne] 3s1. The sodium atom has a radius of 185.8 pm and a Van der Waals radius of 227 pm. Sodium was discovered and first isolated by Sir Humphrey Davy in 1807. In its elemental form, sodium has a silvery-white metallic appearance. It is the sixth most abundant element, making up 2.6 % of the earth's crust. Sodium does not occur in nature as a free element and must be extracted from its compounds (e.g., feldspars, sodalite, and rock salt). The name Sodium is thought to come from the Arabic word suda, meaning "headache" (due to sodium carbonate's headache-alleviating properties), and its elemental symbol Na comes from natrium, its Latin name.


November 26, 2020
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