1. Names and Identifiers

1.1 Namecryolite1.2 Synonyms

Aluminate(3-), hexafluoro-, sodium (1:3)ALUMINUM SODIUM FLUORIDEARTIFICAL CRYOLITECRYOLITE, NA3ALF6CRYOLITE, SYNTHETICEINECS 239-148-8hexafluoroaluminate(3-) de trisodiumKryoliteKRYOLITHMFCD00003507Na3AlF6Sodium aluminofluoroaluminateSODIUM FLUOROALUMINATESodium hexafluoroaluminate (Cryolite)trisodium hexafluoridoaluminatetrisodium hexafluoroaluminate(3)Trisodium hexafluoroaluminate(3-)trisodium,hexafluoroaluminum(3-)

1.3 CAS No.15096-52-3

1.4 CID16693908

1.5 EINECS(EC#)239-148-8

1.6 Molecular FormulaAlF6Na3 (isomer)

1.7 InchiInChI=1S/Al.6FH.3Na/h;6*1H;;;/q+3;;;;;;;3*+1/p-6

1.8 InChIkeyREHXRBDMVPYGJX-UHFFFAOYSA-H

1.9 Canonical SmilesF[Al-3](F)(F)(F)(F)F.[Na+].[Na+].[Na+]

1.10 Isomers SmilesF[Al-3](F)(F)(F)(F)F.[Na+].[Na+].[Na+]

2. Properties

2.1 Density2.9 g/mL at 25ºC(lit.)

2.1 Melting point1000ºC

2.1 Boiling pointdecomp

2.1 Refractive indexIndex of refraction: 1.338

2.1 formColorless, crystalline solid

2.2 Precise Quality209.94100

2.2 PSA0.00000

2.2 logP2.52120

2.2 Solubility0.04 % (NIOSH, 2016)

2.3 Appearancewhite powder

2.4 Chemical PropertiesSodium aluminum fluoride is a snow-white crystalline solid, powder or vitreous mass. The crystalline solid (natural product (cryolite) may be colored reddish or brown or even black but loses this discoloration on heating); synthetic product is an amorphous powder. Odorless

2.5 DecompositionWhen heated to decomposition it emits toxic fumes of /fluorides and disodium oxide/.

2.6 Heat of Vaporization225 kJ/mol at 1012 °C

2.7 OdorOdorless.

2.8 Water Solubility0.04 % (NIOSH, 2016)

2.9 StabilityLow melting solids or colorless, volatile liquids. /Alkylaluminum halides/

2.10 StorageTemp2-8°C

2.11 Surface TensionLiquid in air, 125 mN/m (= dyn/cm)

3. Use and Manufacturing

3.1 Agricultural UsesInsecticide: Sodium aluminum fluoride is used as an insecticide on food crops and ornamentals, and also in aluminum refining and making ceramics, glass and polishes. Cryolite is used to control a variety of pests on cucurbits (melons, cantaloupe, water melon, pumpkins, all types of squash), fruiting vegetables (eggplant, pepper, broccoli, Brussels sprouts, cabbage, cauliflower, collards, head and leaf lettuce, kohlrabi), kiwi (in California only), pears, radish, cranberry and peaches, grapefruit, lemon, lime, orange, tangelo, tangerines, tomatoes, apples, potatoes, beans and grapes. Also on ornamental plants, woody shrubs and vines. Not listed for use in EU countries. Registered for use in the U.S

3.2 DefinitionA natural fluoride of sodium and aluminum or madesynthetically from fluorspar, sulfuric acid, hydratedalumina, and sodium carbonate.

3.3 Potential ExposureSodium aluminum fluoride is used in making pesticides, ceramics, glass, and polishes; in refining reduction of aluminum, flux, glass, and enamel.

3.4 ShippingUN3077 Environmentally hazardous substances, solid, n.o.s., Hazard class: 9; Labels: 9-Miscellaneous hazardous material, Technical Name Required.

3.5 UsageElectrolyte in the reduction of alumina to aluminum; ceramics; insecticide; binder for abrasives;electric insulation; explosives; polishes.

3.6 Waste DisposalIn accordance with 40CFR 165 recommendations for the disposal of pesticides and pesticide containers. Must be disposed properly by following package label directions or by contacting your local or federal environmental control agency, or by contacting your regional EPA office. cryolite Preparation Products And Raw materials Raw materials