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Synthetic cryolite is also called sodium fluoroaluminate,cryolite ,kryolite,
aluminum sodium fluoride .Synthetic cryolite is the inorganic compound with the
formula Na3AIF6 . This white solid, discovered by theBrazilian José Bonifácio de
Andrada e Silva, occurs naturally as the mineral cryolite and is used extensively in
the industrial production of aluminium metal. The compound consists of the sodium
(Na+) salt of hexafluoroaluminate (AlF63−).Most cryolite is manufactured from
aluminium oxides, hydrofluoric acid, and sodium hydroxide or the equivalent
reagent hexafluorosilicic acid:6 NaOH + Al2O3 + 12 HF → 2 Na3AlF6 + 9 H2OIt
was mined as cryolite at Ivigtût on the west coast of Greenland, until the deposit
was depleted in 1987.Cryolite is poorly soluble in water, which mitigates problems.
The LD50 = 600 mg/kg for the comparable compound aluminium trifluoride.
►Descriptors of Structure
Smiles: [Al+3]([F-])([F-])([F-])([F-])([F-])[F-].[Na+].[Na+].[Na+]
InChI: InChI=1S/Al.6FH.3Na/h;6*1H;;;/q+3;;;;;;;3*+1/p-6
InChIKey: REHXRBDMVPYGJX-UHFFFAOYSA-H
Canonical SMILES: F[Al-3](F)(F)(F)(F)F.[Na+].[Na+].[Na+]
►Safety
Cryolite is poorly soluble in water, which mitigates problems. The LD50 =
600mg/kg for the comparable compound aluminium trifluoride.
►Properties:
(1)H-Bond Donor: 0; (2)H-Bond Acceptor: 7;
(3)Rotatable Bond Count: 0; (4)Exact Mass: 209.941266;
(5)MonoIsotopic Mass: 209.941266; (6)Topological Polar Surface Area: 0;
(7)Heavy Atom Count: 10; (8)Formal Charge: 0;
(9)Complexity: 62.7; (10)Isotope Atom Count: 0;
(11)Defined Atom Stereocenter Count: 0;
(12)Undefined Atom Stereocenter Count: 0;
(13)Defined Bond Stereocenter Count: 0;
(14)Undefined Bond Stereocenter Count: 0;
(15)Covalently-Bonded Unit Count: 4
Macro molecule
| Na3AlF6 | Item
| Specification |
| Na3AlF6
| 98% | |
| F
| 53.5% | |
| Al
| 13.8% | |
| Na
| 31.2% | |
| SiO2
| 0.28% | |
| Fe2O3
| 0.03% | |
| SO4
| 0.01% | |
| Hygroscopic moisture
| 0.17% | |
| Cauterant decrease
| 1.85% | |
| Molecular proportion
| 2.65% |
Low molecule
| Na3AlF6 | Item
| Specification |
| Na3AlF6
| 98% | |
| F
| 53.4% | |
| Al
| 14.6% | |
| Na
| 30.5% | |
| SiO2
| 0.25% | |
| Fe2O3
| 0.03% | |
| SO4
| 0.01% | |
| Hygroscopic moisture
| 0.15% | |
| Cauterant decrease
| 1.27% | |
| Molecular proportion
| 2.46% |
|
1. As a fluxing agent in aluminum product and non-ferrous metal smelting.
|
|
2. As a wear- resistant filler for resin and rubber-boned abrasive wheels. |
T/T 30% deposit ,70% paid against copy B/L
►MOQ
1-25ton