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01713

Sigma-Aldrich

Cryolite

synthetic, ≥97.0% (from F)

Sinónimos:

Kryolith, Sodium hexafluoroaluminate

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About This Item

Fórmula lineal:
Na3AlF6
Número de CAS:
15096-52-3
Peso molecular:
209.94
MDL number:
MFCD00003507
UNSPSC Code:
12161600
PubChem Substance ID:
57646698
NACRES:
NA.22

Quality Level

100

assay

≥97.0% (from F)

form

powder

quality

synthetic

reaction suitability

core: aluminum
reagent type: catalyst

impurities

≤0.5% silicic acid (as SiO2)

loss

≤0.5% loss on drying, 105 °C

cation traces

Fe: ≤500 mg/kg

storage temp.

2-30°C

SMILES string

[Na+].[Na+].[Na+].F[Al-3](F)(F)(F)(F)F

InChI

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

InChI key

REHXRBDMVPYGJX-UHFFFAOYSA-H

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Application

Cryolite is commonly used as an electrolyte for aluminum electrolysis. Alumina is dissolved in molten cryolite is used to dissolve alumina during aluminium processing.

signalword

Danger

Hazard Classifications

Acute Tox. 4 Inhalation - Aquatic Chronic 2 - STOT RE 1

Storage Class

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges

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Certificados de análisis (COA)

Lot/Batch Number
BCCJ2923
BCCG1180
BCCD8438
BCCD1905
BCCB8145

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G A Valova et al.
TSitologiia i genetika, 28(3), 56-59 (1994-05-01)
Dermatoglyphic investigations which prove the existence of genetic predisposition to occupational fluorosis in workers of aluminum and criolite plants were carried out. Mathematical methods of pattern recognition were used for the multifactorial analysis. It was found that the complex analysis
Properties of low-temperature melting electrolytes for the aluminum electrolysis process: a review.
Cassayre L, et al.
Journal of Chemical and Engineering Data, 55(11), 4549-4560 (2010)
Renat R Nazmutdinov et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 75(4), 1244-1252 (2010-02-13)
The structure of sodium cryolite melts was studied using Raman spectroscopy and quantum chemical calculations performed at the density functional theory level. The existence of bridged forms in the melts was argued first from the analysis of experimental Raman spectra.
P Grandjean et al.
American journal of epidemiology, 121(1), 57-64 (1985-01-01)
A cohort of 431 male cryolite workers employed for at least six months between 1924 and 1961 was identified from personnel records at the Copenhagen cryolite factory. During this period, heavy fluoride exposure resulted in at least 74 cases of
Tone Sjåheim et al.
American journal of industrial medicine, 50(6), 443-448 (2007-05-12)
Aluminum potroom asthma (PA) has been described in several reports. This study aimed to investigate the association between blood eosinophils and PA. In a cross-sectional study, 338 workers were examined as follows: spirometry, blood eosinophils, skin prick test, and work
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