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01713

Sigma-Aldrich

Cryolite

synthetic, ≥97.0% (from F)

Synonym(s):

Kryolith, Sodium hexafluoroaluminate

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About This Item

Linear Formula:
Na3AlF6
CAS Number:
15096-52-3
Molecular Weight:
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.

Signal Word

Danger

Hazard Statements

H332,H372,H411

Hazard Classifications

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

Storage Class Code

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

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
BCCJ2923
BCCG1180
BCCD8438
BCCD1905
BCCB8145

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Liangshi Wang et al.
Journal of hazardous materials, 209-210, 77-83 (2012-01-28)
This paper investigates the development of a new environment friendly approach for treatment of bastnasite. A new process was developed to recover fluorine from bastnasite as synthetic cryolite by-product. The conditions affecting the fluorine removal and recovery in the process
Effects of airborne fluorides on workers at a cryolite production plant.
Y Baba et al.
Gaoxiong yi xue ke xue za zhi = The Kaohsiung journal of medical sciences, 1(4), 226-233 (1985-04-01)
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
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
S Gelsomino et al.
The Journal of heart valve disease, 10(5), 603-610 (2001-10-18)
Left ventricular (LV) hypertrophy has been shown adversely to affect LV function and late outcome after aortic valve replacement (AVR). The study aim was to assess the time course of LV mass regression (LVMR) after AVR with a CryoLife-O'Brien stentless
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