Sodium aluminum fluoride

Synonyms

Cryolite; Cryolite (AlNa3F6); Cryolite (Na3(AlF6)); Greenland spar; ICE Spar; Icetone; Koyoside; Kriolit; Kryocide; Kryolith [German]; Natriumaluminiumfluorid [German]; Natriumhexafluoroaluminate [German]; [ChemIDplus]

Category

Fluorides, Inorganic

Description

Colorless to white (but may also be other colors) solid; [CHEMINFO]

Sources/Uses

Used as an electrolyte in the production of aluminum by electrolytic reduction; [ACGIH]

Comments

May cause fluorosis; "Lungs may be affected by repeated or prolonged exposure to dust particles." [ICSC] See "FLUORIDES."

Reference Link #1

Biomedical References

Fluorides in urine = 2 mg/L prior to shift or 3 mg/L at end of shift; (Repeated measurements recommended.)

2.5 mg/m3, as F

2.5 mg/m3, as F

1 mg/m3 as F, inhalable fraction

Diseases

Occupational diseases associated with exposure to this agent:

• Skeletal fluorosis

Processes

Industrial Processes with risk of exposure:

• Aluminum Producing