Trisodium hexafluoroaluminate Chemical Properties

Melting point:

1000°C

Density 

2.9 g/mL at 25 °C (lit.)

refractive index 

1.338

solubility 

insoluble in H2O

form 

Crystals

Specific Gravity

2.9

color 

White

Water Solubility 

Sparingly soluble in water(0.602 g/L at 20°C).

Merck 

14,2606

Solubility Product Constant (Ksp)

pKsp: 9.39

CAS DataBase Reference

13775-53-6(CAS DataBase Reference)

EPA Substance Registry System

Aluminate(3-), hexafluoro-, trisodium, (OC-6-11)- (13775-53-6)

Safety Information

Hazard Codes 

T,N

Risk Statements 

20/22-48/23/25-51/53-20

Safety Statements 

22-37-45-61

RIDADR 

UN 3077 9/PG 3

WGK Germany 

1

RTECS 

BD0075000

TSCA 

Yes

HazardClass 

8

PackingGroup 

III

MSDS

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Trisodium hexafluoroaluminate Usage And Synthesis

Chemical Properties

Sodium 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

Uses

Sodium aluminum hexafluoride is used as a solvent (or flux) for electrolysis aluminum oxides such as bauxite, whitener for enamels and an opacifier for glass and in the industrial production of aluminum.

Definition

A compound found in large quantities in South Greenland. It is white or colorless, but may be reddish or brown because of impurities. Sodium hexafluoroaluminate is used as a flux in the manufacture of aluminum. It crystallizes in the monoclinic system but in forms that closely resemble cubes and isometric octahedrals.

Flammability and Explosibility

Non flammable

Potential Exposure

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

Shipping

UN3077 Environmentally hazardous substances, solid, n.o.s., Hazard class: 9; Labels: 9-Miscellaneous hazardous material, Technical Name Required.

Incompatibilities

Incompatible with strong acids such as sulfuric, strong oxidizers, hydrogen fluoride.

Waste Disposal

In 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.

Trisodium hexafluoroaluminate(13775-53-6)Related Product Information

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