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Cryolite

Other Name: Sodium fluoroaluminate, Synthetic Cryolite,Na3AlF6


tabular alumina Brown Fused Alumina

ceramic proppant White Fused Alumina

glass bead Zirconia Alumina

potassium aluminum fluoride Boron Carbide

cryolite Cryolite

boron carbide Potasssium Aluminum Fluoride

zirconia alumina Glass Bead

Cryolite°Įs introduction

 Cryolite (Sodium fluoroaluminate) is a white crystalline powder or a sandy-size granularity, and a pinkish crystalline powder or a sandy-size granularity as well. Sp.gr.2.95°™3.01g/cm3, melting point about 1000°„C, specific heat 1.056j/g°„C at 18°™100°„C.Cryolite°Įs slightly soluble in water, but insoluble in anhydrous hydrogen fluoride. The content of Cryolite°Įs crystal water will be decreased while the increasing of the molecular ratio, therefore its loss on ignition will be also decreased while the increasing of the molecular ratio. After the paste of synthetic cryolite with different molecular ratio dehydrates, the loss on ignition at 800°ś will appear 10.34%, 6.22% and 2.56% when the molecular ratio reaches 1.74, 2.14 and 2.63 reactively.

 

cryolite

Cryolite°Įs Specification


CHEMICAL COMPOSITION (%)

CH-0

CH-1

CM-0

CM-1

F

°›52

°›52

°›53

°›53

Al

°›12

°›12

°›13

°›13

Na

°‹33

°‹33

°‹32

°‹32

SiO2

°‹0.25

°‹0.36

°‹0.25

°‹0.36

Fe2O3

°‹0.05

°‹0.08

°‹0.05

°‹0.08

SO4 2-

°‹0.6

°‹1.0

°‹0.6

°‹1.0

CaO

°‹0.15

°‹0.20

°‹0.20

°‹0.6

P2O5

°‹0.02

°‹0.03

°‹0.02

°‹0.03

H2O(105~110°ś)

°‹0.20

°‹0.40

°‹0.20

°‹0.40

Loss on Drying(500~550°ś,1h)

°‹2.0

°‹2.5

°‹2.0

°‹2.5

Appearance: Sandy, Powder, Granule
CAS No.:13775-53-6
HS?CODE: :2826.3000
Density:2.95-3.05g/cm3
Size: sandy (80mesh), powder (200mesh, 325mesh),granular?(0-10mm)

 

Application

It's mainly used as a flux in the aluminum smelting by fusedsalt electrolysis; also an opalizer in the manufacture of enamel; an opacifier and auxiliary solvent of glass and enamel; an insecticide of crops; a flux in aluminum alloy casting; and in the production of ferrous alloy and effervescing steel; as well as a wear-resistant filler for resin and rubber bonded abrasives wheel.

 

 

 

 

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