Ceramic And Glass Industry Sodium Cryolite Na3AlF6 Trisodium Hexafluoroaluminate

Place of Origin Jiaozuo city,China
Brand Name Jinshengwei
Certification ISO 9001
Model Number CH-1/CM-1
Minimum Order Quantity 1 metric ton
Packaging Details 1, Jumbo bag;2, 25kgs/50kgs/1000kgs net weight,or as customized
Delivery Time 3-7 work days
Payment Terms T/T, L/C, D/P, D/A, Western Union, MoneyGram
Supply Ability 3000 tons/month
Product Details
Name Synthetic Cryolite H.S. Code 2826300000
Color White/Gray Appearance Powder/Sand/Granular
Melting Point 1025℃ Usage Fluxing Agents/Solder Agent/Degassing Agent
Application Abrasives,Aluminum,Ceramic Quality High Quality
Molecular Weight 209.94 Size 20-325mesh, As Customized
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sodium fluoride salt

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calcium fluoride salt

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Product Description

Cryolite (Na3AlF6, trisodium hexafluoroaluminate) for the primary aluminium manufacturing

 

It is used as a flux to dissolve alumina during electrolysis. Cryolite is also used in the abrasive, ceramic and glass industries.

 

 

Fluoride produces granular cryolite by reacting dilute hydrofluoric acid (HF) with aluminum hydrate (Al(OH)3). The H3AlF6 acid is then converted to the sodium salt by an ion exchange reaction with a sodium chloride solution. After solid-liquid separation, the cryolite slurry is calcined in an internally heated rotary kiln. The final product is in the form of light pink particles. The ground cryolite is obtained from the mass of the particles after spin grinding.

 

 

Synthetic cryolite is available in 1 ton large bags or 25 50 kg paper bags on pallets.

 

 

Detailed Description:

Cas No. :15096-52-3;1344-75-8;13775-53-6;12397-51-2

Molecular Formula:Na3AlF6

 

Quality Standard : GB/T4291—2007

Specifications:

Items

 

Class

Chemical Composition ( Concentration )/ %
Not less than Not more than
F Al Na SiO2 Fe2O3 SO4= CaO P2O5 H2O Loss on ignition
, 550℃30min

CH-0

52

12

33

0.25

0.05

0.6

0.15

0.02

0.20

2.0

CH-1

52

12

33

0.36

0.08

1.0

0.20

0.03

0.40

2.5

CM-0

53

13

32

0.25

0.05

0.6

0.20

0.02

0.20

2.0

CM-1

53

13

32

0.36

0.08

1.0

0.60

0.03

0.40

2.5

Size distribution

Granular 0-10 mm
Sandy 80 mesh
Powder 200 mesh, 325mesh

Physical properties: Cryolite is a kind of complex compound or double salt. Caused by impurity, the appearance can be white, gray ,yellow powder or crystalline particles. It's melting point is 1025℃, stacking density is 0.6-1.0g/L, true density is 2.95-3.05g/cm 3 , heat of formation is 225KJ, specific gravity is 2.75-3.00g/cm 3 , heat of fusion is 107KJ. Slightly solubte in water.

Applications
Aluminium- metallurgy: as component of fluxing agents, protective and refining salts;
Production of abrasives: as active filler in resinbonded abrasives for metal treatment;
Production of enamel, glazing frits and glass: as flux and opacifying agent;
Production of soldering agent: as component for fluxing agents;
Production of welding agents: as component of welding rod coatings and welding powders;
Blasting and pyrotechnics: for fireworks;
Metal surface treatment: as component in pickling pastes for stainless steel.

 

 

 

CAS Registry Number: 15096-52-3;1344-75-8;13775-53-6;12397-51-2
Synonyms: Synthetic cryolite;Cryolite;EPA Pesticide Chemical Code 075101;Kryolith [German];Natriumaluminiumfluorid;Natriumhexafluoroaluminate [German];Aluminum sodium fluoride (Na3AlF6);Aluminum sodium hexafluoride (AlNa3F6);Aluminum trisodium hexafluoride;Trisodium aluminum hexafluoride;Sodium fluoroaluminate (Na3AlF6);Aluminate(3-), hexafluoro-, sodium (1:3), (OC-6-11)-;Aluminate(3-), hexafluoro-, trisodium, (OC-6-11)-;Trisodium hexafluoroaluminate(3);aluminum sodium fluoride (1:3:6);aluminum sodium hexafluoride;artificial cryolite;Sodium fluoroaluminate;Aluminum sodium fluoride;Sodium aluminum fluoride;Sodium Aluminum Fluorid;
Molecular Formula: Na3AlF6
Molecular Weight: 209.9402
Hazard Symbols: Dangerous for the environment;
Risk Codes: R20/22-48/23/25-51/53:;
Safety Description: S22-37-45-61:;
Ceramic And Glass Industry Sodium Cryolite Na3AlF6 Trisodium Hexafluoroaluminate 0