Industrial Grade Cryolite Powder CAS 7681-49-4 Sodium Aluminium Fluoride

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

,

calcium fluoride salt

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Product Description

Supply 98% cryolite synthetic cryolite, 7681-49-4,aluminum sodium fluoride

Product Description:
 

Specification for Industrial Grade :

 

Items Industrial Grade
Content ( NaF ) 98% min
Water Insoluble Matters 0.70% max
Free Acid ( HF ) 0.10% max
Free Alkali ( Na2CO3 ) 0.50% max
Sulfate ( SO4 ) 0.30% max
Silicate ( SiO2 ) 0.50% max
Moisture ( H2O ) 0.50% max

 

 

Cryolite and six fluoride and sodium aluminate and sodium aluminum fluoride, formula for Na3AlF6, white tiny crystals, no smell, solubility, larger than the natural cryolite ratio is 3, 2 ~ 3 hardness, melting point 1009 ℃, easy water be affected with damp be affected with damp.

Cryolite is mainly used as fluxing agent in the production of aluminum electrolysis, rubber, wheel wear resistant filler, enamel opal agent, glass of sunscreen and metal flux, crops insecticide, etc.

Hall - Heroult method is to use cryolite based fluoride as solvent to produce aluminium melt method, so far haven't found another compounds can take the place of cryolite.This is because the cryolite besides can dissolve the alumina also has some other indispensable properties, such as excluding than aluminum correction electrical elements, good stability, under the condition of the general decomposition, non-volatile, deliquescence, melting point higher than that of aluminum, good conductivity, electricity saving, etc.

 

Usage:

1. It is used directly in magnesium rich aluminium alloys to remove and control of magnesium in the aluminium alloys. It is much safer in this applications where earlier Chlorine gas were used, these gases cause local health problems and are also responsible for ozone depletion.
2. It is used in the manufacture of grinding wheels (filler/binder) and other abrasive products.
3. Other common applications of PAF are as additive to roofing shingles, where it acts as an alkaline Ph adjuster and flame retardant. It can also be used as color additive to the coatings for roofing granules.
4. Glass producers use the PAF for opacification, or to cloud the glass giving it a milky white color.

Industrial Grade Cryolite Powder CAS 7681-49-4 Sodium Aluminium Fluoride 0

 

Industrial Grade Cryolite Powder CAS 7681-49-4 Sodium Aluminium Fluoride 1

Industrial Grade Cryolite Powder CAS 7681-49-4 Sodium Aluminium Fluoride 2

 
 
Package and Delivery
Industrial Grade Cryolite Powder CAS 7681-49-4 Sodium Aluminium Fluoride 3

 

Packing:
25kg/bag , 50kg/bag  Jumbo bag or as customers' requirement.

Industrial Grade Cryolite Powder CAS 7681-49-4 Sodium Aluminium Fluoride 4Industrial Grade Cryolite Powder CAS 7681-49-4 Sodium Aluminium Fluoride 5