Properties
Molecular Weight: 209.94
Molecular Formula: Na3AlF6
Color: White, off-white, yellow
Melting Point: 1025ºC
True Density: 2.95~3.05g/cm3
The Hardness: 2~3
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 1025ºC, stacking density is 0.6-1.0g/L, true density is 2.95-3.05g/cm3 , heat of formation is 225KJ, specific gravity is 2.75-3.00g/cm3 , heat of fusion is 107KJ. Slightly soluble in water.
Cryolite is mainly composed of sodium hexafluoroaluminate or sodium aluminum fluoride, the molecular formula is Na3AlF6, small white crystals, odorless, specific gravity is 3, hardness 2~3, melting point 1009 degrees Celsius, easy to absorb moisture.
The Hall-Heroult process uses cryolite based fluoride melt as a solvent to produce aluminum. So far, no other compound has been found that can replace cryolite. This is because cryolite, in addition to being able to dissolve alumina, also has some other indispensable properties, such as no electrical elements than aluminum, good stability, under normal conditions do not decompose, do not volatilize, do not delix, melting point is higher than aluminum, good conductivity, saving electricity and so on.
Specifications:
Ps : Molecular proportion 2.80-3.00 is high molecular proportion cryolite ( CH ), molecular proportion 1.00-2.80 is low molecular cryolite ( CM ). Product molecular ratio and the fineness of grain size can be customized according to customer demand .
|
Brand
No.
|
Chemical Composition(％)
|
Physical
Property
|
|
F
|
Al
|
Na
|
SiO2
|
Fe2O3
|
SO₄²⁻
|
CaO
|
P2O5
|
Moisture
|
Ignition
Loss
|
|
≥
|
≤
|
|
|
CH-0
|
52
|
12
|
33
|
0.25
|
0.03
|
0.50
|
0.10
|
0.02
|
0.20
|
1.5
|
|
CH-1
|
52
|
12
|
33
|
0.36
|
0.05
|
0.80
|
0.15
|
0.03
|
0.40
|
2.5
|
|
CM-0
|
53
|
13
|
32
|
0.25
|
0.05
|
0.50
|
0.20
|
0.02
|
0.20
|
2.0
|
|
CM-1
|
53
|
13
|
32
|
0.36
|
0.08
|
0.80
|
0.60
|
0.03
|
0.40
|
2.5
|
Packing and Shipping:
Packaging: Synthetic Cryolite is packaged in laminated plastic woven bag, lined with plastic film bag, 25kg/50kg/1000kg each bag or according to customer requirements.
Shipping:
Synthetic Cryolite is shipped via land, sea, and air.
Our Services
1.Free samples available before confirming the order to avoid any problems.
2.Goods delivered directly from the factory warehouse after well produced in a high quality and good situation.
3.Competitive price.
4.Prompt shipment, usually within 10 working days after confirming the order.
5.Testing equipment: SGS, UV, HPLC, GC, CIQ.
6.Supply Ability: 2000MTS/month, large stock available.
FAQ
1. Do you provide samples?
We can supply you samples definitely. Sample testing is one of the standards to reassure customers Custom-made and Special Design are available.
2. How is your price? What is your payment term?
For Orders, our payment term is T/T 30% in advance and the balance 70% before loading. Other payment terms can be negotiable.
3. What is your minimum order quantity?
MOQ can be negotiable, in order for customer's benefit and for our long term cooperation.
4. How long for manufacturing the order?
10-20days after receiving deposit.
5 .How can we guarantee quality?
Always a pre-production sample before mass production.
Always final inspection before shipment.
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