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Cryolite
Na3AlF6
Descriptions：
Synthetic cryolite is an odorless white crystalline powder. The solubility is greater than natural cryolite. Apparent Density<1.0 g/cm3, Hardness 2~3, melting point 1009℃. It's easy to absorb water and become damp.
Features：
ReTech cryolite have advantages of consistent particle size, high quality and high purity.
- Applications：
- 1) As a flux in the electrolytic production of aluminum.
- 2) A wear-resistant additives for abrasive products.
- 3) A wear-resistant filler for resin and rubber-bonded abrasive wheels.
- 4) Ferroalloy boiling steel electrolyte, metal flux, casting deoxidizer.
- 5) Emulsifier for enamel, opalizer for glass anti-reflective coating, flux for soldering materials.
Specifications：
| Item | Chemical Composition (%) | Physical Properties | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Test Item | Na3 Al F6 | F | AI | Na | SiO2 | Fe2O3 | SO42- | CaO | P2O5 | H2O | Ignition Loss |
| Limits | 96~99% | 53% /min | 13% /min | 32% /max | 0.36% /max | 0.08% /max | 0.8% /max | 0.6% /max | 0.03% /max | 0.4% /max | 2.5% /max |
Zinc Sulfate
ZnSO4 . 7H2O
Descriptions：
Colorless crystals, small acicular or granular crystalline powder, odorless, astringent, metallic smell, weathering in air.
The solution is acidic to litmus, the specific gravity is 1.957 (25/4°C), and the melting point is 100°C.
Lose 7H2O at 280°C, soluble in water and glycerin, insoluble in alcohol, low toxicity.
- Applications：
- 1) As the artificial silk
- 2) For food
- 3) For feeds
- 4) As mordant
- 5) As wood preservative
- 6) As analyze reagent
Specifications：
| Item | Chemical Composition (%) | ||||||
|---|---|---|---|---|---|---|---|
| Test Item | Zinc(Zn) | Arsenic(As) | Lead (Pb) | Cadmium(Cd) | Mercury(Hg) | Insoluble (in water) | pH |
| Limits | ≥21.00 % | 5 ppm Max | 20 ppm Max | 20 ppm Max | 5 ppm Max | ≤ 0.02% | ≥ 3.0 |
| Remark | 50g/L aqueous | ||||||
Ammonium Sulfate
(NH4) 2SO4
Descriptions：
white or slightly yellow crystal
Features：
99% crystal
- Applications：
- 1) As flux
- 2) For leather using
- 3) As plating solution
- 4) Dyeing and finishing
- 5) As the material of ammonium persulphate
Specifications：
| Item | Chemical Composition (%) | |||
|---|---|---|---|---|
| Test Item | concentration | Sulphur Content | H2O | H2SO4₄ |
| Limits | ≥ 99 % | ≥ 24 % | < 0.3 % | < 0.1 % |
Sodium Aluminate
NaAlO2
Descriptions：
White Liquid
- Applications：
- 1) As mordant
- 2) As mesolite
- 3) As purified water
- 4) As soaps and cleaning compounds
- 5) As concrete accelerator
Specifications：
Customized according to customer needs