Synthetic cryolite powder is one kind of odorless white solid or powder.
Most cryolite is manufactured from aluminium oxides, hydrofluoric acid, and
sodium hydroxide or the equivalent reagent hexafluorosilicic acid:
6 NaOH + Al2O3 + 12 HF → 2 Na3AlF6 + 9 H2OIt was mined as cryolite at Ivigtût
on the west coast of Greenland, until the deposit was depleted in 1987.
Details
| |
CAS Number
| 15096-52-3 |
Properties
| |
Chemical formula
| Na3AlF6 |
Molar mass
| 209.94 g/mol |
Appearance
| white powder |
Density
| 2.9 g/cm3, solid |
Melting point |
1000°C (1,740 °F; 1,220 K)
|
Boiling point
| decomposes |
Solubility in water
| 0.04% (20°C) |
Vapor pressure
| essentially 0 |
Macro molecule
Na3AlF6 | Item
| Specification |
Na3AlF6
| 98% | |
F
| 53.5% | |
Al
| 13.8% | |
Na
| 31.2% | |
SiO2
| 0.28% | |
Fe2O3
| 0.03% | |
SO4
| 0.01% | |
Hygroscopic moisture
| 0.17% | |
Cauterant decrease
| 1.85% | |
Molecular proportion
| 2.65% |
Low molecule
Na3AlF6 | Item
| Specification |
Na3AlF6
| 98% | |
F
| 53.4% | |
Al
| 14.6% | |
Na
| 30.5% | |
SiO2
| 0.25% | |
Fe2O3
| 0.03% | |
SO4
| 0.01% | |
Hygroscopic moisture
| 0.15% | |
Cauterant decrease
| 1.27% | |
Molecular proportion
| 2.46% |
1.Pesticides
2.Adhesives
3.Cosolvent in enamel industry
T/T 30% deposit ,70% paid against copy B/L
►MOQ
1-25ton