Sodium Aluminum Fluoride Na3alf6 for Aluminium Smelting Synthetic Cryolite Industrial
Detailed Description: 
Cas No. :13775-53-6 Molecular Formula:Na3AlF6 Quality Standard : GB/T 4291-2007
PS:Molecular proportion 2.80-3.00 is high molecular proportion cryilite (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.
Physical properties
Cryolite is a kind of complex compound or double salt of NaF and AIF3.
Appearance: white, gray ,yellow powder or crystalline particles.
Melting point:1025ºC,
Stacking density:0.6-1.0g/L,
True density: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.
Specifications
Items | Chemical Composition ( Concentration )/ % | |||||||||
| Not less than | Not more than | |||||||||
| F | Al | Na | SiO2 | Fe2O3 | SO4= | CaO | P2O5 | H2O | Loss on ignition , 550ºC30min | |
| 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 |
Packing
25kgs PP bags or 1000kgs-1500kgs jumbo bags, or according to customer requirement
Application
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.
