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Synthetic Cryolite

 

Synonym: sodium fluoroaluminate

 

Formula: Na3 AlF6

M. W.: 209.94

 

Cas No.:13775-53-6

Grade: tech. grade

Description: it is crystalline white powder. slightly soluble in water, density 2.95-3, melting point 1000°C, easily absorbing water and become damp, decomposed by strong acids like sulfuric acid and hydrochloride, then producing hydrofluoric acid and relevant aluminum salt and sodium salt.

Specifications:

 GB/4291-1999

Grade	Chemical compositions %
	F	AL	Na	SiO2	Fe2O3	S04	P2O5	H02	Ignition (550°C)
	Min.		Max.
Special grade (A)	53	13	32	0.25	0.05	0.7	0.02	0.4	2.5
First grade (B)	53	13	32	0.36	0.08	1.0	0.03	0.5	3.0

Ingredient	Super	First grade	Second grade
F%≥	53	53	53
Na% ≥	32	32	32
Al≥	13	13	13
H2O%≤	0.4	0.5	0.8
SiO2≤	0.25	0.36	0.4
Fe2O3%≤	0.05	0.08	0.10
SO4%≤	0.7	1.20	1.30
P2O5%≤	0.02	0.03	0.03
Ignite on 550oC≤	2.5	3.00	3.00
CaO%≤	0.10	0.15	0.20

Uses: mainly used in flux of electrolytic aluminum, pesticide, flux of ceramic colors, anti-rubbing filling agent of resin and rubber, electrolytic liquid for production of iron alloy rimmed steel and furnish of emery wheel.

The size distribution can be sandy (80mesh), powder (200mesh, 325mesh), granular (0-10mm). Other items can be specified according to special requirement.

If you are interested in our products, please contact with Sunny, email: pengbochem03 at pengbochem dot cn

   

good quality Synthetic Cryolite, sodium fluoroaluminate 53% for aluminium