Catalogue of products for export

Designation: Cryolite

Description: CC FEA 2826 30 0000

Artificial cryolite of technical grade 3NаF.AlF3 or Na3AlF6 represents double salt of sodium fluoride and aluminum fluoride. Cryolite occurs in nature and is artificially derived. Natural cryolite has rather limited use, and aluminum industry uses generally artificial one.

 

There are three grades of artificial cryolite:

• КАэ used for electron-tube glass manufacture;

• КА (of higher and first grades) used in aluminum industry, for manufacture of enamels and for other purposes;

• КП used for manufacture of glass, abrasives and for other purposes.

 

Identified application:

• manufacture of glass, ceramics, abrasives and for other purposes.

Packing and transportation:

• disposable plastic big bags as МКР-1,0 or МКР-1,0М;

• 4-6-layer paper bags;

Delivery by covered wagons.

 

Specification

 

Characteristics

Unit

Standard

1

Appearance

 

fine crystalline powder of light pink to grayish-white color 

2

Mass fraction of  fluor, min

%

52

3

Mass fraction of  aluminum, min

%

23

4

Mass fraction of  sodium, min

%

13

5

Cryolite value

%

not rated

6

Mass fraction of  silicium dioxide (SiO2), max

%

1,5

7

Mass fraction of  ferrous oxide (Fe2O3), max

%

0,1

8

Mass fraction of  sulfates as SO4, max

%

1,0

9

Mass fraction of  water, max

%

0,8

10

Mass fraction of  phosphorous pentoxide  (P2O5), max

%

0,6