Range of application
Light soda ash and dense soda ash are used in the manufacture of all types of glass, including crystal, optical and medical glass, glass blocks, foam glass, soluble sodium silicate, ceramic tiles, frit component for glazes; in ferrous and non-ferrous metallurgy: for the production of lead, zinc, tungsten, strontium, chromium, for the desulphurization and phosphorus removal of iron, in exhaust gases purifying, for media neutralization. Light soda ash of premium quality with strictly normalized grain-size distribution is used for the production of electron-tube glass. Dense soda ash is used in chemical industry for the production of synthetic detergents and fatty acids, in the purification of brines, in the production of phosphorus, chromium, barium, sodium salts as a carbonate-containing raw material, in the production of glycerols, allyl alcohol; in pulp and paper, aniline ink, paint-and-varnish and oil industries.
Kind of packing: 25 kg bags
Technical characteristics|
Indicator name |
High class |
First class |
Second class |
|
Physical form of ash of soda |
White granules | ||
|
Weight percent of sodium carbonate %, minimum |
99,4 |
99,0 |
98,5 |
|
Weight percent of sodium carbonate, expressed as unignited product, %, minimum |
98,7 |
98,2 |
97,0 |
|
Weight percent of ignition loss (270-300 °C), %, maximum |
0,7 |
0,8 |
1,5 |
|
Weight percent of chlorides expressed as NaCI, %, maximum |
0,5 |
0,8 | |
|
Weight percent of iron expressed as Fe203l, %, not maximum |
0,003 |
0,005 |
0,008 |
|
Weight percent of substances insoluble in water, %, maximum |
0,04 |
0,08 | |
|
Weight percent of sulphates expressed as Na2S04) %, maximum |
0,04 |
0,05 |
- |
|
Poured density of ash of soda, g/cm3, minimum |
1,1 |
0,9 | |
|
Grain-size distribution | |||
|
Sieve residue with mesh N 2K according to GOST 6613-86, % |
- |
5 | |
|
Passing the sieve with mesh N 1,25K according to GOST 6613-86, % |
100 |
- | |
|
Sieve residue with mesh N1K according to GOST 6613-86, % |
3 |
- | |
|
Passing the sieve with mesh N 01K according to GOST 6613-86, % |
7 |
15 |
25 |
|
Magnetic inclusions larger than 0.25 mm |
- |
- | |