Soda ash of A and B grades is 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; also used in ferrous and non-ferrous metallurgy for the production of lead, zinc, wolframium, strontium, chromium for desulphurisation and dephosphorisation of raw iron, for the purification of exhaust gases, for neutralizing of environments.
Technical soda ash (sodium carbonate) – white powder or granule. Chemical formula - Na2CO3. Soda ash is a hygroscopic product, which absorbs moisture and carbon dioxide from the air to form an acid salt NaHCO3. Cakes when stored outdoors. Aqueous solutions of soda ash have intensive alkaline reaction. Soda ash is produced in two variants: A (granulated) and B (powder).
Field of application Soda ash of A and B grades is 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; also used in ferrous and non-ferrous metallurgy for the production of lead, zinc, wolframium, strontium, chromium for desulphurisation and dephosphorisation of raw iron, for the purification of exhaust gases, for neutralizing of environments. Soda ash of premium grade A with strictly standardized grain size distribution is used for the production of electron-tube glass. Soda ash grade B is used in chemical industry for the production of detergents and fatty acids, for the purification of brines, in the production of phosphorus, chromium, barium and sodium salts as a carbonate-containing raw material, used in the production of glycerols, allyl alcohol, pulp and paper, paint and oil industries.
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Grade А |
Grade B |
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Premium grade |
First grade |
Second grade |
Premium grade |
First grade |
Second grade |
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Sodium carbonate contents (Na2CO3), %, not less than |
99,4 |
99 |
98,5 |
99,4 |
99 |
99 |
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Sodium carbonate contents (Na2CO3) equal to uncalcined product, %, not less than |
98,7 |
98,2 |
97 |
98,9 |
98,2 |
97,5 |
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Ignition losses (at 270-300°C), %, not more than |
0,7 |
0,8 |
1,5 |
0,5 |
0,8 |
1,5 |
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Chloride contents equal to NaCI, %, not more than |
0,2 |
0,5 |
0,8 |
0,4 |
0,5 |
0,8 |
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Ferrum contents equal to Fe2O3, %, not more than |
0,003 |
0,005 |
0,008 |
0,003 |
0,003 |
0,008 |
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Contents of water-insoluble substances,%, not more than |
0,04 |
0,04 |
0,08 |
0,03 |
0,04 |
0,08 |
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Sulphate contents equal to Na2SO4, not more than |
0,04 |
0,05 |
not standardized |
0,04 |
0,05 |
not standardized |
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Packed density, g/cm3, not less than |
1,1 |
0,9 |
0,9 |
not standardized |
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Grain size distribution: |
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Residue on sieve with mash No. 2K according to GOST 6613, %, not more than |
not standardized |
5 |
5 |
not standardized |
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Passing through sieve with mash No. 1,25K according to GOST 6613, % |
100 |
not standardized |
not standardized |
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Residue on sieve with mash No. 1K according to GOST 6613, %, not more than |
3 |
not standardized |
not standardized |
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Passing through sieve with mash No. 01K according to GOST 6613, %, not more than |
7 |
15 |
25 |
not standardized |
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Magnetic inclusions of size more than 0.25 mm |
Absent |
not standardized |
not standardized |
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Package: Soda ash is packed in 50 kg paper bags, plastic big bags of 800 kg (grade A) and 500 kg (grade B). Soda ash is transported in bulk on soda carriers and hoppers. Big bags packed soda ash is transported by railroad on open and covered wagons.
Soda ash packed in bags can be transported by any means of transport in case it is kept dry.
Guaranteed storage life: Grade А – 3 months., Grade B – 6 months, big bags packed – 5 years starting the date of manufacture.
Guaranteed storage life: 12 months.