Сода кальцинированная
Sodium carbonate, anhydrous sodium carbonate.
Represents colorless crystals or white powder.
In Russia, there are 2 types of soda ash brands : grade A and grade B, which differ in their properties.
Due to its properties, soda ash has found wide application in all areas of industry.
Applications:
⇒ Used in the production of all types of glass products (crystal, fiberglass, glass blocks, bottles, dishes, etc.)
⇒ In the soap industry
⇒ As part of detergents
⇒ When separating pulp in papermaking
⇒ In the production of paints and varnishes
⇒ When tanning leather in the leather industry
⇒ In ferrous and non-ferrous metallurgy
⇒ In the oil and gas industry
⇒ In the food industry as a thickener E500.
Specifications:
| Indicator name | Norm for brand and grade | |||||
| Grade A OKP 21 3111 0200 | Grade B OKP 21 3111 0100 | |||||
| Highest grade OKP 21 3111 0220 |
First grade OKP 21 3111 0230 |
Second grade OKP 21 3111 0240 |
Highest grade OKP 21 3111 0120 |
First grade OKP 21 3111 0130 |
Second grade OKP 21 3111 0140 |
|
| 1. Appearance | White granules | White powder | ||||
| 2. Mass fraction of sodium carbonate (Na 2 CO 3 ),%, not less | 99.4 | 99.0 | 98.5 | 99.4 | 99.0 | 99.0 |
| 3. Mass fraction of sodium carbonate (Na 2 CO 3 ) in terms of uncalcined product,%, not less | 98.7 | 98.2 | 97.0 | 98.9 | 98.2 | 97.5 |
| 4. Mass fraction of loss on ignition (at 270-300) ºС,%, no more | 0.7 | 0.8 | 1.5 | 0.5 | 0.8 | 1.5 |
| 5. Mass fraction of chlorides in terms of NaCl,%, no more | 0.2 | 0.5 | 0.8 | 0,4 | 0.5 | 0.8 |
| 6. Mass fraction of iron in terms of Fe 2 O 3 ,%, no more | 0.003 | 0.005 | 0.008 | 0.003 | 0.003 | 0.008 |
| 7. Mass fraction of substances insoluble in water,%, no more | 0.04 | 0.04 | 0.08 | 0.03 | 0.04 | 0.08 |
| 8. Mass fraction of sulfates in terms of Na 2 SO 4 ,%, no more | 0.04 | 0.05 | Not standardized | 0.04 | 0.05 | Not nominated |
| 9. Bulk density, g / cm 3 , not less | 1.1 | 0.9 | 0.9 | Not nominated | ||
| 10.Granulometric composition: | Also | |||||
| residue on a sieve with a mesh No. 2K in accordance with GOST 6613,%, no more | Not standardized | five | five | |||
| passing through a sieve with mesh No. 1, 25K in accordance with GOST 6613,% | one hundred | Not standardized | ||||
| residue on a sieve with a mesh No. 1K in accordance with GOST 6613,%, no more | 3 | Also | ||||
| passing through a sieve with a mesh No. 01K in accordance with GOST 6613,%, no more | 7 | 15 | 25 | |||
| eleven . Magnetic inclusions larger than 0.25 mm | Absent | Not standardized | Also | |||