Pure sodium carbonate is a white, odorless powder that is hygroscopic (absorbs moisture from the air). It has a strongly alkaline taste, and forms a moderately basic solution in water. Sodium carbonate is well known domestically for its everyday use as a water softener.
- Cas No:
- 5968-11-6
- Formula:
- Na2CO3. H2O
- Molecular Weight:
- 124.00
- Character:
- White or almost white crystalline powder or colorless crystals, freely soluble in water, practically insoluble in ethanol (96%)
- Packaging:
- 50 Kg. HDPE bags with polyliner inside.
- Storage:
- To be stored in air tight container.
Available Grade & Specification
| Item | BP | USNF | FCC | ACS Grade |
|---|---|---|---|---|
| Assay | 83.0% - 87.5% of Na2CO3 | NLT 99.5% & NMT100.5% of Na2CO3(Anhydrous basis) | 99.5% - 100.5 of Na2CO3 after drying | NLT 99.5% As Na2CO3. H2O |
| Identification | Positive | Positive | Positive | |
| Appearance of solution | Pass the test | |||
| Alkali Hydroxide of bicarbonates | Pass the test | |||
| Chloride | 125 PPM Max | 0.001% Max | ||
| Sulphate | 250 PPM Max | 0.004% Max | ||
| Arsenic | 5 PPM Max | 1 PPM Max | ||
| Heavy Metals | 50 PPM Max | 0.001% Max | 4 PPM Max | 5 PPM Max |
| Organic volatile impurities | Meets the requirement | |||
| Water | 1.0% Max | NMT 0.5% Max | NMT 1.0% Max | 1.0 % Max |
| Insoluble matter | 0.01% | |||
| Nitrogen compound as(N) | 0.001% Max | |||
| Phosphate(PO4) | 0.001% Max | |||
| Silica(SiO4) | 0.005% Max | |||
| Ammonium hydroxide precipitate | 0.01% Max | |||
| Calcium & Magnesium precipitate | 0.01%Max | |||
| Potassium | 0.005% | |||
| Iron | 50 PPM Max | 5 PPM Max |