Description
Soda ash; Washing soda; Soda crystals
| CAS | 5968-11-6 |
| Molecular Formula | Na2CO3.H2O |
| Molecular Weight | 124.00 |
| Shelf Life | 60 Months |
| Physical Properties | |||
| Physical State at 20 °C | Solid | Colour | White powder |
| Odour | Odorless | pH Value | 11.6 |
| Boiling Point [°C] | 400°C | Density [g/cm3] | 2.532 |
| Solubility in Water [% weight] | 22 g/100mL (20°C) | ||
| Specifications | |||
| Appearance | White crystalline powder | Assay | Min 99.9% |
| Substnace Precipitated By Nh4Oh | Max 0.01% | Arsenic (As) | Max 0.0001% |
| Chloride (Cl) | Max 0.001% | Heavy Metal (As Pb) | Max 0.0005% |
| Insoluble Matter (10% in Water) | Max 0.01% | Iron (Fe) | Max 0.0005% |
| Loss On Dryig (At 150°C) | 12 – 15% | Nitrogen Compounds (As N) | Max 0.001% |
| Phosphate (Po4) | Max 0.0005% | Potassium (K) | Max 0.005% |
| Silica (Sio2) | Max 0.005% | Sulphur Compounds (As So4) | Max 0.004% |
| Calcium (Ca) | Max 0.03% | Magnesium (Mg) | Max 0.005% |
| Dangerous Goods Information | |||
| UN Number | – | DG Class | – |
| Safety Information & Hazard Symbols | |
| Symbol | GHS07 |
| Signal Word | Warning |
| Hazard Statement | H319 |
| Precaution Statement | P305 + P351 + P338 |















