BORAX (SODIUM TETRABORATE DECAHYDRATE) AR GRADE
BORAX (SODIUM TETRABORATE DECAHYDRATE) AR GRADE
| Article No | 510808 |
| Grade | AR\ACS |
| Purity | 99.5% |
| CAS No. | 1303-96-4 |
| Molecular Formula | Na2B4O7·10H2O |
| Molecular Weight | 381.37 |
| H.S. Code | 2840.1100 |
| Shelf Life | 60 Months |
Physical properties
| Physical state at 20 °C | Solid |
| Colour | White crystalline |
| Odour | Odorless |
| pH value | 9.2 |
| Melting point/ Freezing point | 62 °C |
| Boiling point | 320 °C |
| Density | 1.73 g/cm³ |
| Solubility in water | 39 g/l at 20 °C – completely soluble |
Specifications
| Appearance | White or almost white, crystalline powder, colourless crystals or crystalline masses, efflorescent |
| Assay | 99-103% |
| pH | 9-9.6 |
| Solubility | Soluble in water, very soluble in boiling water, freely soluble in glycerol |
| Identification | Passes test |
| Sulfates | Max 50 ppm |
| Ammonium | Max 10 ppm |
| Calcium | Max 100 ppm |
| Packings | 250-500g – 1kg |
