Sodium potassium Tartarate (ROCHELLE SALT).4H20
Sodium potassium Tartarate (ROCHELLE SALT).4H20
| Article No. | 542708 |
| Grade | AR/ACS |
| Purity | 99% |
| CAS No. | 6381-59-5 |
| Molecular Formula | C₄H₄KNaO₆·4H₂O |
| Molecular Weight | 282.22 |
| H.S. Code | 2918.1390 |
| Shelf Life | 60 Months |
Physical properties
| Physical state at 20 °C | Solid |
| Colour | Colorless crystalline |
| Odour | Odorless |
| pH value | 7.0 – 8.5 |
| Melting point/Freezing point | 70°C |
| Boiling point | 220°C |
| Density | 1.79 g/cm³ |
| Solubility in water | Soluble in water |
Specifications
| Appearance | White or almost white, crystalline powder or colourless, transparent crystals. |
| Assay | 98- 101% |
| Water solubility | Very soluble in water |
| pH | 7 – 8.5 |
| Chloride (Cl) | Max 100 ppm |
| Sulphate (SO₄) | Max 50 ppm |
| Acidity or alkalinity | Passes test |
| Barium and oxalates | Passes test |
| Calcium | Max 200 ppm |
| Water content | 24-26.5 % |
| Identification | It gives reaction of tartrates – It gives reaction of potassium -It gives reaction of sodium |
| Packings | 500 gm |
