| Grade Details | |
|---|---|
| Perticulars | Specifications |
| Chemical Name | Sodium Sulphite |
| Chemical Formula | Na₂SO₃ |
| CAS Number | 7757-83-7 |
| Appearance | Clear to slightly hazy colorless solution |
| Assay (as Na₂SO₃) | 20–30% (w/w) or as per customer requirement |
| SO₂ Content | Approx. 13–19% (w/w) |
| pH (10% solution) | 9.0 – 10.5 |
| Specific Gravity (@25°C) | 1.20 – 1.35 |
| Solubility | Completely soluble in water |
| Iron (Fe) | < 10 ppm |
| Chloride (Cl⁻) | < 0.05% |
| Heavy Metals (as Pb) | < 2 ppm |
Sodium Sulphite Extra Pure Grade
S.P. Chemicals is a reputed Sodium Sulphite Extra Pure Manufacturer in India, offering high-purity chemical compounds designed for laboratory, analytical, and specialised industrial applications. Our Sodium Sulfite Extra Pure is known for its exceptional clarity, low impurity levels, and reliable performance in sensitive procedures. It is widely used in analytical chemistry, as a reagent in organic synthesis, and in high-precision water treatment processes where superior purity is essential. As a trusted Sodium Sulphite Extra Pure Supplier in India, we ensure consistent product quality, flexible packaging, and prompt delivery to meet the demands of research institutions, laboratories, and high-tech industries. S.P. Chemicals is also a recognised Sodium Sulphite Extra Pure Exporter in India, supplying globally compliant, export-grade chemicals to international clients who rely on purity, precision, and performance.
