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VWR Sodium sulphate decahydrate ≥99.0%, AnalaR NORMAPUR®
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Specifications:
| Application | Analysis | ||
| Storage Temperature | Ambient | ||
| Product Type | Laboratory Chemical | Forms | Powder |
| Product Brand | VWR | ||
| Product Grade | Analytical grade | Formula | Na₂SO₄·10H₂O |
VWR® Sodium Sulphate Decahydrate is a high-purity hydrated salt with a minimum assay of 99.0%, produced under AnalaR NORMAPUR® standards for use in analytical, industrial, and research laboratories. Supplied as crystalline powder, it is widely used for drying organic solvents, analytical precipitation reactions, and in sample preparation workflows.
Key Features
- High Purity (≥99.0%) – Ideal for analytical and reagent-grade use
- AnalaR NORMAPUR® Grade – Trusted quality for laboratory applications
- Decahydrate Form (10H₂O) – Suitable for controlled water-release conditions
- Low Impurities – Strict limits on heavy metals, chlorides, phosphates, and transition metals
- Stable Solid Form – Easy to weigh, dissolve, and store
Specifications
| Property | Specification |
|---|---|
| Chemical Name | Sodium Sulphate Decahydrate |
| Formula | Na₂SO₄·10H₂O |
| Molecular Weight | 322.20 g/mol |
| CAS Number | 7727-73-3 |
| Assay | ≥99.0% |
| pH (5% solution) | 5.2 – 9.2 |
| Chloride (Cl⁻) | ≤5 ppm |
| Phosphate (PO₄³⁻) | ≤5 ppm |
| Calcium (Ca²⁺) | ≤50 ppm |
| Iron (Fe) | ≤5 ppm |
| Magnesium (Mg²⁺) | ≤30 ppm |
| Potassium (K⁺) | ≤50 ppm |
| Heavy Metals (as Pb) | ≤3 ppm |
| Insolubility in Water | ≤100 ppm |
| Melting Point | 32.4 °C |
| Boiling Point | 1429 °C (anhydrous) |
| Density | 1.464 g/cm³ (20 °C) |
| Storage Temperature | Ambient |
| Packaging Type | Plastic bottle |
| Pack Size | 1 kg |
Applications
- Analytical Chemistry – Reagent preparation and drying agents
- Sample Processing – Removal of moisture from organic solvents
- Gravimetric Analysis – Sulfate precipitation and determination
- Industrial Use – Food-grade processing, detergents, and manufacturing
- Educational Labs – Teaching basic solubility, hydration, and crystallization
VWR® Sodium Sulphate Decahydrate, ≥99.0%, AnalaR NORMAPUR®, provides laboratory professionals with a reliable, high-purity reagent for analytical and industrial workflows. Its consistent quality and compliance with international standards make it a preferred choice for laboratories requiring stringent control of contaminants and reproducible results.