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VWR Potassium sulphate ≥99.0%, AnalaR NORMAPUR® ACS, Reag. Ph. Eur. analytical reagent
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Formula: K₂SO₄
CAS Number: 7778-80-5
Specifications:
| Application | Analytical Chemistry | ||
| Storage Temperature | Ambient | ||
| Product Type | Laboratory Chemical | Forms | Powder |
| Product Brand | VWR | ||
| Product Grade | Analytical grade | Formula | K₂SO₄ |
VWR Potassium Sulphate (K₂SO₄), also known as dipotassium sulfate, is a high-purity inorganic salt with a minimum assay of 99.0%. Conforming to AnalaR NORMAPUR®, Reag. Ph. Eur., and ACS analytical standards, it is widely used in gravimetric analysis, reagent-grade formulations, nutrient media, and pharmaceutical testing. It exhibits excellent thermal stability, low water insolubility, and tightly controlled impurity levels.
Key Features and Benefits
- Assay ≥99.0%, suitable for high-precision analytical procedures
- Conforms to European Pharmacopoeia (Ph. Eur.), ACS, and AnalaR NORMAPUR® standards
- Low levels of heavy metals, iron, manganese, and chloride
- Highly soluble in water and stable under ambient storage
- Versatile usage across food, pharma, agriculture, and chemical testing
Applications
- Reagent in gravimetric and quantitative chemical analysis
- Component in nutrient formulations for cell and microbial culture
- Reference salt in pharmaceutical testing and buffer solutions
- Analytical reagent in environmental and industrial testing
- Quality control in fertilizers and soil chemistry
Technical Specifications
| Property | Specification |
|---|---|
| Assay | ≥ 99.0% |
| Heavy Metals (as Pb) | ≤ 10 ppm |
| Insolubility in Water | ≤ 50 ppm |
| Chloride (Cl⁻) | ≤ 5 ppm |
| Iron (Fe) | ≤ 10 ppm |
| Manganese (Mn) | ≤ 2 ppm |
| Conformity | Reag. Ph. Eur. – Passes test |
| CAS Number | 7778-80-5 |
| MDL Number | MFCD00011388 |
| Molecular Formula | K₂SO₄ |
| Molecular Weight | 174.26 g/mol |
| Melting Point | 1069 °C |
| Boiling Point | 1698 °C (at 1013 hPa) |
| Density (20 °C) | 2.66 g/cm³ |
| Merck Index | 13,07759 |
| EINECS Number | 231-915-5 |
| Storage Conditions | Ambient |
Packaging Information
| Catalog Number | Pack Type | Quantity |
|---|---|---|
| 26997.293 | Plastic bottle for solids | 1 kg |
VWR Potassium Sulphate, AnalaR NORMAPUR® Reag. Ph. Eur., ACS grade, is a trusted analytical reagent offering high purity, low trace impurities, and broad compatibility in regulated laboratory environments. Its performance in titrimetric analysis, nutrient formulations, and reference standards makes it ideal for pharmaceutical, agricultural, and environmental laboratories.