VWR Potassium sulphate ≥99%, GPR RECTAPUR®

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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 (≥99%), supplied under the GPR RECTAPUR® grade, is a high-purity inorganic salt widely used in analytical chemistry, agriculture, environmental testing, and industrial processes. With an assay of ≥99% and strict impurity limits, it provides reliable performance and reproducibility for laboratory and technical applications.

Potassium sulphate is commonly employed as a standard reagent, as well as in the preparation of fertilizers, buffer solutions, and analytical methods. Its high melting and boiling points make it a stable salt for high-temperature applications.

Key Features

  • High Purity: Assay ≥99% (GPR RECTAPUR® quality).
  • Controlled Impurities: Low levels of heavy metals, chloride, ammonium, nitrate, and iron.
  • Stable Solid: White crystalline salt with high melting point (1069 °C).
  • Versatile Use: Suitable for both analytical and industrial chemistry applications.
  • Reliable Quality: Consistent batch-to-batch purity for reproducibility.

Applications

  • Analytical Chemistry: Reagent in standard laboratory tests and methods.
  • Environmental & Agricultural Studies: Fertilizer formulation and soil analysis.
  • Buffer Preparation: Component in ionic solutions and analytical buffers.
  • Industrial Applications: Glass, ceramics, and specialty manufacturing processes.
  • Teaching Laboratories: Common inorganic salt for training and demonstrations.

Specifications

PropertyDetails
Assay (Purity)≥99%
CAS Number7778-80-5
Molecular FormulaK₂SO₄
Molecular Weight174.26 g/mol
AppearanceWhite crystalline solid
Melting Point1069 °C
Boiling Point1698 °C
Density (20 °C)2.66 g/cm³
Heavy Metals (as Pb)≤20 ppm
Chloride (Cl⁻)≤50 ppm
Ammonium (NH₄⁺)≤20 ppm
Nitrate (NO₃⁻)≤50 ppm
Iron (Fe)≤10 ppm
Storage TemperatureAmbient
Merck Index13,07759

Packaging & Ordering Information

Catalog NumberDescriptionPack SizeContainer
26994.293VWR® Potassium Sulphate ≥99%, GPR RECTAPUR®1 kgPlastic bottle
26994.362VWR® Potassium Sulphate ≥99%, GPR RECTAPUR®5 kgPlastic bottle

Safety Information

  • Hazard Classification: Generally considered safe but may cause irritation in dust form.
  • Precautions: Handle with care, use gloves, goggles, and avoid inhalation of fine particles.


VWR® Potassium Sulphate ≥99%, GPR RECTAPUR® is a high-purity inorganic salt suitable for analytical chemistry, fertilizer studies, environmental testing, and industrial processes. With ≥99% assay and controlled impurity levels, it provides consistent quality for laboratory and bulk use.

  • Pack Size:   1kg 5kg
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