VWR Disodium hydrogen phosphate ≥99%, GPR RECTAPUR®

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Specifications:
Storage Temperature Ambient
Product Type Laboratory Chemical Forms Powder
Product Brand VWR
Product Grade Analytical grade Formula Na₂HPO₄

Specifications:

FeatureTest Results
AssayMinimum 99.0%
pH (25°C; 5%)8.7 - 9.3
Heavy metals (as Pb)Maximum 10 ppm
Insolubility in waterMaximum 100 ppm
Loss on drying (105°C)Maximum 0.2%
Chloride (Cl)Maximum 20 ppm
Sulfate (SO4)Maximum 50 ppm
Copper (Cu)Maximum 3 ppm
Iron (Fe)Maximum 10 ppm
Potassium (K)Maximum 100 ppm
Lead (Pb)Maximum 10 ppm
Conforms to ACS (American Chemical Society)Passes test
Conforms to Reag. Ph.Eur. (European Pharmacopoeia)Passes test

Disodium hydrogen phosphate, anhydrous (Na₂HPO₄), is a commonly used buffering agent and pH stabilizer in laboratory applications. Its primary use is in analytical chemistry, biochemical assays, and buffer solutions. This chemical is particularly useful for maintaining a stable pH in reactions, especially in phosphate buffers, making it essential for many biological and chemical applications. It is also employed in pharmaceutical formulations and industrial processes.

Key Features:

  • High Purity: The product is of AnalaR NORMAPUR® quality, ensuring minimal contaminants and high-grade purity for sensitive applications.
  • Buffering Capability: Ideal for creating buffer solutions with a stable pH between 8.7 and 9.3.
  • Compliance with Standards: Conforms to ACS (American Chemical Society) and Reag. Ph.Eur. standards, ensuring it meets the highest laboratory and pharmaceutical requirements.

Applications:

  • Biochemistry: Used in laboratory settings for preparation of phosphate buffers in enzyme assays, chromatography, and other applications requiring pH stabilization.
  • Pharmaceutical Industry: Employed in the formulation of drugs where pH control is essential for stability and efficacy.
  • Environmental Testing: Used in water testing and analysis to control pH and stabilize the sample environment.
  • Chemical Synthesis: Used in reactions that require a consistent alkaline pH.

  • Pack Size:   1kg 500g 5kg
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