Buffer PH 2
| Density: | 1.01g/cm3 (20 °C) |
| HS code: | 38220000 |
| Storage | Without limitations. |
| SDS | Avalilable |
| Odour: | Odourless |
| Form: | Liquid |
| Color: | Colourless |
| Solubility in water: | (20 °C) soluble |
| Boiling point: | 109 °C |
| Melting point: | -5 °C |
| pH-Value 20°C | 2.00 ± 0.02% | |
| 0 °C | ΔpH | +0.01 |
| 5 °C | ΔpH | +0.01 |
| 10 °C | ΔpH | +0.01 |
| 15 °C | ΔpH | ±0.00 |
| 20 °C | ΔpH | ±0.00 |
| 25 °C | ΔpH | ±0.00 |
| 30 °C | ΔpH | ±0.00 |
| 35 °C | ΔpH | ±0.00 |
| 40 °C | ΔpH | ±0.00 |
| 50 °C | ΔpH | ±0.00 |
Buffer pH 2 is a pharmacopeial-grade reference solution designed for use in pharmaceutical quality control, laboratory calibration, and analytical testing for the calibration and performance verification of pH meters, electrodes, and other pH-sensitive analytical instruments requiring highly acidic reference standards.
🏭⚗️ Production
Prepared under strictly controlled GMP- and pharmacopeial-compliant conditions to ensure precise pH, chemical stability, and minimal contamination. The pH 2 value is achieved using high-purity acidic salts or mineral acids (commonly potassium chloride, potassium hydrogen phthalate, or diluted strong acids) dissolved in deionized water, ensuring a stable and reproducible acidic reference system. The solution is supplied in chemically resistant, sealed, and light-protected containers to prevent contamination, CO₂ absorption, or degradation. Each batch is validated according to USP <791>, EP 2.2.3, and relevant pharmaceutical testing standards to ensure accuracy, uniformity, and reproducibility.
🔬 Properties
A clear, colorless aqueous solution with a defined pH of 2.00 ± specified tolerance at 25 °C. Exhibits excellent stability under recommended storage conditions. Minor changes in pH may occur after prolonged exposure to air, temperature fluctuations, or light; gentle mixing restores homogeneity without affecting the reference value.
🧪 Applications
Used in pharmaceutical, analytical, and educational laboratories for calibration, validation, and performance testing of pH meters and electrodes, especially for measurements in strongly acidic ranges. Suitable for method validation, routine QC analysis, equipment qualification (IQ/OQ/PQ), and compliance with pharmacopeial standards requiring acidic pH references. Ideal for ensuring accurate measurements in formulation development, chemical stability studies, process control, and laboratory research.
⚠️ Safety
Considered corrosive and should be handled according to standard laboratory safety practices. Avoid ingestion, inhalation, and direct contact with skin and eyes. Use appropriate personal protective equipment, including gloves, goggles, and a lab coat. Store in tightly sealed, light-protected containers in a cool, dry environment. Dispose of according to pharmaceutical laboratory waste regulations and environmental safety guidelines.
