Description
Specifications Table
Product Name – Disodium hydrogen phosphate/sodium hydroxide, pH 11 AVS TITRINORM® buffers at 20 °C
Quantity/Pack Size – 1 L
Form – Liquid
Grade – Analytical Reagent (AR)
Application – pH meter calibration, buffer preparation, titrations
Product Overview
Disodium hydrogen phosphate/sodium hydroxide, pH 11 AVS TITRINORM® buffer solution is a high-precision calibration standard designed for laboratory applications requiring exact pH measurements. Formulated with analytical-grade reagents, this buffer ensures consistent accuracy at 20°C, making it ideal for critical titrations, instrument calibration, and research procedures. The solution adheres to stringent quality controls, guaranteeing stability and reproducibility in results. Its ready-to-use format eliminates preparation errors, while the AVS TITRINORM® certification confirms compliance with international standards. The alkaline pH 11 value provides a reliable reference point for high-pH measurements, ensuring compatibility with a wide range of electrodes and analytical instruments. Whether used in routine lab work or specialized research, this buffer solution delivers unmatched precision, reducing variability in experimental outcomes. The 1 L packaging offers convenience for frequent use while maintaining long-term stability when stored properly.
FAQs
1. What is the shelf life of this pH 11 buffer solution?
The solution remains stable for 12 months from the date of manufacture when stored unopened in a cool, dry place away from direct sunlight. Once opened, use within 3 months for optimal accuracy.
2. Can this buffer be used with all types of pH electrodes?
Yes, the pH 11 AVS TITRINORM® buffer is compatible with most glass and combination pH electrodes. However, always verify electrode specifications for high-alkaline range compatibility.
3. How should I store this buffer solution after opening?
After opening, tightly recap the bottle and store it at room temperature (15-25°C). Avoid exposure to temperature fluctuations or contaminants that could alter the pH value.
4. Is this buffer suitable for trace metal analysis?
While primarily designed for pH calibration, the analytical reagent grade minimizes trace metal contamination. For ultra-trace analysis, consider metal-free buffer alternatives.
5. What alternatives exist for pH 11 calibration?
Alternatives include borate buffers or custom-prepared sodium hydroxide solutions, but these may require additional validation. AVS TITRINORM® buffers offer pre-certified accuracy for convenience.
