Description
Specifications Table
Product Name – Disodium tetraborate/hydrochloric acid, pH 8 AVS TITRINORM® buffers at 20 °C
Quantity/Pack Size – 1 L
Form – Liquid (ready-to-use solution)
Grade – Analytical Reagent (AR), NIST-traceable
Application – pH meter calibration, acid-base titrations, analytical chemistry
Product Overview
This Disodium tetraborate/hydrochloric acid pH 8 AVS TITRINORM® buffer solution is engineered for high-precision laboratory applications where accurate pH measurement is critical. Formulated with analytical-grade Disodium tetraborate (borax) and hydrochloric acid, this buffer maintains a stable pH of 8.0 at 20 °C, ensuring reliable calibration for pH meters, electrodes, and titration setups. The solution is NIST-traceable, guaranteeing compliance with international standards for analytical accuracy and reproducibility. Its ready-to-use liquid form eliminates the need for dilution or preparation, saving time while reducing contamination risks. The buffer’s chemical stability and resistance to microbial growth extend its shelf life, making it ideal for frequent use in research, quality control, and industrial laboratories. Housed in a high-density polyethylene (HDPE) bottle, the solution is protected from light and atmospheric CO₂, preserving its integrity over prolonged storage. Whether used in routine pH meter maintenance or critical titration protocols, this buffer delivers consistent performance, minimizing measurement errors and enhancing experimental reliability.
FAQs
1. What is the shelf life of this pH 8 buffer solution when stored unopened?
The unopened buffer solution has a shelf life of 24 months from the date of manufacture when stored at room temperature (15–25 °C) in its original packaging. Avoid exposure to direct sunlight or extreme temperatures.
2. Can this buffer be used for calibrating pH meters in non-aqueous solvents?
This buffer is designed for aqueous systems and may not provide accurate calibration in non-aqueous or mixed-solvent environments. For such applications, specialized buffers compatible with organic solvents are recommended.
3. Is this buffer compatible with glass and epoxy-body pH electrodes?
Yes, the solution is fully compatible with both glass and epoxy-body pH electrodes. Its balanced ionic strength ensures stable readings without damaging the electrode membrane or reference junction.
4. How should I dispose of expired or unused buffer solution?
Dispose of the solution in accordance with local laboratory waste regulations. Neutralize with a compatible acid or base if required, then collect in a designated chemical waste container for professional disposal.
5. Does this buffer require temperature compensation during calibration?
The pH 8 value is standardized at 20 °C. For precise results, use temperature compensation on your pH meter if calibrating at temperatures significantly above or below this reference point.
