Buffer Tablets pH 4 – Pack of 50

These high‑quality pH 4 Buffer Tablets are supplied in a convenient pack of 50 and provide a simple, reliable way to prepare accurate pH calibration solutions in school laboratories. With no UN classification (NR) and no assigned CAS number, these tablets are safe for routine use in educational environments.

Each tablet dissolves easily to prepare 100ml of pH 4 buffer solution, offering excellent convenience and consistency for calibrating pH meters, sensors, and datalogging equipment. Ideal for lessons that require repeatable, accurate pH measurements.

Key Features

• Pack of 50 pH 4 buffer tablets
• Each tablet makes 100ml of calibration buffer
• Provides a stable and reliable pH 4 reference solution
• UN Number: NR (non‑regulated)
• Easy to use—simply dissolve in distilled water
• Excellent for routine calibration of pH meters and probes

Ideal for School Science Lessons

pH 4 buffer tablets are widely used in KS3, GCSE, and A‑Level chemistry and biology, supporting experiments where accurate pH measurement and calibration are essential.

• Perfect for calibrating pH meters before practical investigations
• Useful in acid–base studies and pH‑dependent reactions
• Supports enzyme activity experiments requiring acidic conditions
• Ensures accuracy in titrations and quantitative analysis
• Ideal for datalogging activities involving pH changes

Reliable, accurate, and easy to prepare, this pack of 50 pH 4 Buffer Tablets is an excellent resource for ensuring consistent calibration across school science investigations.