Buffer Solution pH 4 & pH 7 – 20 ml Sachets (Pack of 10)

Buffer Solution pH 4 & pH 7 is supplied as a convenient pack of 10 individual 20 ml sachets, designed for educational laboratory use. These standard buffer solutions are used for calibration and checking of pH meters and pH probes, as well as for demonstrating the concept of buffering in chemistry lessons.

The sachets contain accurately prepared buffer solutions at pH 4 and pH 7, representing acidic and neutral reference points. The single‑use sachet format ensures freshness, consistency, and ease of use while minimising contamination and waste in the classroom or preparation room.

With no UN number and no assigned CAS number, these buffer solutions are not classified as hazardous for transport when handled appropriately and in accordance with standard laboratory procedures.

Key Features

• Buffer Solutions at pH 4 and pH 7
• Pack of 10 sachets, each containing 20 ml
• Ideal for pH meter and probe calibration
• Single‑use sachets for accuracy and convenience
• No UN number – non‑hazardous for standard handling
• Clearly labelled for safe storage and use
• Suitable for school chemistry laboratories and prep rooms

Ideal for School Science Lessons

Buffer Solution pH 4 & pH 7 sachets are well suited to KS3, GCSE, and A‑Level science lessons, particularly where students study acids, bases, pH measurement, and chemical equilibria. All use should be conducted under appropriate supervision and in line with school laboratory guidance.

• Calibrating pH meters and probes
• Demonstrating the concept of buffer solutions
• Supporting lessons on acids, bases, and pH scale
• Ensuring accurate pH measurement in practical work
• Developing good practice in laboratory measurement and technique

Accurate, convenient, and curriculum‑relevant, Buffer Solution pH 4 & pH 7 – 20 ml Sachets (Pack of 10) are an essential laboratory consumable that supports reliable pH measurement while reinforcing correct calibration procedures and good laboratory practice.