Buffer Solution pH 3 (Phthalate) – 500ml

Buffer Solution pH 3 (Phthalate) is a professionally prepared acidic buffer solution supplied in a convenient 500ml bottle, ideal for use in school and college science laboratories. Designed to maintain a stable pH of approximately 3, this solution ensures consistent and reliable results for practical experiments where accurate pH control is essential.

This product does not have an assigned CAS or UN number (CAS: n/a, UN: NR) as it is a formulated buffer rather than a single chemical substance. The phthalate‑based buffering system resists changes in pH when small amounts of acids or alkalis are introduced, making it particularly suitable for controlled educational investigations.

Supplied ready to use and clearly labelled, this buffer solution saves preparation time for technicians and supports safe, efficient laboratory practice.

Key Features

• Phthalate‑based buffer solution
• Maintains a stable pH of 3
• Pack size: 500ml
• UN No: NR
• CAS No: n/a (prepared buffer solution)
• Supplied ready to use with no preparation required
• Clearly labelled for safe handling and storage
• Designed for routine use in educational laboratories

Ideal for School Science Lessons

Buffer Solution pH 3 (Phthalate) is well suited to GCSE and A Level chemistry as well as biology lessons, where controlled pH conditions are required to support accurate experimentation and observation.

• Demonstrating the principles of buffer solutions
• Supporting lessons on acids, pH, and pH stability
• Calibrating pH meters and probes
• Investigating the effect of pH on enzyme activity
• Providing consistent conditions for comparison during experiments

Reliable, easy to use, and curriculum aligned, Buffer Solution pH 3 (Phthalate) helps students develop a clear understanding of pH control and buffering action while enabling safe, accurate, and engaging practical science lessons.