Litmus Solution – 500ml (Laboratory Indicator Solution)

This reliable Litmus Solution is supplied in a 500ml bottle and is widely used as a dependable acid–alkali indicator in school science laboratories. With CAS Number 1393‑92‑6 and no UN classification (NR), this indicator solution is safe and suitable for routine classroom use across a range of chemistry lessons.

Litmus is a classic pH indicator that changes colour clearly and quickly, making it ideal for demonstrating core chemical concepts. Its ease of use and strong colour response make it perfect for engaging, hands‑on science activities at various key stages.

Key Features

• High‑quality Litmus Solution
• Supplied in a convenient 500ml bottle
• Reliable indicator for acid–base testing
• CAS No.: 1393‑92‑6
• UN Number: NR (non‑regulated)
• Produces clear and rapid colour changes for easy interpretation

Ideal for School Science Lessons

Litmus solution is a staple resource for KS3 and GCSE chemistry activities and is perfect for teaching fundamental ideas about acids, alkalis, and indicators.

• Ideal for investigating pH and indicator behaviour
• Suitable for acid–alkali identification and classification tasks
• Useful for demonstrating neutralisation and chemical reactions
• Perfect for practical experiments exploring everyday acids and bases
• Provides clear visual results that support student understanding

This 500ml Litmus Solution offers excellent consistency and reliability, making it an essential resource for supporting high‑quality, practical science teaching.