Lugol’s Iodine Solution – 500ml (1% Iodine in 2% Potassium Iodide)

This high‑quality Lugol’s Iodine Solution is supplied in a 500ml bottle and contains 1% iodine dissolved in 2% potassium iodide. Commonly used as a biological stain and test reagent, this versatile solution provides consistent performance for routine laboratory work in schools. The product has no UN classification (NR).

Lugol’s Iodine is widely used in biology and general science teaching for testing starch, enhancing microscopic observations, and preparing samples. Its strong and reliable colour change makes it ideal for hands‑on experiments across different key stages.

Key Features

• Premium‑quality Lugol’s Iodine Solution
• Composition: 1% iodine in 2% potassium iodide
• Supplied in a 500ml bottle
• Reliable biological reagent for microscopy and staining
• UN Number: NR (non‑regulated)
• Suitable for repeated use in educational science laboratories

Ideal for School Science Lessons

Lugol’s Iodine Solution is a staple resource for KS3, GCSE, and A‑Level biology and supports a variety of microscopy and biochemical experiments.

• Perfect for the classic starch test (blue‑black colour change)
• Commonly used for cell staining to improve contrast under a microscope
• Ideal for examining plant cells, starch grains, and food samples
• Helps students understand iodine–starch interactions
• Supports practical lessons in enzymes, digestion, and food testing

Reliable, easy to use, and highly versatile, this 500ml Lugol’s Iodine Solution is an essential reagent for delivering engaging and accurate science lessons in schools.