Universal Indicators – pH Testing Reagents for Laboratory & Educational Use

Universal Indicators are versatile pH testing tools used to measure the acidity or alkalinity of a wide range of solutions. Available as liquid indicator solutions, pH indicator strips, or paper rolls, universal indicators change color according to the pH level of a sample, providing a visual scale from strongly acidic to strongly alkaline (typically pH 1–14). They are essential in chemistry labs, school science classes, water testing, and quality control processes.

Universal indicators contain a mixture of dyes that exhibit a range of colors corresponding to specific pH values, making it easy to estimate the pH of unknown solutions quickly and effectively. Their intuitive color change and broad pH coverage make them ideal for both qualitative testing and demonstration purposes.

Key Features

• Wide pH detection range (usually pH 1–14)

• Clear, visible color change with pH variation

• Available in solution form or on strips/paper

• Easy to use for quick pH estimation

• Affordable and reusable (strips) or ready-to-use (solution)

Applications

• Chemistry and biology laboratories

• Educational science experiments and demonstrations

• Water quality testing (tap, pool, aquarium)

• Industrial and environmental monitoring

• Clinical sample pH checks

Universal Indicators are a fundamental tool for anyone needing fast, reliable pH estimation across a broad range of solutions, combining simplicity with effective visual feedback.