Whatman® indicator papers

The Whatman Acid-Alkali Universal pH Indicators are mixed-indicator tests designed for rapid, accurate, and reliable pH solution testing. Available in blue and red litmus papers and phenolphthalein strips, these indicators provide instant pH readings and cover a wide range of routine pH testing. They are convenient, portable, and ideal for field use.

The mixed-indicator technology provides an instant color change when the strips come into contact with solutions, indicating the pH of the sample. Blue litmus paper turns red in acidic solutions, while red litmus paper turns blue in alkaline solutions. Phenolphthalein strips are colorless in acidic solutions and pink in basic solutions, with a specific transition range at pH 8.3 to pH 10.

Key Features & Benefits:

1. Instant pH Readings:
   • Fast, reliable results for quick determination of pH, suitable for both routine testing and field applications.
2. Mixed-Indicator Technology:
   • Provides accurate color change for identifying acidic or alkaline pH values, ensuring high precision.
3. Wide pH Range:
   • Useful for pH testing solutions in the range of approximately pH 5 to pH 8 for litmus papers and up to pH 10 for phenolphthalein strips.
4. Portable and Convenient:
   • Available in reels and strips, these easy-to-use indicators are designed for portable applications, making them perfect for field use and educational purposes.
5. No Complex Equipment Required:
   • The simple design eliminates the need for complex devices like pH meters or electrodes, offering an easy, cost-effective alternative.
6. Ideal for Educational Use:
   • Blue and red litmus papers are particularly recommended for education due to their simplicity and ease of use in teaching laboratory experiments.

Applications:

• Educational Use: Widely used in classrooms and science labs for teaching acid-base chemistry and pH testing experiments.
• Routine pH Testing: Ideal for field testing, environmental monitoring, and quality control in various industries, including food processing, pharmaceuticals, and water quality testing.
• Chemical Analysis: Used for titrations, pH adjustments, and analysis of acidic and basic solutions.
• Industrial Use: Suitable for monitoring pH levels in industrial processes such as cleaning solutions, fertilizers, and chemical production.

Packaging Options:

Storage:

• Store at ambient temperature in a cool, dry place to maintain the effectiveness of the pH indicators.

Whatman Acid-Alkali Universal pH Indicators provide a simple, cost-effective, and accurate solution for pH testing in laboratories, industries, and field applications. With their easy-to-use format, instant color changes, and reliable performance, these pH indicators are essential tools for acid-base testing and chemical analysis.