Litmus Paper (Blue)

Starting at 100.00

Blue Litmus Paper, a pH indicator, turns red under acidic conditions. It remains blue or changes to purple in neutral or alkaline solutions. Widely used in laboratories and educational settings, it aids in quick pH testing. Compact and easy to use, it’s an essential tool for chemical analysis.

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Blue Litmus Paper is a simple yet effective tool for determining the pH level of a solution. Its distinctive blue color shifts to red in acidic environments while staying blue or transitioning to purple in neutral to alkaline conditions. This makes it an indispensable asset in laboratories, classrooms, and various industries for quick and reliable pH testing. Its compact size and straightforward application make it accessible to both professionals and amateurs alike, ensuring accurate results in a wide range of applications from educational experiments to industrial quality control processes.

Key Features

  1. pH Indicator: Changes color from blue to red in acidic solutions.
  2. Versatile: Suitable for testing a wide range of liquids.
  3. Portable: Compact size allows for easy transportation and storage.
  4. Quick Results: Provides rapid indication of pH levels.
  5. User-Friendly: Simple to use, making it ideal for both professionals and beginners.


  1. Handle with dry hands to avoid contamination.
  2. Store in a cool, dry place away from moisture.
  3. Use clean containers for the solutions being tested.
  4. Avoid touching the test area to prevent interference with results.
  5. Dispose of used litmus paper properly, following relevant safety guidelines.

Frequently Asked Questions (FAQs)

Question: Can blue litmus paper be reused?
Answer: No, it’s a one-time-use indicator. Once it changes color, it cannot be restored.

Question: What pH range does blue litmus paper test?
Answer: Blue litmus paper primarily indicates pH levels ranging from 4.5 to 8.3.

Question: How long does it take for blue litmus paper to change color?
Answer: The color change is instantaneous upon contact with the solution.

Question: Can blue litmus paper test the pH of solids?
Answer: No, it’s designed for testing the pH of liquids only.

Question: Is blue litmus paper safe to use?
Answer: Yes, it’s safe when used as directed. However, proper handling and disposal practices should be followed.


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