Litmus Papers Red+Blue

Blue Red Litmus Indicators or Litmus Paper 200 Leaves/Box are most used in chemical laboratories in Bangladesh. Used in School, College, and University laboratories.

Blue and Red Litmus are a water-soluble mixture of different dyes extracted from lichen. Dyeing filter paper either red or blue with this ink creates one of the oldest forms of testing alkalinity and acidity. Sold in boxes of 100 100 strips of paper.

• Red litmus paper turns blue in basic (alkaline) solutions and remains red in acidic solutions.
• Blue litmus paper turns red in acidic solutions and stays blue in basic solutions.

It’s commonly used in laboratories, educational settings, and various industries, supplied by Padma Scientific Co.