Blue Litmus Indicators or Litmus Paper 100 Leaves/Box is most used in chemical laboratory in Bangladesh. Basically used in School, College, University Laboratory.
Blue Litmus is 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. Blue litmus paper turns Red under acidic conditions. Sold in boxes of 100 strips of paper. Made in India.
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