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GSC International PHTP-02 Blue Litmus Paper, Pack of 100

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  • $ 11.91

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.


Our products are not toys. Use in a laboratory or educational setting only. Not for children 13 and under.