Changes colour from blue to red when conditions change from alkaline to acidic.
Recommended application: General test for acidic or alkaline reaction: It serves in neutralisation reactions to check whether the change from acid to alkaline or vice versa has taken place. Litmus paper is the bestknown indicator paper.
Chemistry: Litmus is not a single, chemically defined substance but a natural product containing a mixture of substances. It is extracted from lichen and probably represents the oldest known indicator dye.
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Brand
Macherey-Nagel
Sterile
no
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