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| Litmus paper, blue |
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| Quick and easy determination of acidic and alkaline reaction |
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Litmus paper blue:
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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| Product data and ordering information |
| Type |
pH indicator paper |
| Presentation |
91106: Reel of 5 m length and 7 mm width
91126: Booklet of 100 strips, 10 x 70 mm
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| Color reaction |
blue -> red
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| pH range |
8.0 - 5.0
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| Reference |
91106
91126 |
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