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Litmus

Litmus is a water-soluble mixture of different dyes extracted from lichens. It is often absorbed into filter paper to produce one of the oldest forms of pH indicator, used to test materials for acidity. In an acidic medium, blue litmus paper turns red, while in a basic or alkaline medium, red litmus paper turns blue. In short, it is a dye and indicator…

History, Natural sources & Usage

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Overview

History

Natural sources

Usage

Chemistry

Mechanism

Advanced semantic analysis

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Map overview Semantic statistics

Litmus

Nodes53
Edges52
Triples44
Avg. degree1.96
Density0.037736
Components1

How this topic connects Entity context

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Litmus

Top relations

related to Natural sources · 17
Litmus → Algeria, Angola, California, Currently, Dendrographa, Lecanora, Madagascar, Mozambique, Norway, Ochrolechia, Parmelia, Parmotrema, Roccella, South American, Sweden, The, Variolaria
related to Chemistry · 8
Litmus → Acid-base, All, Azolitmin, CAS, In, Some, The, UC Santa Barbara
related to history · 8
Litmus → Arnaldus, Catalan, Circa, Medieval, Norwegian, Old Norse, The, Villa Nova
related to Usage · 5
Litmus → For, Neutral, The, Under, Wet
related to Mechanism · 3
Litmus → Red, The, When
is a · 1
Litmus → water-soluble mixture of different dyes extracted from lichens

Important terminology Word statistics

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Important terminology

paper lichens blue red alkaline solution turns ph orcein different indicator used acidic basic dyes color mixture test acidity water-soluble

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Litmusis awater-soluble mixture of different dyes extracted from lichens0.90text
chalkinstance ofafter mixing with colorless compounds0.80text
gypsuminstance ofafter mixing with colorless compounds0.80text
Litmusrelated to ChemistryThe0.60section
Litmusrelated to ChemistryCAS0.60section
Litmusrelated to ChemistryAll0.60section
Litmusrelated to ChemistryIn0.60section
Litmusrelated to ChemistryAcid-base0.60section
Litmusrelated to ChemistrySome0.60section
Litmusrelated to ChemistryAzolitmin0.60section
Litmusrelated to ChemistryUC Santa Barbara0.60section
Litmusrelated to historyThe0.60section

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    Min side: 3
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