litmus paper
paper covered in a special substance and used to detect acids and bases | ||||
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Litmus paper definition was found in categories: Language, Idioms & Slang(2) Society & Culture(1) Science & Technology(1) Encyclopedia(1)
Litmus paper Definition from Language, Idioms & Slang Dictionaries & Glossaries
| WordNet 2.0 |
litmus paper
Noun
1. unsized paper treated with litmus for use as an acid-base indicator
(hypernym) paper
(substance-meronym) litmus, litmus test
Noun
1. unsized paper treated with litmus for use as an acid-base indicator
(hypernym) paper
(substance-meronym) litmus, litmus test
| hEnglish - advanced version |
litmus paper
litmus paper
litmus test n
1. a coloring material (obtained from lichens) that turns red in acid solutions and blue in alkaline solutions; used as a very rough acid-base indicator [syn: litmus]
2. a test that relies on a single indicator; "her litmus test for good breeding is whether you split infinitives"
litmus paper
litmus test n
1. a coloring material (obtained from lichens) that turns red in acid solutions and blue in alkaline solutions; used as a very rough acid-base indicator [syn: litmus]
2. a test that relies on a single indicator; "her litmus test for good breeding is whether you split infinitives"
Litmus paper Definition from Society & Culture Dictionaries & Glossaries
| Environmental Engineering (English ver.) |
LITMUS PAPER
An unsized white paper impregnated with Litmus and used as a Ph or acid-base indicator.
An unsized white paper impregnated with Litmus and used as a Ph or acid-base indicator.
Litmus paper Definition from Science & Technology Dictionaries & Glossaries
| General Chemistry Glossary |
litmus paper (litmus test)
Paper impregnated with litmus , usually cut in narrow strips. Dipping red litmus paper into a basic solution turns it blue; dipping blue litmus paper into an acidic solution turns it red.
Paper impregnated with litmus , usually cut in narrow strips. Dipping red litmus paper into a basic solution turns it blue; dipping blue litmus paper into an acidic solution turns it red.
Litmus paper Definition from Encyclopedia Dictionaries & Glossaries
| Wikipedia English - The Free Encyclopedia |
Litmus
Litmus may refer to:
- Litmus test (chemistry), a common pH test
- Litmus Zine, a web magazine devoted to creative science writing
- Litmus (Mozilla), a test case management tool maintained by Mozilla
- "Litmus" (Battlestar Galactica), an episode in the first season of the Battlestar Galactica television series
- Litmus (software), a WebDAV server protocol compliance test suite
- Litmus Test of Medjugorje, a test of ecclesiastical obedience on part of the seers and the apparition of Medjugorje
- Litmus test (language), an English colloquialism:
- Any kind of social indicator used to classify someone either favorably or unfavorably
- Litmus test (politics), a question asked of a potential candidate
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Litmus test (chemistry)
Litmus is a water-soluble mixture of different dyes extracted from lichens, specially Roccella tinctoria. The mixture has CAS number 1393-92-6. It is often absorbed on to filter paper. The resulting piece of paper or solution with water becomes a pH indicator (one of the oldest), used to test materials for acidity. Blue litmus paper turns red under acidic conditions and red litmus paper turns blue under basic (i.e. alkaline) conditions, the color change occurring over the pH range 4.5-8.3 (at 25°C). Neutral litmus paper is purple in color. The mixture contains 10 to 15 different dyes (Erythrolein (or Erythrolitmin), Azolitmin, Spaniolitmin, Leucoorcein and Leucazolitmin). Pure Azolitmin does show nearly the same effect as litmus.
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