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单词 litmus paper
释义

litmus paper


litmus paper

n. An unsized white paper impregnated with litmus and used as a pH or acid-base indicator.

lit′mus pa`per


n. a strip of paper impregnated with litmus, used as a chemical indicator. [1795–1805]

litmus paper

Paper impregnated with litmus, a lichen-derived powder that changes color according to the acidity or basicity of a substance it comes into contact with. Litmus paper is thus used to test for acidity or basicity.
Thesaurus
Noun1.litmus paper - unsized paper treated with litmus for use as an acid-base indicatorlitmus paper - unsized paper treated with litmus for use as an acid-base indicatorlitmus, litmus test - a coloring material (obtained from lichens) that turns red in acid solutions and blue in alkaline solutions; used as a very rough acid-base indicatorpaper - a material made of cellulose pulp derived mainly from wood or rags or certain grasses
Translations
cartina al tornasole

litmus paper


litmus paper

[′lit·məs ‚pā·pər] (materials) White, unsized paper saturated by litmus in water; used as a pH indicator.

litmus paper


litmus

 [lit´mus] a blue pigment prepared from Rocella tinctoria and other lichens.litmus paper absorbent paper impregnated with a solution of litmus, dried and cut into strips. It is used to indicate the acidity or alkalinity of solutions. If dipped into alkaline solution it remains blue; acid solution turns it red. It is used to test urine and other body fluids; it has a pH range of 4.5 to 8.3.

litmus paper

Chemically prepared blue paper that contains a hydrogen-ion sensitive dye, is turned red by acids, and remains blue in alkali solutions; pH range is 4.5 to 8.5. See: indicatorSee also: paper
LegalSeePaperFinancialSeepaper

litmus paper


Related to litmus paper: phenolphthalein
  • noun

Words related to litmus paper

noun unsized paper treated with litmus for use as an acid-base indicator

Related Words

  • litmus
  • litmus test
  • paper
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更新时间:2025/3/20 9:21:55