litmus paper


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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.
ThesaurusAntonymsRelated WordsSynonymsLegend:
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 indicator
litmus, 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 indicator
paper - a material made of cellulose pulp derived mainly from wood or rags or certain grasses
Translations

litmus paper

nLackmuspapier nt

litmus paper

[ˈlɪtməsˌpeɪpəʳ] n (also) (fig) → cartina al tornasole
References in classic literature ?
He dropped a piece of litmus paper into an acid, when it changed instantly to red, and on floating it in an alkali it turned as quickly to blue.
The litmus paper is still the litmus paper," he enunciated in the formal manner of the lecturer.
Observing farmers using test tubes, litmus paper, sample soil and a soil-testing kit from the Bureau of Soils and Water Management reminded me of my high-school chemistry class and the fact that there's a lot more involved in food production than picking up that bag of organic lettuce in the weekend market.
A spokesman added: "Two firefighters wearing breathing apparatus and chemical protection suits checked over the suspected leaking cylinder using litmus paper.
They're more accurate than litmus paper because they have several color spots on each strip.
Mix your soil sample with distilled water and dip the litmus paper in for a few seconds.
Mix your soil sample with some distilled water and dip the litmus paper in for a few seconds.
Its support for the Kurdish referendum is a litmus paper by which to understand Israel's approach to the region.
high schools Hydrochloric Acid 500 ml, Sulphuric Acid 500 ml, Ammonium Dichromate 250 gm, Calcium Chloride 500 gm, Copper Sulphate 500 ml, Formaldyde Solution 500 ml, Glycerin 500 ml, Litmus paper Red & Blue 1 pkt, Magnesium Sulphate 500 gm
Marjan Velevski reminds in Nova Makedonija that the agreement for good neighborly relations with Bulgaria is one of the priority tasks of the new Government and is somewhat the litmus paper that will determine the capacity and direction to where Zaev's cabinet is headed.
To check the acid,farmers can utilize a blue litmus paper and rub it on the seed.
A standard litmus paper will turn blue if it's alkaline and red if it's acidic," he continued.