- litmus solution
- лакмусовый раствор
English-Russian dictionary on textile and sewing industry. Липенок В., Григорьева А., Жданов Я. . 2015.
litmus solution
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litmus-milk culture medium — milk culture medium containing sufficient litmus solution to give it a deep lavender color, used to determine lactose fermentation and production of gas in the identification of Clostridium perfringens … Medical dictionary
Litmus test (chemistry) — Litmus is a water soluble mixture of different dyes extracted from lichens, especially Roccella tinctoria . The mixture has CAS number 1393 92 6. It is often absorbed onto filter paper. The resulting piece of paper or solution with water becomes… … Wikipedia
litmus paper — n paper colored with litmus and used as an acid base indicator * * * bibulous paper impregnated with a solution of litmus, dried, and cut into strips. If slightly alkaline, the paper is blue and is used as a test for acids, which turn it red; if… … Medical dictionary
litmus test — n. 1. a test using litmus paper to determine whether a solution is an acid or a base 2. any test in which a single factor determines the finding [a litmus test for political candidates] … English World dictionary
litmus — /lit meuhs/, n. a blue coloring matter obtained from certain lichens, esp. Roccella tinctoria. In alkaline solution litmus turns blue, in acid solution, red: widely used as a chemical indicator. [1495 1505; earlier lytmos < ON litmosi dye moss,… … Universalium
litmus test — 1. Chem. the use of litmus paper or solution to test the acidity or alkalinity of a solution. 2. a crucial and revealing test in which there is one decisive factor. [1955 60; so called from chemical tests in which litmus or litmus paper is an… … Universalium
litmus — /ˈlɪtməs / (say litmuhs) noun a colouring substance obtained from certain lichens, especially Roccella tinctoria. In alkaline solution litmus turns blue, in acid solution red; hence it is widely used as an indicator, especially in the form of… …
litmus test — lit′mus test n. 1) chem. a test using litmus paper or solution to indicate the acidity or alkalinity of a solution 2) a crucial test using a single issue or factor as the basis for judgment • Etymology: 1955–60 … From formal English to slang
litmus test — use of litmus paper to test the alkalinity or acidity of a solution (Chemistry); test in which one particular event or quality serves as the decisive factor (Figurative) … English contemporary dictionary
litmus — lit•mus [[t]ˈlɪt məs[/t]] n. chem. a blue coloring matter obtained from certain lichens, esp. Roccella tinctoria, that turns blue in alkaline solution and red in acid solution: widely used as a chemical indicator • Etymology: 1495–1505; earlier… … From formal English to slang
Congo red — IUPAC name sodium sodium 3,3 ([1,1 biphenyl] 4,4 diyl)bis(4 aminonaphthalene 1 sulfonate) … Wikipedia
