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 ...
From Longman Dictionary of Contemporary EnglishRelated topics: Chemistryˈlitmus ˌpaper noun [uncountable] paper containing litmus, used to test whether a chemical is an acid or an alkaliExamples from the Corpuslitmus paper• The use of litmus paper furnishes another example of such a transform...
•Heinstitutedastringentlitmustest on doctrinalmatters.•In adrawerthelitmuspapermusedupon which way to turn.•Comparisonis the onlytruelitmustest of objectivity. 我们重视您的隐私 我們及我們的762合作夥伴會在您的裝置上儲存和存取個人資料,例如瀏覽資料或唯一識別碼。選擇「接受」將啟用追蹤技術,以支持「...
litmus•The case of travellers is something of alitmustest.•Forbes, meanwhile, has made winning Arizona hislitmustest for capturing the nomination.•The use oflitmuspaper furnishes another example of such a transformation.•What clearer laboratory orlitmustest could there be to show that our...
litmus paperabsorbent 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...
百度试题 结果1 题目A14 An alkali will change the colour of a litmus paper from C___. A blue to green B blue to red C red to blue D red to green 相关知识点: 试题来源: 解析 C 反馈 收藏
Also found in: Dictionary, Thesaurus, Medical. litmus litmus, organic dye usually used in the laboratory as an indicator of acidity or alkalinity (see acids and bases). Naturally pink in color, it turns blue in alkali solutions and red in acids. Commonly, paper is treated with the ...
PURPOSE:To obtain the title test paper which is capable of determining the bile acid in the body fluid accurately, simply in a shortened time, by allowing the carrier made of a macromolecular material to support a specific reagent composition and an additive such as ethylenediaminetetraacetic acid...
Blue litmus paper responses to acidic solutions as like red litmus paper changes its color to blue in the basic / alkali medium. When a drop of an acidic solution is placed in the blue color litmus paper stripe, it turns to red.
1 x PH Test Paper Note: Can not indicate the Acid or alkali solution when its density was lower than 0.01%. Keep dry for the rest paper. Please allow 0-1cm errors due to manual measurement. Item color displayed in photos may be showing slightly different on your computer monitor since ...