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Analytical chemistry
Industry: Chemistry
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Analytical chemistry
Schiff test
Chemistry; Analytical chemistry
A test for aldehydes by using an aqueous solution of rosaniline and sulfurous acid.
Schulze’s reagent
Chemistry; Analytical chemistry
An oxidizing mixture consisting of a saturated aqueous solution of KCIO 3 and varying amounts of concentrated HNO 3 ; commonly used in palynologic macerations.
Seliwanoff’s test
Chemistry; Analytical chemistry
A color test helpful in the identification of ketoses, which develop a red color with resorcinol in hydrochloric acid.
Sonnenschein’s reagent
Chemistry; Analytical chemistry
A solution of phosphomolybdic acid that forms a yellow precipitate with alkaloid sulfates.
So¨rensen titration
Chemistry; Analytical chemistry
Titration with one of the So¨ rensen hydrogen-ionconcentration indicators.
Tag closed-cup tester
Chemistry; Analytical chemistry
A laboratory device used to determine the flash point of mobile petroleum liquids flashing below 175_F (79.4_C). Also known as Tagliabue closed tester.
Tauber test
Chemistry; Analytical chemistry
A color test for identification of pentose sugars; the sugars produce a cherry-red color when heated with a solution of benzidine in glacial acetic acid.
