acid-base indicator
31phenolphthalein — /fee nawl thal een, ee in, fthal , nol /, n. Chem., Pharm. a white, crystalline compound, C20H14O4, used as an indicator in acid base titration and as a laxative. [1870 75; PHENOL + PHTHALEIN] * * * ▪ chemical compound an organic compound… …
32litmus test — noun 1. 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 • Syn: ↑litmus • Hypernyms: ↑acid base indicator • Substance Holonyms: ↑litmus paper 2.… …
33phenolsulfonephthalein — noun or phenolsulfonphthalein | ̷ ̷ˌ ̷ ̷| ̷ ̷ˌ ̷ ̷| ̷ ̷( ̷ ̷) ̷ ̷ Etymology: International Scientific Vocabulary phenol + sulfonephthalein or sulfonphthalein : a red crystalline compound C19H14O5S formed by condensation of the anhydride of ortho… …
34Garden strawberry — Strawberry redirects here. For other species of strawberry, see Fragaria. For other uses, see Strawberry (disambiguation). Garden strawberry Garden strawberries grown hydroponically Scient …
35bromophenol blue — noun a dye used as an acid base indicator (Freq. 1) • Syn: ↑bromphenol blue, ↑tetrabromo phenolsulfonephthalein • Hypernyms: ↑dye, ↑dyestuff, ↑acid base indicator …
36bromothymol blue — noun a dye used as an acid base indicator • Syn: ↑bromthymol blue • Hypernyms: ↑dye, ↑dyestuff, ↑acid base indicator …
37bromphenol blue — noun a dye used as an acid base indicator • Syn: ↑bromophenol blue, ↑tetrabromo phenolsulfonephthalein • Hypernyms: ↑dye, ↑dyestuff, ↑acid base indicator * * * noun see …
38bromthymol blue — noun a dye used as an acid base indicator • Syn: ↑bromothymol blue • Hypernyms: ↑dye, ↑dyestuff, ↑acid base indicator * * * noun see bromothymol blue …
39tetrabromo-phenolsulfonephthalein — noun a dye used as an acid base indicator • Syn: ↑bromophenol blue, ↑bromphenol blue • Hypernyms: ↑dye, ↑dyestuff, ↑acid base indicator …
40chlorophenol red — noun also chlorphenol red : a dye C19H12Cl2O5S used as an acid base indicator; dichloro phenolsulfonephthalein * * * Chem. an acid base indicator, C19H12Cl2O5S, that changes color from yellow to red as the acidity of a solution decreases …
