Acid dye
any of a cl-ss of dyes containing one or more acidic groups, as the sulfo group: used in acid solution chiefly for dyeing wool and silk.
historical examples
if there is a precipitate there is a basic dye, if not, an acid dye.
the manufacture of paper robert walter sindall
the goods may advantageously be bottomed with an acid dye or a dye-wood extract, and then finished with basic dyes.
encyclopaedia britannica, 11th edition, volume 16, slice 3 various
noun
a dye in which the chromoph-r- is part of a negative ion usually applied from an acidic solution
acid dye n.
any of a cl-ss of dyes that contain acidic groups, usually in the form of sodium or pot-ssium salts, and are used in staining cytoplasm and various acidophilic structures of cells or tissues. also called acid stain.
Read Also:
- Acid etching
noun a technique for engraving blown or cast gl-ss or a metal by the use of an acidic substance; esp. the use of hydrofluoric acid to etch a pattern onto a gl-ss or metal surface examples acid etching craft kits are now available, making the process simple and fun. word origin by 1873 historical examples […]
- Acid-fast
resistant to decolorizing by acidified alcohol after staining. historical examples the acid-fast bacteria are particularly rich in fatty substances, especially the higher wax-like fats. the fundamentals of bacteriology charles bradfield morrey other bacteria than the acid-fast group are stained blue by gabbet’s method. a manual of clinical diagnosis james campbell todd this method is supposed […]
- Acid-forming
yielding acid in chemical reaction; acidic. (of food) containing a large amount of acid ash after complete oxidation. historical examples the desirable type of acid-forming bacteria do not form spores; hence, are easily killed by heating the milk. outlines of dairy bacteriology h. l. russell the fermentation which produces acid and the diffusion of acid-forming […]
- Acid fuchsin
acid fuchsin acid fuchsin n. an acid dye used as an indicator and as a stain for cytoplasm and collagen.
- Acid halide
noun another name for acyl halide