Azo Dyes

(See dyes)

Dictionary of the English textile terms. 2014.

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  • azo dyes — azo dyes, a large group of synthetic dyes containing the grouping R N:N R, a basic structure of two atoms of nitrogen and two radicals of the benzene or naphthalene series, which can form subsequent, complex structures having a variety of dyeing… …   Useful english dictionary

  • Dyes — The following list gives a general classification of colouring matters for dyeing textile fibres: Acid Colours dye animal fibres only and have no affinity for cellulose. If union goods are dyed with acid dyes the cotton remains white and the wool …   Dictionary of the English textile terms

  • Azo violet — IUPAC name 4 (4 nitrophenyl)azobenzene 1,3 diol …   Wikipedia

  • azo — [az′ō, ā′zō] adj. [< AZOTE] pertaining to or containing the divalent radical N:N [azo dyes] …   English World dictionary

  • Azo compound — General chemical formula of azo compounds Azo compounds are compounds bearing the functional group R N=N R , in which R and R can be either aryl or alkyl. IUPAC defines azo compounds as: Derivatives of diazene (diimide), HN=NH, wherein both… …   Wikipedia

  • azo dye — Chem. any of a large class of dyes containing one or more azo groups. [1880 85] * * * Any of a large class of synthetic organic compounds, dyes containing two nitrogen atoms joined by a double bond (see bonding, covalent bond) in the form ―N=N―… …   Universalium

  • azo dye — n any of numerous dyes containing azo groups * * * any of a large group of synthetic dyes whose chromophore group is the structure N N …   Medical dictionary

  • Azo — may refer to a number of topics:* For the chemistry functional group and class of compounds, see Azo compound. * A urinary tract analgesic also known as phenazopyridine. * For the medieval Italian jurist, see Azo of Bologna. * For the Georgian… …   Wikipedia

  • azo rubine — ˌazōˈrüˌbēn, ˌāz , bə̇n noun Usage: usually capitalized A&R Etymology: az + Latin rubeus red + English ine more at ruby : a mordant acid azo dye that dyes wool bluish red called also carmoisin; see dye …   Useful english dictionary

  • Azo- — Az o [See {Azote}.] (Chem.) A combining form of azote; (a) Applied loosely to compounds having nitrogen variously combined, as in cyanides, nitrates, etc. (b) Now especially applied to compounds containing a two atom nitrogen group uniting two… …   The Collaborative International Dictionary of English

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