| 释义 |
safranine Chem.|ˈsæfrəniːn|
Also 9 safranin |-ɪn|.
[f. F. safran saffron n. + -in1.]
†a. The yellow colouring matter of saffron. Now Obs.
b. A coal-tar colour which dyes yellowish-red. Also, any of a large class of azine dyestuffs (chiefly red) related to this, which are obtained typically by coupling of diazotized aromatic monoamines with aromatic diamines. Sometimes with following letter designating particular compounds.
1868Watts Dict. Chem. V. 145 Safranin or Saffron-yellow..a colouring matter obtained, though not in the pure state, from saffron. 1872Jrnl. Chem. Soc. XXIV. 271 (heading) Preparation of saffranine [sic]. Ibid. 828 Safranine when treated with aniline yields a purple dye. 1875Watts Dict. Chem. 2nd Suppl. 1063 Safranine..a red dye prepared commercially..by treating aniline with nitrous acid [etc.]. 1885G. L. Goodale Physiol. Bot. 380 An alcoholic solution of safranin. 1897Allbutt's Syst. Med. III. 215 Solution of safranine. 1905Cain & Thorpe Synthetic Dyestuffs xviii. 134 The first technical production of Safranine under this name was carried out under the French patents of Felix Duprey in 1865, but without success. 1911I. W. Fay Chem. Coal-Tar Dyes xii. 298 Mauve, the very first dye prepared by Perkin in 1856, has been shown..to be a true safranine. 1952K. Venkataraman Chem. Synthetic Dyes II. xxv. 766 The simplest Safranine (Safranine B; Phenosafranine; CI 840) is obtained by oxidizing a mixture of p-phenylenediamine and aniline to the indamine by means of dichromate and hydrochloric acid, and boiling the solution to convert the blue indamine into the red Safranine. 1971R. L. M. Allen Colour Chem. viii. 124 Safranine T is used for dyeing tannin-mordanted cotton, bast fibres, wool, silk, polyacrylonitrile fibres, leather and paper. |