| 单词 | rhodamine b |
| 释义 | > as lemmasrhodamine B Any of a class of synthetic xanthene dyes, chiefly pinks and reds, which are obtained by condensation of phthalic anhydride with m-aminophenols. Usually with following capital letter, numeral, etc., denoting a particular member of this class, as rhodamine B, rhodamine G. ΘΚΠ the world > matter > chemistry > organic chemistry > organic dyes > [noun] > colouring red alizarin1827 santalin1833 orcein1838 purpurin1839 indin1841 isatin1845 roseine1859 aurin1869 Turkey red oil1879 phenosafranine1883 rhodamine1888 azaleine1889 phloxine1890 pyronin1895 primuline red1900 1888 M. Ceresole in U.S. Patent 377,349 1/1 I therefore apply to this series of coloring-matters the generic name of ‘rhodamines’. 1903 C. Salter tr. G. von Georgievics Chem. Dye-stuffs 199 On eliminating alkyl groups from Rhodamine by heating along with acids, the products obtained are..Rhodamines of a yellower tinge, e.g., Rhodamine G (triethylrhodamine). 1920 C. F. Coss & E. J. Bevan Text-bk. Paper-making (ed. 5) 270 To the phthalein group..belongs the important pink dyestuff Rhodamine. 1947 C. L. Bird Theory & Pract. of Wool Dyeing iv. 53 Rhodamine B is widely used..on account of its brilliant shade, level dyeing properties, fastness to washing and sulphur stoving, and cheapness. 1968 E. N. Abrahart Dyes x. 226 The use of Rhodamine B as a food colour has been discontinued for a number of years on account of its suspected carcinogenic nature. 1991 New Scientist 10 Aug. 12/2 Workers marked the 18-kilometres slick with the red dye rhodamine WT to track its progress. 2001 P. Ball Bright Earth ix. 255 Adolf von Baeyer's synthesis of the yellow compound fluorescein in 1871 led to the important family of rhodamine dyes, manufactured by BASF from 1887. < as lemmas |
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