| 单词 | primuline base |
| 释义 | > as lemmasprimuline base primuline base n. a yellow thiazole derivative, C21H15N3S2, which is obtained when p-toluidine is heated with sulphur and is an intermediate in dye manufacture; (also) any of the related compounds formed by this process. ΘΚΠ the world > matter > chemistry > organic chemistry > organic dyes > [noun] > colouring yellow paranitraniline1872 auramine1884 primuline1887 primuline base1889 tartrazine1894 flemingin1898 flavanthrone1902 1889 Jrnl. Chem. Soc. 55 228 The product is not homogeneous, but consists of about 50 per cent. of a base, C14H12N2S,..40 per cent. of primuline-base, and 10 per cent. of unaltered paratoluidine. 1913 Thorpe's Dict. Appl. Chem. (ed. 2) IV. 385/1 These more condensed bases (‘primuline bases’) were obtained in larger amount by increasing the proportion of sulphur to 4½–5 atoms to 1 mol. amine. 1968 E. N. Abrahart Dyes v. 135 The sulphurization products of p-toluidine, primuline base and dehydrothio-p-toluidine are used..in the manufacture of some valuable cotton dyes. < as lemmas |
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