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单词 red spirit
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red spirit
red spirit n. (a) an alcoholic solution containing a red dye, used to indicate temperature in a thermometer; (b) (also red spirits) a solution containing tin salts, used as a mordant for red dyes (obsolete).
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1807 A. Aikin & C. R. Aikin Dict. Chem. & Mineral. II. 287/2 It [sc. red sanders wood] is occasionally used for colouring spirits, as, for example, the red spirit used for thermometers.
1844 E. A. Parnell Appl. Chem. I. 287 Such solutions, which are known among dyers by the name of red spirits or simply spirits, may be obtained by dissolving metallic tin, in a granulated or ‘feathered’ state, in one of the following liquids.
1855 Sci. Amer. 30 June 336/1 The cotton is..afterwards mordanted in the red spirit tub for about two hours.
1893 H. T. Peck Internat. Cycl. V. 198 Alumina acetate is called by the dyer red liquor, iron acetate black liquor, and chloride of tin red spirits, on account of the colors they produce with certain natural dyes.
1966 Lancet 20 Aug. 434/1 A thermometer was built into the radiator cap with the red-spirit column facing backwards.
2006 U.S. States News (Nexis) 31 Aug. The high school labs eliminated mercury thermometers, replacing them with digital and/or red spirit thermometers.
extracted from redadj.n.adv.
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