cuprammoniumn.

/kjuːprəˈməʊnɪəm/

Forms: Also erron. cupra-ammonium.

Etymology: < Latin cuprum copper + ammonium n.

A complex ion of copper and ammonia, Cu(NH₃)₄⁺⁺, obtained in solution by adding excess ammonium hydroxide to a solution of a cupric salt; it forms deep blue aqueous solutions which dissolve cellulose and are used industrially, esp. in the manufacture of some man-made fibres. So cuprammonium process, cuprammonium rayon, cuprammonium silk, etc. Also used elliptically for cuprammonium solution.

ΘΚΠ

the world > matter > chemistry > physical chemistry > solutions > [noun] > containing cuprammonium

cuprammonia1862

cuprammonium1862

the world > matter > chemistry > ions, ionization, or electrolysis > [noun] > ion > specific > specific complex ion

cuprammonium1862

society > occupation and work > materials > derived or manufactured material > other manufactured or derived materials > [noun] > industrial solution > specific

cuprammonium1862

1862 H. Watts tr. L. Gmelin Hand-bk. Chem. XV. 142 Cotton immersed in aqueous biphosphate of cuprammonium becomes first gelatinous, then slippery, and forms an almost transparent gummy liquid.

1888 C. F. Cross & E. J. Bevan Text-bk. Paper-making xvi. 217 The cuprammonium solution.

1907 H. E. Roscoe & C. Schorlemmer Treat. Chem. (ed. 4) II. 435 This dissolves to a deep pure blue liquid containing cuprammonium sulphate, CuSO₄, 4NH₃, H₂O, which was first described by Stisser in 1693 as an arcanum epilecticum and afterwards termed cuprum ammoniacale.

1921 T. Woodhouse tr. J. Foltzer Artificial Silk 29 Despeissis Artificial Silk (Cuprammonium Process).

1921 T. Woodhouse tr. J. Foltzer Artificial Silk 36 Cuprammonium Solution..is a solution of copper oxide in ammonia. It is a blue liquid known to chemists as Schweitzer's reagent.

1925 Good Housek. (U.K. ed.) Apr. 142/2 Cuprammonium silk.

1927 M. H. Avram Rayon Industry 192 The cupra-ammonium solution of cellulose.

1927 M. H. Avram Rayon Industry 497 Cupra-ammonium Rayon.

1939 Thorpe's Dict. Appl. Chem. (ed. 4) III. 355/1 ‘Schweizer's reagent’ or cuprammonium..has the property of dissolving cellulose (cotton wool, linen, filter paper, etc.).

1960 C. W. Wood & A. K. Holliday Inorg. Chem. xiv. 347 The deep blue solution of cuprammonium sulphate deposits crystals..of composition, Cu(NH₃)₄SO₄.H₂O.

1964 N. G. Clark Mod. Org. Chem. xvi. 333 One commercial process, giving Cuprammonium Rayon, exploits the ability of an aqueous ammoniacal copper salt solution to dissolve cellulose.

This entry has not yet been fully updated (first published 1933; most recently modified version published online December 2020).

used as combining form of Latin cuprum copper n.¹, in Chemistry and Mineralogy, as cuprammonium, cupro-sulphate; cuproˈmagnesite n. a hydrous sulphate of copper and magnesium (Dana, 1875). ˌcupro-ˈnickel n. an alloy of copper and nickel. cupro-ˈplumbite n. a native sulphide of copper and lead (Dana, 1850). cuproˈscheelite n. native tungstate of copper and calcium. cupro-ˈtungstite n. native tungstate of copper (Dana, 1875); etc.

ΘΚΠ

society > occupation and work > materials > derived or manufactured material > metal > alloy > [noun] > other nickel alloys

speiss1796

nickel bronze1880

nickel steela1884

platinoid1885

cupro-nickel1905

Nichrome1908

Monel1909

Chromel1914

Alumel1918

Inconel1933

Nimonic1941

nitinol1968

1905 Kynoch Jrnl. Jan.–Mar. 18 The bullet is sheathed with a cupro-nickel envelope.

1922 Encycl. Brit. XXX. 135/2 This jacket is made from cupro-nickel which..contains from 80% to 85% copper and from 15% to 20% nickel.

1948 M. Laski Tory Heaven xii. 172 A golden sovereign..changed into four cupro-nickel half-crowns.

1962 Metal Industry CI. 102/1 The term cupro-nickel is now more widely applied to any copper-nickel alloy containing less than about 50 per cent of nickel.

单词	cuprammonium
释义	cuprammoniumn. /kjuːprəˈməʊnɪəm/ Forms: Also erron. cupra-ammonium. Etymology: < Latin cuprum copper + ammonium n. A complex ion of copper and ammonia, Cu(NH₃)₄⁺⁺, obtained in solution by adding excess ammonium hydroxide to a solution of a cupric salt; it forms deep blue aqueous solutions which dissolve cellulose and are used industrially, esp. in the manufacture of some man-made fibres. So cuprammonium process, cuprammonium rayon, cuprammonium silk, etc. Also used elliptically for cuprammonium solution. ΘΚΠ the world > matter > chemistry > physical chemistry > solutions > [noun] > containing cuprammonium cuprammonia1862 cuprammonium1862 the world > matter > chemistry > ions, ionization, or electrolysis > [noun] > ion > specific > specific complex ion cuprammonium1862 society > occupation and work > materials > derived or manufactured material > other manufactured or derived materials > [noun] > industrial solution > specific cuprammonium1862 1862 H. Watts tr. L. Gmelin Hand-bk. Chem. XV. 142 Cotton immersed in aqueous biphosphate of cuprammonium becomes first gelatinous, then slippery, and forms an almost transparent gummy liquid. 1888 C. F. Cross & E. J. Bevan Text-bk. Paper-making xvi. 217 The cuprammonium solution. 1907 H. E. Roscoe & C. Schorlemmer Treat. Chem. (ed. 4) II. 435 This dissolves to a deep pure blue liquid containing cuprammonium sulphate, CuSO₄, 4NH₃, H₂O, which was first described by Stisser in 1693 as an arcanum epilecticum and afterwards termed cuprum ammoniacale. 1921 T. Woodhouse tr. J. Foltzer Artificial Silk 29 Despeissis Artificial Silk (Cuprammonium Process). 1921 T. Woodhouse tr. J. Foltzer Artificial Silk 36 Cuprammonium Solution..is a solution of copper oxide in ammonia. It is a blue liquid known to chemists as Schweitzer's reagent. 1925 Good Housek. (U.K. ed.) Apr. 142/2 Cuprammonium silk. 1927 M. H. Avram Rayon Industry 192 The cupra-ammonium solution of cellulose. 1927 M. H. Avram Rayon Industry 497 Cupra-ammonium Rayon. 1939 Thorpe's Dict. Appl. Chem. (ed. 4) III. 355/1 ‘Schweizer's reagent’ or cuprammonium..has the property of dissolving cellulose (cotton wool, linen, filter paper, etc.). 1960 C. W. Wood & A. K. Holliday Inorg. Chem. xiv. 347 The deep blue solution of cuprammonium sulphate deposits crystals..of composition, Cu(NH₃)₄SO₄.H₂O. 1964 N. G. Clark Mod. Org. Chem. xvi. 333 One commercial process, giving Cuprammonium Rayon, exploits the ability of an aqueous ammoniacal copper salt solution to dissolve cellulose. This entry has not yet been fully updated (first published 1933; most recently modified version published online December 2020). > as lemmas cuprammonium used as combining form of Latin cuprum copper n.¹, in Chemistry and Mineralogy, as cuprammonium, cupro-sulphate; cuproˈmagnesite n. a hydrous sulphate of copper and magnesium (Dana, 1875). ˌcupro-ˈnickel n. an alloy of copper and nickel. cupro-ˈplumbite n. a native sulphide of copper and lead (Dana, 1850). cuproˈscheelite n. native tungstate of copper and calcium. cupro-ˈtungstite n. native tungstate of copper (Dana, 1875); etc. ΘΚΠ society > occupation and work > materials > derived or manufactured material > metal > alloy > [noun] > other nickel alloys speiss1796 nickel bronze1880 nickel steela1884 platinoid1885 cupro-nickel1905 Nichrome1908 Monel1909 Chromel1914 Alumel1918 Inconel1933 Nimonic1941 nitinol1968 1905 Kynoch Jrnl. Jan.–Mar. 18 The bullet is sheathed with a cupro-nickel envelope. 1922 Encycl. Brit. XXX. 135/2 This jacket is made from cupro-nickel which..contains from 80% to 85% copper and from 15% to 20% nickel. 1948 M. Laski Tory Heaven xii. 172 A golden sovereign..changed into four cupro-nickel half-crowns. 1962 Metal Industry CI. 102/1 The term cupro-nickel is now more widely applied to any copper-nickel alloy containing less than about 50 per cent of nickel. extracted from cupro-comb. form < n.1862 as lemmas
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cuprammoniumn.

> as lemmas