† indinn.

Forms: 1800s indin, 1800s indine.

Origin: Formed within English, by derivation; modelled on a French lexical item. Etymons: indigo n., -in suffix¹.

Etymology: < ind- (in indigo n.) + -in suffix¹, after French indine (A. Laurent 1841, in Ann. de chimie et de physique 3 471). N.E.D. (1900) gives the pronunciation as (i·ndin) /ˈɪndɪn/.

Chemistry. Obsolete.

A rose-coloured crystalline substance obtained by the alkaline hydrolysis of a sulphonated derivative of indigo.Said to have the formula C₁₆H₁₀N₂O₂; perhaps a dimeric derivative of isatin.Also as the second element of names of substituted compounds, as hydrindin, nitrindin, etc. Cf. flavindin n.

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

1841 Chemist 2 273/1 Sulphesathyde treated by potassa, gives rise to... 2nd. Indine, which crystallises in microscopic crystals of a most beautiful rose-carmine colour... 4th. Hydrindine crystallized in small colorless prisms.

1845 Penny Cycl. Suppl. I. 345/2 Indin is prepared by the action of potash on sulphesathyde..It is isomeric with white indigo.

1859 H. Watts tr. L. Gmelin Hand-bk. Chem. XIII. 90 When hydrindin is carefully heated above 300°, it turns violet-brown and gives off 4 atoms of water.

1862 W. A. Miller Elements Chem. (ed. 2) III. 624 Nitrindin C₃₂H₈(NO₄)₂N₂O₄, chlorindin (C₃₂H₈Cl₂N₂O₄), and dichlorindin (C₃₂H₆Cl₄N₂O₄) are substitution compounds obtainable from indin.

1889 H. E. Roscoe & C. Schorlemmer Treat. Chem. III. v. 97 When indin is treated with concentrated alcoholic potash, it yields the potassium salt of indic acid,..decomposed by water with formation of the original indin.

Compounds

C1. indinsulphate, indinsulphuric acid.

ΚΠ

1864 H. Watts Dict. Chem. III. 267 A hot solution of indinsulphuric acid mixed with excess of a potassium-salt..deposits the indinsulphate on cooling in interlaced needles of a dark-red colour.

C2.

indin-potassium n. the potassium salt of ‘indinic acid’.

ΚΠ

1859 H. Watts tr. L. Gmelin Hand-bk. Chem. XIII. 86 It immediately forms a black solution, which after a few hours solidifies into a magma of black needles of indin-potassium.

1873 I. Remsen tr. R. Fittig Wöhler's Outl. Org. Chem. ii. 390 Indin..dissolves, when warmed with alcoholic potassa, and, on cooling, indin-potassium, C¹⁶H⁹N²O²K, is deposited in small black crystals.

This entry has been updated (OED Third Edition, September 2009; most recently modified version published online December 2020).

单词	indin
释义	† indinn. Forms: 1800s indin, 1800s indine. Origin: Formed within English, by derivation; modelled on a French lexical item. Etymons: indigo n., -in suffix¹. Etymology: < ind- (in indigo n.) + -in suffix¹, after French indine (A. Laurent 1841, in Ann. de chimie et de physique 3 471). N.E.D. (1900) gives the pronunciation as (i·ndin) /ˈɪndɪn/. Chemistry. Obsolete. A rose-coloured crystalline substance obtained by the alkaline hydrolysis of a sulphonated derivative of indigo.Said to have the formula C₁₆H₁₀N₂O₂; perhaps a dimeric derivative of isatin.Also as the second element of names of substituted compounds, as hydrindin, nitrindin, etc. Cf. flavindin n. 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 1841 Chemist 2 273/1 Sulphesathyde treated by potassa, gives rise to... 2nd. Indine, which crystallises in microscopic crystals of a most beautiful rose-carmine colour... 4th. Hydrindine crystallized in small colorless prisms. 1845 Penny Cycl. Suppl. I. 345/2 Indin is prepared by the action of potash on sulphesathyde..It is isomeric with white indigo. 1859 H. Watts tr. L. Gmelin Hand-bk. Chem. XIII. 90 When hydrindin is carefully heated above 300°, it turns violet-brown and gives off 4 atoms of water. 1862 W. A. Miller Elements Chem. (ed. 2) III. 624 Nitrindin C₃₂H₈(NO₄)₂N₂O₄, chlorindin (C₃₂H₈Cl₂N₂O₄), and dichlorindin (C₃₂H₆Cl₄N₂O₄) are substitution compounds obtainable from indin. 1889 H. E. Roscoe & C. Schorlemmer Treat. Chem. III. v. 97 When indin is treated with concentrated alcoholic potash, it yields the potassium salt of indic acid,..decomposed by water with formation of the original indin. Compounds C1. indinsulphate, indinsulphuric acid. ΚΠ 1864 H. Watts Dict. Chem. III. 267 A hot solution of indinsulphuric acid mixed with excess of a potassium-salt..deposits the indinsulphate on cooling in interlaced needles of a dark-red colour. C2. indin-potassium n. the potassium salt of ‘indinic acid’. ΚΠ 1859 H. Watts tr. L. Gmelin Hand-bk. Chem. XIII. 86 It immediately forms a black solution, which after a few hours solidifies into a magma of black needles of indin-potassium. 1873 I. Remsen tr. R. Fittig Wöhler's Outl. Org. Chem. ii. 390 Indin..dissolves, when warmed with alcoholic potassa, and, on cooling, indin-potassium, C¹⁶H⁹N²O²K, is deposited in small black crystals. This entry has been updated (OED Third Edition, September 2009; most recently modified version published online December 2020). < n.1841
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