heptanen.

Brit.

/ˈhɛpteɪn/, U.S.

/ˈhɛpˌteɪn/

Etymology: < hept- (in hepta- comb. form) + -ane suffix², formative of the names of paraffins.

Chemistry.

The paraffin of the heptacarbon series, having the formula C₇H₁₆: ‘of these hydrocarbons nine are possible and four are known’ ( Fownes's Chem. 1877).

ΘΚΠ

the world > matter > chemistry > organic chemistry > hydrocarbons > [noun] > alkanes > straight-chained by number of carbon atoms > seven

heptane1877

1877 H. Watts Fownes's Man. Elem. Chem. (ed. 12) II. 49 Normal heptane, CH₃—(CH₂)₅—CH₃, is contained in Pennsylvanian petroleum, and in the light oils of Boghead and Cannel coal.

1880 H. E. Armstrong & C. E. Groves Miller's Elements Chem. (ed. 5) III. 196 Of the heptylene from normal heptane..somewhat less than one half combines with cold hydrochloric acid, producing a heptylic chloride.

Derivatives

heptaˈnoic acid n. oenanthic acid, CH₃·(CH₂)₅·COOH.

ΘΚΠ

the world > matter > chemistry > organic chemistry > organic acids > [noun] > carboxylic acids > miscellaneous others

urobenzoic acid1836

adipic acid1838

azelaic acid1838

isethionic acid1838

rutinic acid1845

rutic acid1848

glyoxylic acid1856

malonic acid1859

piperic acid1863

butalanine1865

methacrylic acid1865

barbituric acid1866

pichuric acid1866

carboxylic acid1868

gluconic acid1871

xylic acid1872

xylidic acid1872

aconic acid1873

formobenzoic1873

nicotinic acid1873

hydracrylic acid1877

undecylenic acid1879

isonicotinic acid1883

isatoic acid1885

linolenic acid1887

hendecenoic acid1889

heptenoic acid1889

mannonic acid1890

phenolcarboxylic acid1893

naphthenic acid1894

aldonic acid1904

naphthaleneacetic acid1917

heptanoic acid1928

hexuronic acid1928

pantothenic acid1933

neuraminic acid1942

pantoic acid1945

penicillanic acid1953

mevalonic acid1957

retinoic acid1960

isobutyric acid-

1928 Chem. Abstr. 22 Index 5909 Heptanoic acid. See Enanthic acid.

1964 N. G. Clark Mod. Org. Chem. xvi. 317 By heating the heptonic acid with hydriodic acid and red phosphorus, (n-)heptanoic acid is produced.

heptene n.

/ˈhɛptiːn/ [see -ene comb. form] the olefine of the heptacarbon series (C₇H₁₄), also called ˈheptylene, homologous and polymeric with ethene (C₂H₄); it is known to exist in three isomeric forms.

ΘΚΠ

the world > matter > chemistry > organic chemistry > hydrocarbons > [noun] > alkenes > straight-chained, by number of carbon atoms > seven

oenanthylene1857

heptene1865

1865–72 H. Watts Dict. Chem. (1882) III. 148 Heptylene is a colourless mobile liquid, having a peculiar alliaceous odour.

1877 H. Watts Fownes's Man. Elem. Chem. (ed. 12) II. 59 Heptene, or Heptylene..also called œnanthylene..occurs in the light oils from Boghead and Cannel tar.

1880 H. E. Armstrong & C. E. Groves Miller's Elem. Chem. (ed. 6) 196 When the isomeric paraffins, normal heptene, ethyl-isoamyl..are treated with chlorine, mono~chlorinated paraffins are produced.

hepteˈnoic acid n. any of several monocarboxylic acids, C₆H₁₁COOH, having one double bond.

ΘΚΠ

the world > matter > chemistry > organic chemistry > organic acids > [noun] > carboxylic acids > miscellaneous others

urobenzoic acid1836

adipic acid1838

azelaic acid1838

isethionic acid1838

rutinic acid1845

rutic acid1848

glyoxylic acid1856

malonic acid1859

piperic acid1863

butalanine1865

methacrylic acid1865

barbituric acid1866

pichuric acid1866

carboxylic acid1868

gluconic acid1871

xylic acid1872

xylidic acid1872

aconic acid1873

formobenzoic1873

nicotinic acid1873

hydracrylic acid1877

undecylenic acid1879

isonicotinic acid1883

isatoic acid1885

linolenic acid1887

hendecenoic acid1889

heptenoic acid1889

mannonic acid1890

phenolcarboxylic acid1893

naphthenic acid1894

aldonic acid1904

naphthaleneacetic acid1917

heptanoic acid1928

hexuronic acid1928

pantothenic acid1933

neuraminic acid1942

pantoic acid1945

penicillanic acid1953

mevalonic acid1957

retinoic acid1960

isobutyric acid-

1889 H. F. Morley & M. M. P. Muir Watts' Dict. Chem. (rev. ed.) II. 676/1 Heptenoic acid C₇H₁₂O₂.

1948 A. W. Ralston Fatty Acids ii. 86 None of the heptenoic acids has been identified in the naturally occurring fats and oils.

heptenyl n. the radical, C₇H₁₃, of heptene.

ΚΠ

1889 H. F. Morley & M. M. P. Muir Watts' Dict. Chem. (rev. ed.) II. 676/1 Heptenyl bromide C₇H₁₃Br... Heptenyl chloride C₇H₁₃Cl.

heptine n.

/ˈhɛptaɪn/ [see -ine suffix¹] the hydrocarbon of the same series (C₇H₁₂), homologous with acetylene or ethine

ΘΚΠ

the world > matter > chemistry > organic chemistry > hydrocarbons > [noun] > alkynes > straight-chained, by number of carbon atoms > seven

heptine1877

1877 H. Watts Fownes's Man. Elem. Chem. (ed. 12) II. 64 Heptine, or œnanthidene, is formed by the action of potash on œnanthidene dibromide.

hepˈtoic adj. applied to fatty acids, aldehydes, etc. belonging to the heptacarbon series, as heptoic acid, C₇H₁₄O₂

ΚΠ

1865–72 H. Watts Dict. Chem. (1882) III. 295 Of these acids, one only is accurately known. viz. NormalHeptoic or Œnanthylic acid.

heptonene n. a liquid hydrocarbon of the valylene series.

ΚΠ

1889 H. F. Morley & M. M. P. Muir Watts' Dict. Chem. (rev. ed.) II. 680/1 Heptonene C₇H₁₀.

heptyl n.

/ˈhɛptɪl/ [see -yl suffix] the hydrocarbon radical (C₇H₁₅), of heptylic or œnanthylic alcohol and its derivatives.

ΚΠ

1865–72 H. Watts Dict. Chem. (1882) III. 144 Chloride of heptyl (C₇H₁₅Cl) is a colourless liquid having an agreeable fruity odour, and burning with a smoky green-bordered flame.

1868 H. B. Jones & H. Watts Fownes's Man. Elem. Chem. (ed. 10) 630 Another heptyl alcohol was separated..from fusel-oil.

ˈheptylaˌmine n. (see amine n.).

ΚΠ

1865–72 H. Watts Dict. Chem. (1882) III. 147 When distilled with caustic potash, it yields heptylamine (C₇H₁₇N) as a light oily liquid, having an ammoniacal aromatic odour.

hepˈtylic adj.

ΚΠ

1865–72 H. Watts Dict. Chem. (1882) III. 145 Preparation of Heptylic alcohol from Castor-oil.

This entry has not yet been fully updated (first published 1898; most recently modified version published online March 2022).

单词	heptane
释义	heptanen. Brit. /ˈhɛpteɪn/, U.S. /ˈhɛpˌteɪn/ Etymology: < hept- (in hepta- comb. form) + -ane suffix², formative of the names of paraffins. Chemistry. The paraffin of the heptacarbon series, having the formula C₇H₁₆: ‘of these hydrocarbons nine are possible and four are known’ ( Fownes's Chem. 1877). ΘΚΠ the world > matter > chemistry > organic chemistry > hydrocarbons > [noun] > alkanes > straight-chained by number of carbon atoms > seven heptane1877 1877 H. Watts Fownes's Man. Elem. Chem. (ed. 12) II. 49 Normal heptane, CH₃—(CH₂)₅—CH₃, is contained in Pennsylvanian petroleum, and in the light oils of Boghead and Cannel coal. 1880 H. E. Armstrong & C. E. Groves Miller's Elements Chem. (ed. 5) III. 196 Of the heptylene from normal heptane..somewhat less than one half combines with cold hydrochloric acid, producing a heptylic chloride. Derivatives heptaˈnoic acid n. oenanthic acid, CH₃·(CH₂)₅·COOH. ΘΚΠ the world > matter > chemistry > organic chemistry > organic acids > [noun] > carboxylic acids > miscellaneous others urobenzoic acid1836 adipic acid1838 azelaic acid1838 isethionic acid1838 rutinic acid1845 rutic acid1848 glyoxylic acid1856 malonic acid1859 piperic acid1863 butalanine1865 methacrylic acid1865 barbituric acid1866 pichuric acid1866 carboxylic acid1868 gluconic acid1871 xylic acid1872 xylidic acid1872 aconic acid1873 formobenzoic1873 nicotinic acid1873 hydracrylic acid1877 undecylenic acid1879 isonicotinic acid1883 isatoic acid1885 linolenic acid1887 hendecenoic acid1889 heptenoic acid1889 mannonic acid1890 phenolcarboxylic acid1893 naphthenic acid1894 aldonic acid1904 naphthaleneacetic acid1917 heptanoic acid1928 hexuronic acid1928 pantothenic acid1933 neuraminic acid1942 pantoic acid1945 penicillanic acid1953 mevalonic acid1957 retinoic acid1960 isobutyric acid- 1928 Chem. Abstr. 22 Index 5909 Heptanoic acid. See Enanthic acid. 1964 N. G. Clark Mod. Org. Chem. xvi. 317 By heating the heptonic acid with hydriodic acid and red phosphorus, (n-)heptanoic acid is produced. heptene n. /ˈhɛptiːn/ [see -ene comb. form] the olefine of the heptacarbon series (C₇H₁₄), also called ˈheptylene, homologous and polymeric with ethene (C₂H₄); it is known to exist in three isomeric forms. ΘΚΠ the world > matter > chemistry > organic chemistry > hydrocarbons > [noun] > alkenes > straight-chained, by number of carbon atoms > seven oenanthylene1857 heptene1865 1865–72 H. Watts Dict. Chem. (1882) III. 148 Heptylene is a colourless mobile liquid, having a peculiar alliaceous odour. 1877 H. Watts Fownes's Man. Elem. Chem. (ed. 12) II. 59 Heptene, or Heptylene..also called œnanthylene..occurs in the light oils from Boghead and Cannel tar. 1880 H. E. Armstrong & C. E. Groves Miller's Elem. Chem. (ed. 6) 196 When the isomeric paraffins, normal heptene, ethyl-isoamyl..are treated with chlorine, mono~chlorinated paraffins are produced. hepteˈnoic acid n. any of several monocarboxylic acids, C₆H₁₁COOH, having one double bond. ΘΚΠ the world > matter > chemistry > organic chemistry > organic acids > [noun] > carboxylic acids > miscellaneous others urobenzoic acid1836 adipic acid1838 azelaic acid1838 isethionic acid1838 rutinic acid1845 rutic acid1848 glyoxylic acid1856 malonic acid1859 piperic acid1863 butalanine1865 methacrylic acid1865 barbituric acid1866 pichuric acid1866 carboxylic acid1868 gluconic acid1871 xylic acid1872 xylidic acid1872 aconic acid1873 formobenzoic1873 nicotinic acid1873 hydracrylic acid1877 undecylenic acid1879 isonicotinic acid1883 isatoic acid1885 linolenic acid1887 hendecenoic acid1889 heptenoic acid1889 mannonic acid1890 phenolcarboxylic acid1893 naphthenic acid1894 aldonic acid1904 naphthaleneacetic acid1917 heptanoic acid1928 hexuronic acid1928 pantothenic acid1933 neuraminic acid1942 pantoic acid1945 penicillanic acid1953 mevalonic acid1957 retinoic acid1960 isobutyric acid- 1889 H. F. Morley & M. M. P. Muir Watts' Dict. Chem. (rev. ed.) II. 676/1 Heptenoic acid C₇H₁₂O₂. 1948 A. W. Ralston Fatty Acids ii. 86 None of the heptenoic acids has been identified in the naturally occurring fats and oils. heptenyl n. the radical, C₇H₁₃, of heptene. ΚΠ 1889 H. F. Morley & M. M. P. Muir Watts' Dict. Chem. (rev. ed.) II. 676/1 Heptenyl bromide C₇H₁₃Br... Heptenyl chloride C₇H₁₃Cl. heptine n. /ˈhɛptaɪn/ [see -ine suffix¹] the hydrocarbon of the same series (C₇H₁₂), homologous with acetylene or ethine ΘΚΠ the world > matter > chemistry > organic chemistry > hydrocarbons > [noun] > alkynes > straight-chained, by number of carbon atoms > seven heptine1877 1877 H. Watts Fownes's Man. Elem. Chem. (ed. 12) II. 64 Heptine, or œnanthidene, is formed by the action of potash on œnanthidene dibromide. hepˈtoic adj. applied to fatty acids, aldehydes, etc. belonging to the heptacarbon series, as heptoic acid, C₇H₁₄O₂ ΚΠ 1865–72 H. Watts Dict. Chem. (1882) III. 295 Of these acids, one only is accurately known. viz. NormalHeptoic or Œnanthylic acid. heptonene n. a liquid hydrocarbon of the valylene series. ΚΠ 1889 H. F. Morley & M. M. P. Muir Watts' Dict. Chem. (rev. ed.) II. 680/1 Heptonene C₇H₁₀. heptyl n. /ˈhɛptɪl/ [see -yl suffix] the hydrocarbon radical (C₇H₁₅), of heptylic or œnanthylic alcohol and its derivatives. ΚΠ 1865–72 H. Watts Dict. Chem. (1882) III. 144 Chloride of heptyl (C₇H₁₅Cl) is a colourless liquid having an agreeable fruity odour, and burning with a smoky green-bordered flame. 1868 H. B. Jones & H. Watts Fownes's Man. Elem. Chem. (ed. 10) 630 Another heptyl alcohol was separated..from fusel-oil. ˈheptylaˌmine n. (see amine n.). ΚΠ 1865–72 H. Watts Dict. Chem. (1882) III. 147 When distilled with caustic potash, it yields heptylamine (C₇H₁₇N) as a light oily liquid, having an ammoniacal aromatic odour. hepˈtylic adj. ΚΠ 1865–72 H. Watts Dict. Chem. (1882) III. 145 Preparation of Heptylic alcohol from Castor-oil. This entry has not yet been fully updated (first published 1898; most recently modified version published online March 2022). < n.1865
随便看	θ21181 θ211810 θ211811 θ211812 θ211813 θ211814 θ211815 θ211816 θ211817 θ211818 θ211819 θ21182 θ208741 θ208742 θ208743 θ208744 θ208745 θ208746 θ208747 θ208748 θ208749 θ20875 θ208750 θ208751 θ208752