naphthalicadj.
/nafˈθalɪk/, /napˈθalɪk/, U.S. /næpˈθælɪk/, /næfˈθælɪk/ 1. Chemistry naphthalic acid n.
a. = phthalic acid n. at phthalic adj. 1b. Now historical.
ΘΚΠ
the world > matter > chemistry > organic chemistry > organic acids > [noun] > miscellaneous other organic acids
melilithic acid1803
melanic acid1822
fulminic acid1824
sulphovinic acid1826
xanthic acid1831
alcoothionic acid1834
althionic acid1834
naphthalic acid1837
murexan1838
oxalhydric acid1838
pimelic acid1838
pyruvic acid1838
thionuric acid1838
glucic acid1840
sericic acid1841
anthranilic acid1842
acrylic acid1843
ulmin1843
rhoeadic acid1846
alizaric acid1848
thiacetic acid1854
fulminuric acid1855
phthalic acid1857
anchoic acid1858
graphitic acid1864
tropic acid1867
thymotic acid1868
octoic acid1881
nucleinic acid1893
polyphosphoric acid1895
hydnocarpic acid1905
glucuronic acid1909
octanoic acid1909
Reinecke acid1928
propenoic acid1948
lipoic acid1951
picloram1965
wyerone acid1970
1837 R. D. Thomson Brit. Ann. 347 If this substance be boiled with nitric acid, the solution lets fall on cooling, crystals in the form of plates which are hydrous napthalic [sic] acid.
1838 T. Thomson Chem. Org. Bodies 27 Naphthalic acid was discovered and described by M. Laurent.
1851 Philos. Trans. (Royal Soc.) 141 441 The liquid..now contains the acid which I called in my former papers alizaric acid, and which Laurent and Gerhardt consider as identical with naphthalic acid.
1969 Isis 60 502 His theory..had been confirmed by the discovery of naphthalic (i.e., phthalic) acid.
b. A colourless crystalline dicarboxylic acid derived from naphthalene; naphthalene-1,8-dicarboxylic acid, C10H6(COOH)2.
ΘΚΠ
the world > matter > chemistry > organic chemistry > organic acids > [noun] > dicarboxylic acids > miscellaneous others
suberic acid1796
oxalovinic acid1838
citraconic acid1840
melanic acid1840
citramalic acid1864
citratartaric acid1864
isophthalic acid1870
methylmalonic acid1889
norpinic acid1909
naphthalic acid1920
1920 Jrnl. Industr. & Engin. Chem. 13 824/1 Acenap[h]thene readily loses two atoms of oxygen to form acenaphthylene and on further oxidation gives naphthalic acid.
1967 I. L. Finar Org. Chem. (ed. 5) I. 767 Naphthalic acid may be prepared by oxidising acenaphthene with acid dichromate.
1991 Zeitschr. f. Naturforschung C. 46 893 The tolerance of maize to root-applied imazethapyr can be increased by pretreating plants with the potassium salt of naphthalic acid.
2. Chemistry. Derived from or related to naphthalene or naphthalic acid (†or phthalic acid). Chiefly in the names of chemical compounds.
ΚΠ
1837 R. D. Thomson Brit. Ann. 355 Naphthalic ether.—This is an oleaginous substance.
1861 Sci. Amer. 16 Nov. 314/2 The formula of the latter substance [sc. alizarine]..denotes that probably it belongs to the naphthalic series.
1967 I. L. Finar Org. Chem. (ed. 5) I. 767 It [sc. naphthalic acid] is a solid, and when heated at 180° forms naphthalic anhydride.
1993 Weed Technol. 7 174 Naphthalic anhydride was also an effective safener against increased corn injury when 3000 ppm piperonyl butoxide was applied foliarly.
3. Of the nature of, derived from, or resembling naphtha; (also) redolent of naphthalene. rare.
ΚΠ
1859 Chambers's Jrnl. 11 211 An abominable naphthalic fluid, which is to blind and suffocate the enemy.
1862 Sci. Amer. 1 Nov. 279/2 The base from which it [sc. chinoline blue] is derived..is also shown along with several other naphthalic products, magenta crystals and picric acid.
1993 J. Meades Pompey (1994) 18 A little boy enters the naphthalic darkness of his mother's wardrobe.
This entry has been updated (OED Third Edition, June 2003; most recently modified version published online March 2022).
<
adj.1837