Naphtha vitrioli
[NL., naphtha of vitriol]
(Old Chem.),
common ethyl ether; — formerly called sulphuric
ether. See Ether.
Naphthalate
(Naph"tha*late) n. (Chem.) A salt of naphthalic acid; a phthalate. [Obs.]
Naphthalene
(Naph"tha*lene) n. (Chem.) A white crystalline aromatic hydrocarbon, C10H8, analogous
to benzene, and obtained by the distillation of certain bituminous materials, such as the heavy oil of coal
tar. It is the type and basis of a large number of derivatives among organic compounds. Formerly called
also naphthaline.
Naphthalene red (Chem.),
a dyestuff obtained from certain diazo derivatives of naphthylamine, and
called also magdala red. — Naphthalene yellow (Chem.), a yellow dyestuff obtained from certain
nitro derivatives of naphthol.
Naphthalenic
(Naph`tha*len"ic) a. (Chem.) Pertaining to , or derived from, naphthalene; — used specifically
to designate a yellow crystalline substance, called naphthalenic acid and also hydroxy quinone, and
obtained from certain derivatives of naphthol.
Naphthalic
(Naph*tha"lic) a. (Chem.) (a) Pertaining to, derived from, or related to, naphthalene; —
used specifically to denote any one of a series of acids derived from naphthalene, and called naphthalene
acids. (b) Formerly, designating an acid probably identical with phthalic acid.
Naphthalidine
(Naph*thal"i*dine) n. [Naphthalene + toluidine.] (Chem.) Same as Naphthylamine.
Naphthalin
(Naph"tha*lin Naph"tha*line) n. [F. naphthaline.] (Chem.) See Naphthalene.
Naphthalize
(Naph"tha*lize) v. t. (Chem.) To mingle, saturate, or impregnate, with naphtha.
Naphthazarin
(Naph*thaz"a*rin) n. [Naphthalene + alizarin.] (Chem.) A dyestuff, resembling alizarin,
obtained from naphthoquinone as a red crystalline substance with a bright green, metallic luster; — called
also naphthalizarin.
Naphthene
(Naph"thene) n. (Chem.) A peculiar hydrocarbon occuring as an ingredient of Caucasian
petroleum.
Naphthide
(Naph"thide) n. (Chem.) A compound of naphthalene or its radical with a metallic element; as,
mercuric naphthide.
Naphthoic
(Naph*tho"ic) a. (Chem.) Pertaining to, derived from, or related to, naphthalene; — used
specifically to designate any one of a series of carboxyl derivatives, called naphthoic acids.
Naphthol
(Naph"thol) n. [Naphthalene + -ol.] (Chem.) Any one of a series of hydroxyl derivatives of
naphthalene, analogous to phenol. In general they are crystalline substances with a phenol (carbolic)
odor.
Naphthol blue,
Naphthol orange,
Naphthol yellow (Chem.),
brilliant dyestuffs produced from certain
complex nitrogenous derivatives of naphthol or naphthoquinone.
Naphthoquinone
(Naph`tho*qui"none) n. [Naphthalene + quinone.] (Chem.) A yellow crystalline substance,
C10H6O2, analogous to quinone, obtained by oxidizing naphthalene with chromic acid.
Naphthyl
(Naph"thyl) n. [Naphthalene + -yl.] (Chem.) A hydrocarbon radical regarded as the essential
residue of naphthalene.
Naphthylamine
(Naph`thyl*am"ine) n. (Chem.) One of two basic amido derivatives of naphthalene,
C10H7.NH2, forming crystalline solids.