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A white crystalline substance, C6H5.C6H5, obtained by leading benzene through a heated iron tube. It consists of two benzene or phenyl radicals united.

A combining form indicating fluorine as an ingredient; as in fluosilicate, fluobenzene.

A compound containing only hydrogen and carbon, as methane, benzene, etc.; also, by extension, any of their derivatives. Hydrocarbon burner, furnace, stove, a burner, furnace, or stove with which liquid fuel, as petroleum, is used.

A white, crystalline benzene derivative, C8H10O2, obtained by the reduction of phlorone.

phenol, resembling, and metameric with, pyrocatechin and resorcin. Called also dihydroxy benzene.

er, forming the chief part of the first distillate of coal tar, and consisting largely of benzene and toluene. -- Light sails (Naut.), all the sails above the topsails, with, also, the studding sails and flying jib. Dana. -- Light sleeper, one easily wakened. -- Light weight, a prize fighter, boxer, wrestler, or joc…

A colorless, fragrant liquid, C6H3(CH3)3, of the benzene series of hydrocarbons, obtained by distilling acetone with sulphuric acid. -- Me*sit`y*len"ic, a.

That variety of xylene, or dimethyl benzene, in which the two methyl groups occupy the meta position with reference to each other. It is a colorless inf

See Nitrobenzene.

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 dyes…

oric, nitrocalcite; also, designating the group or radical NO2, or its compounds, as nitrobenzene. Nitro group, the radical NO2; -- called also nitroxyl.

See Nitrobenzene.

nt is a colorless, volatile, inflammable liquid, found in petroleum, and a constituent of benzene or ligroin.

Connection with, or affinity to, one variety of isomerism, characteristic of the benzene compounds; -- contrasted with meta- or para-; as, the ortho position; hence, designating any substance showing such isomerism; as, an ortho compound.

groups are in the ortho position; a colorless, liquid, combustible hydrocarbon resembling benzene.

fication. (b) Specifically: (Organ. Chem.) That two groups or radicals substituted in the benzene nucleus are opposite, or in the respective positions 1 and 4; 2 and 5; or 3 and 6, as paraxylene; paroxybenzoic acid. Cf. Ortho-, and Meta-. Also used adjectively.

Benzene. [Obs.]

A sweet amorphous deliquescent substance obtained indirectly from benzene, and isometric with, and resembling, dextrose.

A hydrocarbon radical (C6H5) regarded as the essential residue of benzene, and the basis of an immense number of aromatic derivatives. Phenyl hydrate (Chem.), phenol or carbolic acid. -- Phenyl hydrazine (Chem.), a nitrogenous base (C6H5.N2H3) produced artificially as a colorless oil which unites with acids, ketones,…

A hypothetic radical (C6H4) occurring in certain derivatives of benzene; as, phenylene diamine.