Nitrous acid(Chem.), a hypothetical acid of nitrogen HNO2, not known in the free state, but forming a well known series of salts, viz., the nitrites.Nitrous oxide. See Laughing gas.

(Ni*trox"yl) n. [Nitro- + oxygen + -yl.] (Chem.) The group NO2, usually called the nitro group.

(||Ni"trum) n. [L., natron. See Niter.] (Old Chem.) Niter.

||Nitrum flammans[L., flaming niter] (Old Chem.), ammonium nitrate; — probably so called because it deflagerates when suddenly heated.

(Ni"try) a. (Chem.) Nitrous. [Obs.]

(Ni"tryl) n. [Nitro- + - yl.] (Chem.) A name sometimes given to the nitro group or radical.

Nitromethane to Nocturn

(Ni`tro*meth"ane) n. [Nitro- + methane.] (Chem.) A nitro derivative of methane obtained as a mobile liquid; — called also nitrocarbol.

(Ni`tro*mu`ri*at"ic) a. [Cf. F. nitromuriatique. See Nitro-, and Muriatic.] (Chem.) Of, pertaining to, or composed of, nitric acid and muriatic acid; nitrohydrochloric. See Nitrohydrochloric.

(Ni`tro*ph"nol) n. [Nitro- + phenol.] (Chem.) Any one of a series of nitro derivatives of phenol. They are yellow oily or crystalline substances and have well-defined acid properties, as picric acid.

(Ni`tro*prus"sic) a. [Nitro- + prussic.] (Chem.) Pertaining to, derived from, or designating, a complex acid called nitroprussic acid, obtained indirectly by the action of nitric acid on potassium ferrocyanide as a red crystalline unstable substance. It forms salts called nitroprussides, which give a rich purple color with alkaline sulphides.

(Ni`tro*prus"side) n. See Nitroprussic.

(Ni`tro*qui"nol) n. [Nitro- + quine + -ol.] (Chem.) A hypothetical nitro derivative of quinol or hydroquinone, not known in the free state, but forming a well defined series of derivatives.

(Ni`tro*sac"cha*rin) n. [Nitro- + saccharin.] (Chem.) An explosive nitro derivative of certain sugars, analogous to nitroglycerin, gun cotton, etc.

(Ni`tro*sal`i*cyl"ic) a. [Nitro- + salicylic.] (Chem.) Of, pertaining to, or designating, a nitro derivative of salicylic acid, called also anilic acid.

(Ni*trose") a. (Chem.) See Nitrous.

(Ni*tro"so-) (Chem.) A prefix (also used adjectively) designating the group or radical NO, called the nitroso group, or its compounds.

(Ni*tro"syl) n. [Nitroso- + -yl.] (Chem.) the radical NO, called also the nitroso group. The term is sometimes loosely used to designate certain nitro compounds; as, nitrosyl sulphuric acid. Used also adjectively.

(Ni`tro*syl"ic) a. (Chem.) Of, pertaining to, or containing, nitrosyl; as, nitrosylic acid.

(Ni"trous) a. [L. nitrosus full of natron: cf. F. nitreux. See Niter.]

1. Of, pertaining to, or containing, niter; of the quality of niter, or resembling it.

2. (Chem.) Of, pertaining to, or designating, any one of those compounds in which nitrogen has a relatively lower valence as contrasted with nitric compounds.

  By PanEris using Melati.

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