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A salt of hypophosphoric acid.

A salt of hypophosphorous acid.

phosphorus in a lower state of oxidation than in phosphoric compounds; as, hypophosphoric acid. Hypophosphoric acid (Chem.), an acid, P2H4O6, produced by the slow oxidation of moist phosphorus, and isolated only as a solution in water. It is regarded as a condensation product of one molecule of phosphoric acid with one…

hosphorus in a lower state of oxidation than in phosphoric compounds; as, hypophosphorous acid. Hypophosphorous acid (Chem.) , an acid, H3PO2, whose salts are produced by the action of barium hygrate on phosphorus. It may be obtained from its water solution, by exaporation and freezing, as a white crystalline substance…

A salt of hyposulphuric acid.

A salt of what was formerly called hyposulphurous acid; a thiosulphate. [Obs.]

sulphur in a lower state of oxidation than in the sulphuric compounds; as, hyposulphuric acid. Hyposulphuric acid, an acid, H2S2O6, obtained by the action of manganese dioxide on sulphur dioxide, and known only in a watery solution and in its salts; -- called also dithionic acid. See Dithionic.

g to, or containing, sulphur, all, or a part, in a low state of oxidation. Hyposulphurous acid. (a) Thiosulphuric acid. [Obs.] (b) An acid, H2SO2, obtained by the reduction of sulphurous acid. It is not obtained in the free state, but in an orange-yellow water solution, which is a strong reducing and bleaching agent. C…

A crystalline, nitrogenous substance, closely related to xanthin and uric acid, widely distributed through the animal body, but especially in muscle tissue; -- called also sarcin, sarkin.

Pertaining to, or obtained from, nux vomica or St. Ignatius's bean; as, igasuric acid.

Pertaining to, or derived from, the holly (Ilex), and allied plants; as, ilicic acid.

To saturate; to imbue. [Obs.] "Earth, imbibed with . . . acid." Sir I. Newton.

A compound with, or derivative of, the imido group; specif., a compound of one or more acid radicals with the imido group, or with a monamine; hence, also, a derivative of ammonia, in which two atoms of hydrogen have been replaced by divalent basic or acid radicals; -- frequently used as a combining form; as, succinimi…

to, containing, or combined with, the radical NH, which is called the imido group. Imido acid, an organic acid, consisting of one or more acid radicals so united with the imido group that it contains replaceable acid hydrogen, and plays the part of an acid; as, uric acid, succinimide, etc., are imido acids.…

rtain substances, in distinction from other forms which are optically active; as, racemic acid is an inactive tartaric acid.

cken (a liquid) by the mixture of another substance, or by evaporating the thinner parts. Acids dissolve or attenuate; alkalies precipitate or incrassate. Sir I. Newton. Liquors which time hath incrassated into jellies. Sir T. Browne.

us compound, C7H6N2, analogous to indol, and produced from a diazo derivative or cinnamic acid.

ght brown sirup. It has a nauseous bitter taste, a decomposes or drying. By the action of acids, ferments, etc., it breaks down into sugar and indigo. It is the source of natural indigo.

That which indicates the condition of acidity, alkalinity, or the deficiency, excess, or sufficiency of a standard reagent, by causing an appearance, disappearance, or change of color, as in titration or volumetric analysis.

y be crystallized by sublimation. Indigo blue is also made from artificial amido cinnamic acid, and from artificial isatine; and these methods are of great commercial importance. Called also indigotin. (b) A dark, dull blue color like the indigo of commerce. -- Indigo brown (Chem.), a brown resinous substance found in…