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dextrose; as, dextronic acid. Dextronic acid, a sirupy substance obtained by the partial oxidation of various carbohydrates, as dextrose, etc.

Deoxidation. [R.]

Applied to an acid having in each molecule two atoms of sulphur in the higher state of oxidation. Disulphuric acid, a thick oily liquid, H2S2O7, called also Nordhausen acid (from Nordhausen in the Harts, where it was originally manufactured), fuming sulphuric acid, and especially pyrosulphuric acid. See under Pyrosulph…

em.), a white crystalline substance, C14H8O9, found in bezoar stones, and obtained by the oxidation of gallic acid.

A gradual oxidation from exposure to air and moisture, as in the decay of old trees or of dead animals.

A red substance formed by the oxidation of tyrosin.

A yellow, crystalline substance, resembling aurin, and obtained by the oxidation of pittacal; -- called also eupittonic acid. [Written also eupitton.]

tion of human thought and faith. C. Kingsley. Acetous, or Acetic, fermentation, a form of oxidation in which alcohol is converted into vinegar or acetic acid by the agency of a specific fungus or ferment (Mycoderma aceti). The process involves two distinct reactions, in which the oxygen of the air is essential. An inte…

h is produced by the reduction of fluoresceïn, and from which the latter may be formed by oxidation.

ly in ants, nettles, pine needles, etc., and produced artifically in many ways, as by the oxidation of methyl alcohol, by the reduction of carbonic acid or the destructive distillation of oxalic acid. It is the first member of the fatty acids in the paraffin series, and is homologous with acetic acid.…

A yellow, crystalline substance, (C4H3O)2.C2O2, obtained by the oxidation of furoin. [Written also furil.]

e. Gluconic acid (Chem.), an organic acid, obtained as a colorless, sirupy liquid, by the oxidation of glucose; -- called also maltonic acid, and dextronic acid.

r derived from, glycerin. Glyceric acid (Chem.), an organic acid, obtained by the partial oxidation of glycerin, as a thick liquid. It is a hydroxyl derivative of propionic acid, and has both acid and alcoholic properties.

e wild grape (Ampelopsis quinquefolia), and produced artificially in many ways, as by the oxidation of glycol, -- whence its name. It is a sirupy, or white crystalline, substance, HO.CH2.CO2H, has the properties both of an alcohol and an acid, and is a type of the hydroxy acids; -- called also hydroxyacetic acid.…

A white, amorphous, deliquescent powder, (CO.H)2, obtained by the partial oxidation of glycol. It is a double aldehyde, between glycol and oxalic acid.

ing, graphite. Graphitic acid (Chem.), an organic acid, so called because obtained by the oxidation of graphite; -- usually called mellitic acid. -- Graphitic carbon, in iron or steel, that portion of the carbon which is present as graphite. Raymond.

A strongly alkaline base, CN3H5, formed by the oxidation of guanin, and also obtained combined with methyl in the decomposition of creatin. Boiled with dilute sulphuric acid, it yields urea and ammonia.

ic acid (Physiol.), a hypothetical acid, supposed to be formed from hemoglobin during its oxidation in the lungs, and to have the power of freeing carbonic acid from the sodium carbonate of the serum. Thudichum.

An alkaloid accompanying harmaline (in the Peganum harmala), and obtained from it by oxidation. It is a white crystalline substance.

A glucoside obtained as a white crystalline substance by partial oxidation of salicin, from a willow (Salix Helix of Linnæus.)