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Webster 1913 Edition

Hypophosphorous

Hyˊpo-phos′phor-ous

,
Adj.
[Pref.
hypo-
+
phosphorous
.]
(Chem.)
Pertaining to, or containing, phosphorus 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. It is a powerful reducing agent.

Webster 1828 Edition

Hypophosphorous

HYPOPHOS'PHOROUS

,
Noun.
[Gr. phosphorus.] The hypophosphorous acid contains less oxygen than the phosphorous, and is obtained from the phosphuret of baryte. It is a liquid which may be concentrated by evaporation, till it becomes viscid. It has a very sour taste, reddens vegetable blues, and does not crystalize.

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