arsenousadj.

Brit.

/ˈɑːsənəs/, U.S.

/ˈɑrsənəs/

Origin: Formed within English, by derivation. Etymons: arsenic n., -ous suffix.

Etymology: < arsen- (in arsenic n.) + -ous suffix. Compare earlier arsenious adj.

Chemistry.

Designating compounds of arsenic in which the element has an oxidation state of +3; = arsenious adj.Chiefly in arsenous acid n. a weak acid, H₃AsO₃, formed when arsenic trioxide dissolves in water; = arsenious acid n. at arsenious adj. Compounds.

ΚΠ

1802 Jrnl. Nat. Philos. Apr. 307 The arsenous acid also possesses this property.

1887 O. Oldberg & J. H. Long Lab. Man. Chem. viii. 73 Hydrogen sulphide precipitates acid solutions of arsenous compounds, as arsenous sulphide, As₂S₃.

1912 Proc. Amer. Pharmaceut. Assoc. 75 If bicarbonate is used it will become necessary to determine the arsenous acid content iodometrically.

1962 BSI News Feb. 38 A list of pesticide chemicals..to which it is considered unnecessary to assign a recommended common name... Arsenous oxide.

2004 Environmental Health Perspectives 120 1418/3 Arsenous acid (the predominant form of arsenic in flooded rice paddies) is indistinguishable from silicic acid to the rice plant.

This entry has been updated (OED Third Edition, September 2018; most recently modified version published online March 2022).

单词	arsenous
释义	arsenousadj. Brit. /ˈɑːsənəs/, U.S. /ˈɑrsənəs/ Origin: Formed within English, by derivation. Etymons: arsenic n., -ous suffix. Etymology: < arsen- (in arsenic n.) + -ous suffix. Compare earlier arsenious adj. Chemistry. Designating compounds of arsenic in which the element has an oxidation state of +3; = arsenious adj.Chiefly in arsenous acid n. a weak acid, H₃AsO₃, formed when arsenic trioxide dissolves in water; = arsenious acid n. at arsenious adj. Compounds. ΚΠ 1802 Jrnl. Nat. Philos. Apr. 307 The arsenous acid also possesses this property. 1887 O. Oldberg & J. H. Long Lab. Man. Chem. viii. 73 Hydrogen sulphide precipitates acid solutions of arsenous compounds, as arsenous sulphide, As₂S₃. 1912 Proc. Amer. Pharmaceut. Assoc. 75 If bicarbonate is used it will become necessary to determine the arsenous acid content iodometrically. 1962 BSI News Feb. 38 A list of pesticide chemicals..to which it is considered unnecessary to assign a recommended common name... Arsenous oxide. 2004 Environmental Health Perspectives 120 1418/3 Arsenous acid (the predominant form of arsenic in flooded rice paddies) is indistinguishable from silicic acid to the rice plant. This entry has been updated (OED Third Edition, September 2018; most recently modified version published online March 2022). < adj.1802
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