persulpho-comb. form

Stress is usually determined by a subsequent element and vowels may be reduced accordingly.

Origin: Formed within English, by derivation. Etymons: per- prefix, sulpho- comb. form.

Etymology: < per- prefix + sulpho- comb. form.Attested in a small number of English formations from the first half of the 19th cent. (compare quot. 1836 for persulphocyanuret n. ).

Chemistry. Now disused.

Forming the names of sulphur-containing chemical compounds containing the highest possible proportion of sulphur.

persulphocyanate n.

Brit.

/pəˌsʌlfə(ʊ)ˈsʌɪəneɪt/

U.S.

/pərˌsəlfoʊˈsaɪəˌneɪt/

a salt of persulphocyanic acid.

ΚΠ

1866 H. Watts Dict. Chem. IV. 379 The solutions of persulphocyanic acid in aqueous alkalis may be regarded..as persulphocyanates.

1880 Nature 12 Feb. 363/1 On persulphocyanate of silver.

persulphocyanic adj.

Brit.

/pəˌsʌlfə(ʊ)sʌɪˈanɪk/

U.S.

/pərˌsəlfoʊsaɪˈænɪk/

persulphocyanic acid, a yellow crystalline acid, H₂(CN)₂S₃, formed by the action of a strong acid on thiocyanic acid or a thiocyanate.

ΚΠ

1866 H. Watts Dict. Chem. IV. 378 Persulphocyanic acid.

1922 J. J. Sudborough Bernthsen's Text-bk. Org. Chem. (new ed.) xii. 285 It polymerizes to a yellow amorphous substance, and decomposes in concentrated aqueous solution, with formation of persulphocyanic acid.

† persulphocyanuret n. Obsolete = persulphocyanate n.

ΚΠ

1836 W. T. Brande Man. Chem. (ed. 4) 658 Persulphocyanuret of Iron..may be obtained in the form of a deliquescent uncrystallizable mass, of a red colour.

This entry has been updated (OED Third Edition, December 2005; most recently modified version published online March 2022).

单词	persulpho-
释义	persulpho-comb. form Stress is usually determined by a subsequent element and vowels may be reduced accordingly. Origin: Formed within English, by derivation. Etymons: per- prefix, sulpho- comb. form. Etymology: < per- prefix + sulpho- comb. form.Attested in a small number of English formations from the first half of the 19th cent. (compare quot. 1836 for persulphocyanuret n. ). Chemistry. Now disused. Forming the names of sulphur-containing chemical compounds containing the highest possible proportion of sulphur. persulphocyanate n. Brit. /pəˌsʌlfə(ʊ)ˈsʌɪəneɪt/ , U.S. /pərˌsəlfoʊˈsaɪəˌneɪt/ a salt of persulphocyanic acid. ΚΠ 1866 H. Watts Dict. Chem. IV. 379 The solutions of persulphocyanic acid in aqueous alkalis may be regarded..as persulphocyanates. 1880 Nature 12 Feb. 363/1 On persulphocyanate of silver. persulphocyanic adj. Brit. /pəˌsʌlfə(ʊ)sʌɪˈanɪk/ , U.S. /pərˌsəlfoʊsaɪˈænɪk/ persulphocyanic acid, a yellow crystalline acid, H₂(CN)₂S₃, formed by the action of a strong acid on thiocyanic acid or a thiocyanate. ΚΠ 1866 H. Watts Dict. Chem. IV. 378 Persulphocyanic acid. 1922 J. J. Sudborough Bernthsen's Text-bk. Org. Chem. (new ed.) xii. 285 It polymerizes to a yellow amorphous substance, and decomposes in concentrated aqueous solution, with formation of persulphocyanic acid. † persulphocyanuret n. Obsolete = persulphocyanate n. ΚΠ 1836 W. T. Brande Man. Chem. (ed. 4) 658 Persulphocyanuret of Iron..may be obtained in the form of a deliquescent uncrystallizable mass, of a red colour. This entry has been updated (OED Third Edition, December 2005; most recently modified version published online March 2022). < comb. form1836
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