persaltn.

Brit.

/ˈpəːsɔːlt/,

/ˈpəːsɒlt/, U.S.

/ˈpərˌsɔlt/,

/ˈpərˌsɑlt/

Origin: Formed within English, by derivation. Etymons: per- prefix, salt n.¹

Etymology: < per- prefix + salt n.¹

Chemistry.

Originally (now rare): a salt in which the anion occurs in its greatest possible proportion relative to the metal cation. In later use: a perborate or other salt in which the anion contains a peroxide group.

ΘΚΠ

the world > matter > chemistry > chemical substances > salts > [noun] > specific types

perfixed salt1601

triple salt1800

persalt1822

bisalt1823

oxy-salt1833

sesquisalt1839

potash1843

Mohr's salt1905

1822 M. Faraday in Q. Jrnl. Sci. & Arts July 316 The per salts give it [sc. rhubarb paper] an olive-green tint, whilst the proto salts produce no change.

1838 Todd's Cycl. Anat. & Physiol. II. 504/1 A subphosphate, which on reaching the lungs became a per-salt.

1883 J. T. Taylor Hardwich's Man. Photogr. Chem. (ed. 9) 61 Free Ammonia..usually throws down a red Sesquixoide from the Persalts of Iron.

1916 Chem. Abstr. 10 2803 Heretofore bleaching with persalts, such as perborate, has been more costly than bleaching with chloride of lime.

1984 Notes & Rec. Royal Soc. 39 118 It was found to be preferable to use cheap water-soluble peroxides such as hydrogen peroxide or inorganic per-salts as catalysts, rather than organic compounds like dibenzoyl peroxide.

2003 Chem. Week (Nexis) 29 Jan. 21 Degussa also sees promise in combining inorganic oxidizers, including persalts, with organic fabric softening technology.

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

单词	persalt
释义	persaltn. Brit. /ˈpəːsɔːlt/, /ˈpəːsɒlt/, U.S. /ˈpərˌsɔlt/, /ˈpərˌsɑlt/ Origin: Formed within English, by derivation. Etymons: per- prefix, salt n.¹ Etymology: < per- prefix + salt n.¹ Chemistry. Originally (now rare): a salt in which the anion occurs in its greatest possible proportion relative to the metal cation. In later use: a perborate or other salt in which the anion contains a peroxide group. ΘΚΠ the world > matter > chemistry > chemical substances > salts > [noun] > specific types perfixed salt1601 triple salt1800 persalt1822 bisalt1823 oxy-salt1833 sesquisalt1839 potash1843 Mohr's salt1905 1822 M. Faraday in Q. Jrnl. Sci. & Arts July 316 The per salts give it [sc. rhubarb paper] an olive-green tint, whilst the proto salts produce no change. 1838 Todd's Cycl. Anat. & Physiol. II. 504/1 A subphosphate, which on reaching the lungs became a per-salt. 1883 J. T. Taylor Hardwich's Man. Photogr. Chem. (ed. 9) 61 Free Ammonia..usually throws down a red Sesquixoide from the Persalts of Iron. 1916 Chem. Abstr. 10 2803 Heretofore bleaching with persalts, such as perborate, has been more costly than bleaching with chloride of lime. 1984 Notes & Rec. Royal Soc. 39 118 It was found to be preferable to use cheap water-soluble peroxides such as hydrogen peroxide or inorganic per-salts as catalysts, rather than organic compounds like dibenzoyl peroxide. 2003 Chem. Week (Nexis) 29 Jan. 21 Degussa also sees promise in combining inorganic oxidizers, including persalts, with organic fabric softening technology. This entry has been updated (OED Third Edition, December 2005; most recently modified version published online June 2022). < n.1822
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