pearl ashn.

Brit.

/ˈpəːl ˌaʃ/, U.S.

/ˈpərl ˌæʃ/

Forms: see pearl n.¹ and adj. and ash n.²

Origin: Formed within English, by compounding. Etymons: pearl n.¹, ash n.²

Etymology: < pearl n.¹ + ash n.²

Now chiefly historical.

In singular and plural. Potassium carbonate as a traded commodity. Cf. potash n.

ΘΚΠ

society > occupation and work > materials > derived or manufactured material > vegetable extracts or preparations > [noun] > potash

gravelled ashes1579

salt of wormwood1617

salt of tartar1646

pearl ash1703

kali1799

pearls1809

1703 A. Boyer Hist. King William III III. 381 An act for levying further Duties upon Sweets,..and for permitting the Importation of Pearl Ashes.

1796 R. Kirwan Elements Mineral. (ed. 2) II. 269 Take one part of the roasted Ore, 3 of Pearl Ash.

1830 Philos. Trans. (Royal Soc.) 120 48 Eight parts of this was fused with as much pearlash as was equivalent to one part of potassa, and a glass was formed.

1866 H. E. Roscoe Lessons Elem. Chem. xix. 163 This is the crude potassium carbonate, called, when purified by recrystallization, pearl-ash.

1922 T. M. Lowry Inorg. Chem. vi. 74 Cavendish found that..1000 parts of pearl-ashes lost 284 to 287 parts of fixed air.

1998 Harper's Mag. July 40/1 Jamestown was known as ‘the Pearl City’, owing to its production of pearl ash used in the manufacture of soap and glass.

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

单词	pearl ash
释义	pearl ashn. Brit. /ˈpəːl ˌaʃ/, U.S. /ˈpərl ˌæʃ/ Forms: see pearl n.¹ and adj. and ash n.² Origin: Formed within English, by compounding. Etymons: pearl n.¹, ash n.² Etymology: < pearl n.¹ + ash n.² Now chiefly historical. In singular and plural. Potassium carbonate as a traded commodity. Cf. potash n. ΘΚΠ society > occupation and work > materials > derived or manufactured material > vegetable extracts or preparations > [noun] > potash gravelled ashes1579 salt of wormwood1617 salt of tartar1646 pearl ash1703 kali1799 pearls1809 1703 A. Boyer Hist. King William III III. 381 An act for levying further Duties upon Sweets,..and for permitting the Importation of Pearl Ashes. 1796 R. Kirwan Elements Mineral. (ed. 2) II. 269 Take one part of the roasted Ore, 3 of Pearl Ash. 1830 Philos. Trans. (Royal Soc.) 120 48 Eight parts of this was fused with as much pearlash as was equivalent to one part of potassa, and a glass was formed. 1866 H. E. Roscoe Lessons Elem. Chem. xix. 163 This is the crude potassium carbonate, called, when purified by recrystallization, pearl-ash. 1922 T. M. Lowry Inorg. Chem. vi. 74 Cavendish found that..1000 parts of pearl-ashes lost 284 to 287 parts of fixed air. 1998 Harper's Mag. July 40/1 Jamestown was known as ‘the Pearl City’, owing to its production of pearl ash used in the manufacture of soap and glass. This entry has been updated (OED Third Edition, September 2005; most recently modified version published online March 2022). < n.1703
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