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pearl ash

British  

noun

  1. the granular crystalline form of potassium carbonate

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

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An ad for baking powder in a local 1916 newspaper meant he could use that as a leavener, a welcome alternative to drafting pearl ash from a campfire.

From The Guardian

At that time there were about thirty families in the district, whose farms were in a respectable state of cultivation; and a large trade in timber, pot and pearl ashes was carried on.

From Project Gutenberg

Purified potassium carbonate is known as pearl ash.

From Project Gutenberg

Another receipt for pink or rose red says:—1 gallon of infusion of Brazil wood, with 2 oz. additional of pearl ash; but it is necessary to brush the wood often with alum water.

From Project Gutenberg

But some persons prefer pearl ashes, pounded marble, or other calcareous or alkaline substances; and perhaps with reason.

From Project Gutenberg