pearl ash


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pearl ash:

see potassium carbonatepotassium carbonate,
chemical compound, K2CO3, white, crystalline, deliquescent substance that forms a strongly alkaline water solution. It is available commercially as a white, granular powder commonly called potash, or pearl ash.
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pearl ash

[′pərl ‚ash]
(materials)
An impure substance derived from potash following partial purification from wood ash.
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