- potassium carbonate, especially the crude impure form obtained from wood ashes.
- potassium hydroxide.
- the oxide of potassium, K2O.
- potassium, as carbonate of potash.
Origin of potash
Examples from the Web for potash
Crystals of iodine as opposed to permanganate of potash for antiseptic he discussed.The Leopard Woman
Stewart Edward White
This composition is simply a mixture of phosphorus, glue, and chlorate of potash.The Story of a Tinder-box
Charles Meymott Tidy
The most important are carbonate of soda, potash, and cyanide of potassium.Practical Mechanics for Boys
J. S. Zerbe
They knew also how to combine mercury, sulphur and potash to produce vermilion.Chinese Painters
The object of Mason was to carry on the manufacture of potash.Cattle and Their Diseases
- another name for potassium carbonate, esp the form obtained by leaching wood ash
- another name for potassium hydroxide
- potassium chemically combined in certain compoundschloride of potash
Word Origin and History for potash
1751, earlier -pot-ashes (1640s), a loan-translation of older Dutch potaschen, literally "pot ashes" (16c.); so called because it was originally obtained by soaking wood ashes in water and evaporating the mixture in an iron pot. Cf. German Pottasche, Danish potaske, Swedish pottaska, all also from Dutch. See also potassium. French potasse (1570s), Italian potassa are Germanic loan-words. The original plural was pot-ashes.
- Any of several chemical compounds that contain potassium, especially potassium carbonate (K2CO3), which is a strongly alkaline material obtained from wood ashes and used in fertilizers.