Agriculture. a whitish layer of mineral salts, especially sodium sulfate, sodium chloride, and magnesium sulfate, often occurring on top of soils where rainfall is low.
refined soda ash.
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How to use white alkali in a sentence
The sun had lifted over the rim of the desert, a red disc which turned the gleaming white alkali patches to rose.Dangerous Days | Mary Roberts Rinehart
In some parts there were fields of white alkali, making the lips salt and the eyes smart painfully.Forty Thousand Miles Over Land and Water | Lady (Ethel Gwendoline [Moffatt]) Vincent
Why, having in view these white alkali-patches that chiefly characterize Nevada, paint her as a leper.Deserted | Edward Bellamy
He took off his Stetson and removed its thin powdering of white alkali dust by slapping it noisily against his leather chaps.Prairie Flowers | James B. Hendryx
white alkali is not so fatal, yet many good shepherds lose lambs by allowing them to nibble around alkali beds.Total Per Cent Lambing Rules | Thomas Boylan
British Dictionary definitions for white alkali
refined sodium carbonate
any of several mineral salts, esp sodium sulphate, sodium chloride, and magnesium sulphate, that often appear on the surface of soils as a whitish layer in dry conditions
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