ba tshwa
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བ་ཚྭ
alkali, [soda] salt, salty [IW]
salt [ocean] [RY]
alkali, soda, sea water, impure soda incrusting ground near salt lakes [JV]
alkali, soda [RY]
(med) Alkaline soil (Phrin Las 1987). Orth. variant : ba tsha. Alkali or soda (Drungtso (1999). From arabic al-qualy, ashes of saltwort. Any strongly basic substance, such as a hydroxide or carbonate of an alkali or alkaline earth metal (e.g., sodium, potassium). Alkaline soils are usually clays with a pH above 8,5. Alkaline or soda lakes are caracterized by a high pH of 9-12 and a high concentration of carbonate salts. The tibetan plateau counts some 250 alkaline lakes, of which lake Zabuye in the Kailash region became the principal source for Lithium in China (mindat.org, wikipedia). Johannes Schmidt (talk) 13:05, 22 November 2021 (UTC)