| http://www.w3.org/ns/prov#value | - Examples of the alkaline substance to be added include alkali metal hydroxides such as sodium hydroxide and potassium hydroxide; amines such as mono-, di- and triethanolamines; alkali metal carbonates and bicarbonates such as sodium carbonate, potassium carbonate and sodium bicarbonate; metal salts of organic acids such as calcium acetate and barium acetate; ammonia and ammonium compounds; etc.
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