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Baryta water hydrolyses it to urea.

Barium hydroxide is soluble in water, forming a strongly-alkaline solution, Baryta water, which is much used in chemical analysis.

It may be readily recognized by the white precipitate which it forms when passed through lime or baryta water.

Add baryta water till alkaline, and evaporate to dryness.

To a solution of 3.55 grams of the salt contained in a half-litre flask, 250 c.c. of a solution of baryta water is added.