Glauber, Johann Rudolf (1604-1668), a German chemist. Glauber was the first to describe clearly the preparation of hydrochloric acid. He discovered sodium sulfate, which is commonly known today as Glauber's salt. Glauber found it had laxative properties and attributed to it remarkable healing powers. Glauber's salt is still sometimes used as a mild laxative, and also has industrial uses, chiefly in the manufacture of glass.
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