A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v1.c19.5
A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v1.c19.5
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v1.c19.5
"The efflorescences thus produced consist of three groups; 1st, the neutral, which contain no carbonate of soda (these consist chiefly of sodium chloride and sulphate, and frequently magnesium sulphate); 2nd, the alkaline chlorides and sulphates, but no lime or magnesian salt; 3rd, the nitrous efflorescences."—Dr. Center's Note on *Reh* quoted in Watt's Dictionary of the "Economic Products of India". Vol. VI. Part I. pp. 410-417.