A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v1.c13.25
A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v1.c13.25
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v1.c13.25
Possibly an efflorescence of magnesium sulphate or sodium sulphate; both are not uncommon. The yellow colour might be due to admixture with ferruginous dirt due to oxidation of the ferrous sulphate produced by similar causes with the other sulphates.