History of Chemistry in Ancient and Medieval India, Incorporating the History of Hindu Chemistry by Acharya Prafulla Chandra Ray c24: Chapter X. Chemistry In Rasachintamani Of Madanantadeva
History of Chemistry in Ancient and Medieval India, Incorporating the History of Hindu Chemistry by Acharya Prafulla Chandra Ray c24
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Chapter X. Chemistry In Rasachintamani Of Madanantadeva
c24.1
*Svetabhasma* (calomel):—The preparation is very similar to that described in the previous chapter for *karpururasa*.
c24.2
Two processes for the fabrication of gold are described, which are much the same as already quoted from Yasodhara.
c24.3
*Process for the Fabrication of Silver*:—Take one part of bell-metal, two parts of silver, four parts of steel (?) * * these are to be fused with tin and borax; —by this process silver can be made which will pass current for commercial purposes.
c24.4
*Copper from Blue Vitriol*:—Blue vitriol rubbed with three varieties of myrobalans, honey, borax, etc., when heated strongly, gives its essence.
c24.5
*Extraction of Zinc from Calamine*:—The process is much the same as given above by Yasodhara, with this difference that, whereas Yasodhara hits off the completion of reduction when the flame issuing from the pot ceases to be blue, the present author directs that
c24.6
CHAPTER XI