A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v2.c32.s7: Chemistry in Rasachintamani of Madanantadeva
A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v2.c32.s7
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Chemistry in Rasachintamani of Madanantadeva
v2.c32.s7.1
*Sans. texts, p. 68.*
v2.c32.s7.2
Svetabhasma : *Cf. ante p. 16* and also Vol. i, pp. 250-51.
v2.c32.s7.3
*Sans. Texts, pp. 69 70.*
v2.c32.s7.4
Two processes for the fabrication of gold :— much the same as already quoted from Yasodhara.
v2.c32.s7.5
Process for the fabrication of silver :—
v2.c32.s7.6
Take 1 part of bell-metal, 2 parts of silver, 4 parts of steel (?) * * * these to be fused with tin and borax ;—by this process will be made silver which will pass current for commercial purposes.
v2.c32.s7.7
∗ शतवेधी and सहस्रवेधी are technical terms; for the meaning of वेध vide Vol. i, p. 120.
v2.c32.s7.8
Extraction of zinc from calamine :—
v2.c32.s7.9
The process is much the same as given above (p. 17), 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 the pot is to be taken out of the furnace as soon as white fumes begin to appear. The crucible is then to be held in an inclined position so that the lead-like essence of calamine drops on the ground.