History of Chemistry in Ancient and Medieval India, Incorporating the History of Hindu Chemistry by Acharya Prafulla Chandra Ray c27.s1.8
History of Chemistry in Ancient and Medieval India, Incorporating the History of Hindu Chemistry by Acharya Prafulla Chandra Ray c27.s1.8
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c27.s1.8
*Vaikranta* is purified by being heated three days with the salts and the alkalies, or by digestion with the acids, urines or decoction of *Dolichos biflorus* and the plantain, or of *Paspalum scrobiculatum*. It is killed by being roasted in a covered crucible eight times in combination with sulphur, lemon juice and *Paspalum scrobiculatum*. 67-68