History of Chemistry in Ancient and Medieval India, Incorporating the History of Hindu Chemistry by Acharya Prafulla Chandra Ray c30.s2: Tin
History of Chemistry in Ancient and Medieval India, Incorporating the History of Hindu Chemistry by Acharya Prafulla Chandra Ray c30.s2
- Language
- English
Tin
c30.s2.1
*Vangam* (tin) is of two kinds—*kshurakam* and *misrakam*, the former is endowed with superior qualities; the latter cannot be recommended for medicinal uses. 153.
c30.s2.2
*Kshurakam* is white, soft, cool (to the touch), readily fusible and bright, and does not clink (when bent or struck). 154
c30.s2.3
*Misrakam* is dirty white * * *. This is an anthelmintic and a destroyer of urinary disorders. 155
c30.s2.4
Molten tin is dropped into the juice of *Vitex negundo* mixed with turmeric, the process being repeated three times the metal undergoes purification. 156
c30.s2.5
Tin-foil is to be smeared with a paste of orpiment and the milky juice of *Calotropis gigantea*, and then to be covered with the ashes of the bark of *Ficus bengalensis* and *Tamarindus indica* and afterwards roasted and reduced to ashes.