History of Technology in India, Vol. I: From Antiquity to c. 1200 A.D. v1.c13.s2.t8.4
History of Technology in India, Vol. I: From Antiquity to c. 1200 A.D. v1.c13.s2.t8.4
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v1.c13.s2.t8.4
The Ayurvedic literature also describes the process of purification of this metal and its reconversion to HgS for Mercurial preparations. In latter period Hg has found its use also in amalgamation process for the extraction and over laying or coating of Gold and Silver (Gilding) on copper or brass objects as well as for the extraction of Gold from very lean ores. In the Medieval period with the progress of the alchemical processes its use has increased in many other areas such as thermometry etc.