History of Technology in India, Vol. I: From Antiquity to c. 1200 A.D. v1.c18.s4.t5.11

v1.c18.s4.t5.11

It may be mentioned here that though, the term ‘*Rasa Karpura*’ is not found mentioned in this text the terms ‘*lavaṇa mūrcchanā*’ and ‘*rasa lavaṇa piṇḍa*’ and its preparation method (heating in *Kūpī* through *Sikatā* yantra) indicate that the mercurial or mercurous compound known as mercuric chloride was known and prepared in India since the later part of 12th century A.D.