Hindu Achievements in Exact Science: A Study in the History of Scientific Development c17.10

c17.10

7. The metallurgists of the same period were familiar with the processes of extraction, purification, “killing” (formation of oxides, chlorides, and oxy-chlorides), calcination, incineration, powdering, solution, distillation, precipitation, rinsing, drying, melting, casting, filing, etc. With the help of apparatus and reagents they subjected each of the known minerals to all these processes. Heat was applied in different measures for different ends.⁵⁹