A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v1.c12.t2.46
A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v1.c12.t2.46
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v1.c12.t2.46
There are four varieties of Chapala—yellow, white, red and black. That which has the lustre of gold or silver is most appropriate for the fixation of mercury. The last two are indifferent and readily melt like lac and are useless. Chapala melts like tin when heated over fire—hence the name. 143-144