A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v1.c11.t16: Crucibles
A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v1.c11.t16
- Language
- English
Crucibles
v1.c11.t16.1
"Earth of black red, yellow and white colour * * burnt husks of paddy, soot, earth from the ant-hill, well burnt excrements of the goat and the horse * * rust of iron" * * [varying proportions of the above ingredients are used for making crucibles, retorts, &c.]
v1.c11.t16.2
"There are two kinds of crucibles, *viz.*, open and covered (lit. blind) * * * the covered one resembles the nipple of a cow and is fitted with a lid, which has a raised head.
v1.c11.t16.3
"For the purification of silver, the crucible is best made of two parts of the ashes of *schrebera swietenoides*, and one part each of brick dust and earth."¹