[Pramāṇa](https://indike.org/pramana/) › [Studies](https://indike.org/pramana/ins) › [Science, technology and education](https://indike.org/pramana/ins.science) › [A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D.](https://indike.org/pramana/ins.science.ray-1902) › v2.c32.s15.6 # A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v2.c32.s15.6 A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v2.c32.s15.6 - **Language:** English ### [v2.c32.s15.6](https://indike.org/pramana/ins.science.ray-1902.v2.c32.s15.6) Saṅkhadrāvaka (\*aqua regia\*, see ante p. 24) is spoken of as an universal solvent . . . . This solvent with mercury is to be placed in a glazed crucible and subjected to heat; the mercury, thus \*killed\*, can convert the 8 metals into gold. By partaking of this mercury one becomes immortal; even his urine and fæces can convert copper into gold.\* 1-10 - [Previous: v2.c32.s15.5](https://indike.org/pramana/ins.science.ray-1902.v2.c32.s15.5) - [Next: v2.c32.s15.7](https://indike.org/pramana/ins.science.ray-1902.v2.c32.s15.7) - [Up: v2.c32.s15](https://indike.org/pramana/ins.science.ray-1902.v2.c32.s15) --- Source: [https://indike.org/pramana/ins.science.ray-1902.v2.c32.s15.6](https://indike.org/pramana/ins.science.ray-1902.v2.c32.s15.6) · Pramāṇa