[Pramāṇa](https://indike.org/pramana/) › [Studies](https://indike.org/pramana/ins) › [Science, technology and education](https://indike.org/pramana/ins.science) › [The Materia Medica of the Hindus, compiled from Sanskrit Medical Works](https://indike.org/pramana/ins.science.dutt-1877) › c4.s6.12 # The Materia Medica of the Hindus, compiled from Sanskrit Medical Works c4.s6.12 The Materia Medica of the Hindus, compiled from Sanskrit Medical Works c4.s6.12 - **Language:** English ### [c4.s6.12](https://indike.org/pramana/ins.science.dutt-1877.c4.s6.12) 2. \*Rasakarpura\*. The white preparation is the \*Rasakarpura\* or perchloride of mercury. Several processes are given for preparing it; one is as follows.² Take of mercury and chalk equal parts, and rub them together till the globules disappear. Rub this mixture of chalk and mercury with \*pánsu\* (salt obtained from saline earth) and the juice of \*Euphorbia nereifolia\* (\*snuhi\*) repeatedly. Enclose in a covered crucible and heat it within a pot full of rock salt. The perchloride of mercury will be deposited in the shape of a pure white powder under the lid of the crucible. The \*Bhāvaprakāsa\* gives the following process for its preparation.³ Take of purified - [Previous: c4.s6.11](https://indike.org/pramana/ins.science.dutt-1877.c4.s6.11) - [Next: c4.s6.13](https://indike.org/pramana/ins.science.dutt-1877.c4.s6.13) - [Up: c4.s6](https://indike.org/pramana/ins.science.dutt-1877.c4.s6) ## Linked texts (1) - [Bhāvaprakāśa](https://indike.org/pramana/in.med.sangraha.bhavaprakasa) — Bhāvamiśra 1550, Sanskrit --- Source: [https://indike.org/pramana/ins.science.dutt-1877.c4.s6.12](https://indike.org/pramana/ins.science.dutt-1877.c4.s6.12) · Pramāṇa