[Pramāṇa](https://indike.org/pramana/) › [Studies](https://indike.org/pramana/ins) › [Science, technology and education](https://indike.org/pramana/ins.science) › [History of Chemistry in Ancient and Medieval India, Incorporating the History of Hindu Chemistry by Acharya Prafulla Chandra Ray](https://indike.org/pramana/ins.science.ray-1956) › c20.s1 # History of Chemistry in Ancient and Medieval India, Incorporating the History of Hindu Chemistry by Acharya Prafulla Chandra Ray c20.s1: Patala Vii History of Chemistry in Ancient and Medieval India, Incorporating the History of Hindu Chemistry by Acharya Prafulla Chandra Ray c20.s1 - **Language:** English ### Patala Vii ### [c20.s1.1](https://indike.org/pramana/ins.science.ray-1956.c20.s1.1) Ingredients for making a \*vida\* for killing metals are given here, which are very similar to those described in Rasarnava IX. 2-3 (q.v., p. 139). ### [c20.s1.2](https://indike.org/pramana/ins.science.ray-1956.c20.s1.2) The preparation of mild alkali from the ashes of plants is described in the following verses. The process given is rather a poor one, compared to the elaborate description in the Susruta (q.v., p. 63). ## Cites (2) - [Rasārṇava](https://indike.org/pramana/in.med.rasa.siddha.rasarnava.9.2) — Sanskrit - [Suśrutasaṃhitā](https://indike.org/pramana/in.med.samhita.susruta-school.susruta) — Suśruta & Nāgārjuna (siddha/alchemist), Sanskrit --- Source: [https://indike.org/pramana/ins.science.ray-1956.c20.s1](https://indike.org/pramana/ins.science.ray-1956.c20.s1) · Pramāṇa