[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) › c20.1 # History of Chemistry in Ancient and Medieval India, Incorporating the History of Hindu Chemistry by Acharya Prafulla Chandra Ray c20.1 History of Chemistry in Ancient and Medieval India, Incorporating the History of Hindu Chemistry by Acharya Prafulla Chandra Ray c20.1 - **Language:** English ### [c20.1](https://indike.org/pramana/ins.science.ray-1956.c20.1) Quicksilver digested with sour gruel and then subjected to distillation is freed from the impurities of lead and tin. 1 - [Previous: c19.21](https://indike.org/pramana/ins.science.ray-1956.c19.21) - [Next: c20.2](https://indike.org/pramana/ins.science.ray-1956.c20.2) - [Up: c20](https://indike.org/pramana/ins.science.ray-1956.c20) --- Source: [https://indike.org/pramana/ins.science.ray-1956.c20.1](https://indike.org/pramana/ins.science.ray-1956.c20.1) · Pramāṇa