[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) › c30.s3.8 # History of Chemistry in Ancient and Medieval India, Incorporating the History of Hindu Chemistry by Acharya Prafulla Chandra Ray c30.s3.8 History of Chemistry in Ancient and Medieval India, Incorporating the History of Hindu Chemistry by Acharya Prafulla Chandra Ray c30.s3.8 - **Language:** English ### [c30.s3.8](https://indike.org/pramana/ins.science.ray-1956.c30.s3.8) Brass, smeared with a paste of lemon-juice, orpiment and sulphur and roasted eight times, is reduced to ashes. The process of killing brass is the same as that of copper. 201-202 - [Previous: c30.s3.7](https://indike.org/pramana/ins.science.ray-1956.c30.s3.7) - [Next: c30.s3.9](https://indike.org/pramana/ins.science.ray-1956.c30.s3.9) - [Up: c30.s3](https://indike.org/pramana/ins.science.ray-1956.c30.s3) --- Source: [https://indike.org/pramana/ins.science.ray-1956.c30.s3.8](https://indike.org/pramana/ins.science.ray-1956.c30.s3.8) · Pramāṇa