saltpetres meaning in Hindi

Examples

1. Historic activities are a major part of the Saltpetre Cave tour.
2. It also has saltpetre, gunpowder, and lead-smelting works.
3. At the same time mining activity in Chile reoriented to saltpetre operations.
4. This was used to bring in sulphur and saltpetre, the other ingredients.
5. For the preparation of saltpetre, Song Yingxing wrote:
6. The reaction was between melted saltpetre and acetic acid which produced a red vapor.
7. At the same time their saltpetre trade was disrupted by another rival British company.
8. Old recipes use saltpetre which is not recommended.
9. This resulted in an improved method of extracting saltpetre and consequently higher quality gunpowder.
10. Also near Ashurst are the earthwork remains of a 16th-century saltpetre house.