11. Aqua regia was also used for parting.12. Aqua regia acid process is used by refiners of scrap gold used in jewelry manufacturing.13. They dissolved platinum ore from the Ural mountains in aqua regia and sifted through the residue. 14. Who knows, why aqua regia is 1 : 3 mixture of nitric and hydrochlorous acid? 15. Methods include electrolysis, wet chemical chlorination ( aqua regia ), and wet chemical parting. 16. Aqua regia , a 1 : 3 mixture of nitric acid and hydrochloric acid, dissolves gold.17. They examined residues that were left after dissolving crude platinum from the Ural Mountains in aqua regia . 18. He is one of the first to describe nitric acid, aqua regia , and aqua fortis. 19. This could then be repeated by dissolving in aqua regia again to achieve a 1000 1 concentration. 20. Therefore, in addition to nitrosyl chloride and chlorine, the fumes over aqua regia contain nitric oxide.
