aqua regia in a sentence

1. jöns berzelius and gottfried osann nearly discovered ruthenium in 1827.[38] they examined residues that were left after dissolving crude platinum from the ural mountains in aqua regia.

2. In particular, commonly known as the plastic king of polytetrafluoroethylene (F4), its chemical stability even better than gold, on the "aqua regia" cook for a dozen hours will not deteriorate.

3. the reason aqua regia can dissolve gold(and metals like platinum and palladium) is that each of its two component acids(i.e., hydrochloric acid and nitric acid) carries out a different function.

4. dia0.25 tantalum wire tantalum is also very good chemical properties, with high corrosion resistance, both in cold and hot conditions, hydrochloric acid, concentrated nitric acid and"aqua regia" are not reactive. however, tantalum can be corroded.

5. characterizing excellent corrosion resistance, high temperature strength and outstanding physical mechanical performance, tantalum crucible is suitable for reboiling, preheating and condensing of nitric acid combinations with any other chemicals like aqua regia.