Nitric acid AsO, SbO, and TiO respectively. Some precious metals, such as pure gold and platinum-group metals do not react with nitric acid, though pure gold does react with "aqua regia", a mixture of concentrated nitric acid and hydrochloric acid. However, some less noble metals (Ag, Cu, ...) present in some gold alloys relatively poor in gold such as colored gold can be easily oxidized and dissolved by nitric acid, leading to colour changes of the gold-alloy surface. Nitric acid is used as a cheap means in jewelry shops to quickly spot low-gold alloys (< 14 carats) and to rapidly assess the
The Electric Kool-Aid Acid Test a--Wolfe’s a genius. He did a lot of that stuff, he was only around three weeks. He picked up that amount of dialogue and verisimilitude without tape recorder, without taking notes to any extent. He just watches very carefully and remembers. But, you know, he’s got his own editorial filter there. And so what he’s coming up with is part of me, but it’s not all of me. . . .” The Electric Kool-Aid Acid Test The Electric Kool-Aid Acid Test is a nonfiction book by Tom Wolfe that was published in 1968. The book is remembered today as an