Nitric acid (HNO) greatly enhance the rate of reaction. Although chromium (Cr), iron (Fe), and aluminium (Al) readily dissolve in dilute nitric acid, the concentrated acid forms a metal-oxide layer that protects the bulk of the metal from further oxidation. The formation of this protective layer is called passivation. Typical passivation concentrations range from 20% to 50% by volume (see ASTM A967-05). Metals that are passivated by concentrated nitric acid are iron, cobalt, chromium, nickel, and aluminium. Being a powerful oxidizing acid, nitric acid reacts violently with many organic materials and the reactions may be explosive. The hydroxyl group will typically strip
The Electric Kool-Aid Acid Test Kesey is conditionally released as he convinces the judge that the next step of his movement is an "Acid Test Graduation", an event in which the Pranksters and other followers will attempt to achieve intersubjectivity without the use of mind-altering drugs. The graduation was not effective enough to clear the charges from Kesey's name. He is given two sentences for two separate offenses. He is designated to a work camp to fulfill his sentence. He moves his wife and children to Oregon and begins serving his time in the forests of California. "The Electric Kool-Aid Acid Test" is remembered as