The Ostwald process, patented by Wilhelm Ostwald in 1902, is a method for industrial production of nitric acid from the oxidation of ammonia. It replaced the distillation of saltpeter, which was the only method before. The process enabled the economic production of nitric acid, leading to increased agricultural productivity and prolonged World War I. The […]
An Ostwald viscometer measures fluid viscosity by noting the time it takes for fluid to flow a certain distance through a U-shaped tube. Other types of viscometers include falling ball, piston, vibrational, rotary, and bubble viscometers. An Ostwald viscometer, also known as a viscometer, is a device used to measure the viscosity of fluid under […]
