HEAT & THERMODYNAMICS INSTRUMENTATION A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z                    HOME ABOUT CATEGORIES SITE MAP COPYRIGHT ADVERTISE CONTACT entire Web this site Beckmann thermometer A German-made Beckmann thermometer (c.1940) in the collection of the Robert A. Paselk Scientific Instrument Museum at Humboldt State University. It is 57.5 cm in overall length, and graduated from -0.1 to 6.1°C by 1/100°C on the main scale, and from -9 to 144°C by single degrees on the upper "setting" scale. Also known as the Beckmann differential thermometer, a mercury-in-glass thermometer used in calorimetry which offers an accuracy of up to ±0.001K but which has a range of only 5K. This is achieved through its having a large bulb and fine bore. It was devised by the German organic chemist Ernst Otto Beckmann (1853-1923), who is also remembered for his discovery (1886) of the Beckmann rearrangement of ketoximes (see oximes) into amides under acid catalysis. Related categories    • HEAT AND THERMODYNAMICS    • INSTRUMENTATION Also on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History Transport Concepts & Designs (partner site) BACK TO TOP