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Dewar calorimetry

Adiabatic calorimetry performed in a Dewar flask.


  • Grewer, Th. Dewar test method for exothermic reactions, Conference on techniques for assessment of chemical reaction hazards, December 1990, Amsterdam.
  • Whight, T. A. and Rogers, R. L. Adiabatic Dewar Calorimetry presented at Hazards from Pressure Symposium at UMIST, IChemE symposium series 97, Rugby (England) 1986, pp.121-132.


A Dewar flask (also called Dewar Vessel, or Thermos Flask) is a vessel with double walls, the space between which is evacuated. It was invented by the British chemist and physicist Sir James Dewar in the 1890s. Thermos is a proprietary name applied to a form protected by a metal casing.



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