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Determination of heat production using isothermal calorimetry

The microcalorimeter can be used to study heat released or consumed by any slow reaction under constant conditions. The method can after only hours or days detect degradation of a material, something that otherwise would have taken months or even longer to identify.

Channels in the microcalorimeter

Using the two microcalorimeters at RISE, experiments can be desgined so that the effect of temperature, moist or oxygen can be studied. It is also possible to analyse the gases in the sample ampoule, something that often adds further knowledge.

The fields of application are many and new areas are still established. Our major experience is in the field of self-heating. The microcalorimeter is used to investigate heat production in a material. The result can be used to determine kinetic parameters and to investigate the risk of self-heating and fire in a storage.

RISE has two microcalorimeters; TAM Air and TAM III. The amount of sample needed is often a few grams and needs to fit in a 20 och 125 ml ampoule. The method produces time resolved results. Except from the readings, RISE also offers the possibility to understand and make conclusions based on the results.

More information

Fields of application:

  • Biodegradability
  • Aging of e.g. food or polymers
  • Investigation of food additives
  • Self-heating and lagging fires
  • Stability tests
  • Decomposition and autocatalysis
  • Slow reactions such as curing

Parameters:

  • Temperature: 0-150 °C
  • O2-conc.: 0-21 vol-%
  • Moisture

Contact person

Mohit Pushp

Projektledare

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