Phi-TEC I/Adiabatic Reaction Calorimeter (based on
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Overview

Adiabatic Reaction Calorimeter - Phi-TEC I

Overview

The Phi-TEC I is an adiabatic calorimeter that can be used to determine the heat evolved and pressure developed during an uncontrolled exothermic runaway reaction. It is the modern alternative to the classic "ARC" developed by Dow Chemicals.

The system is completely computer controlled and features a range of high-pressure test cells, magnetic stirring and pressure and temperature logging. Standard Pre-programmed Tests make runs quick and efficient and simple standard test cells keep consumable costs to a minimum.

Testing

The system employs two standard test types...

  • Rapid Screening...

...For the preliminary screening of chemicals, with a view to assesing their thermal stability. The sample is ramped until an exotherm is induced - analogous to a DSC test, but with the added feature of a pressure trace, which can highlight hazardous gas evolutions - potentially these can occur without an exotherm and can be undetectable without a pressure trace.

  • Heat - Wait - Search...

...is the classical "ARC" test developed by Dow and widely used for decades. The sample is heated stepwise with pauses in between heatings to "search" for an exotherm within the sensitivity of the device. Once an exotherm is detected, adiabatic tracking commences.