Thermal Safety

What is the definition of autocatalysis?

Why is it dangerous?

What are the four properties of the autoctalytic reaction?

Draw the typical isotherm DSC's for a reaction of n-th order and autocatalytic reactions respectively.

Draw the heat balance diagram for the n-th order reaction and the autocatalytic reactions

Name 3 mechanisms describing autocatalytic processes.

Explain the Prout-Tomkins model including all the formulas.

What are 2 cons of this model?

Explain the Perez-Benito model with all the formulas

Explain the Berlin model for autocatalysis.

Perez-Benito: Depict the grade of autocatalysis with the help of k1/k2 (thermograms)

Berlin model: describe graphically the effects of autocatalysis factors of various magnitudes on the form of the signals in thermograms (dynamic and isotherm DSC's and heat balance diagram)

Practical aspects for the characterization of autocatalytic processes (3 points). What is the only reliable way for detecting the autocatalytic processes.

Explain shortly the characterization of the autocatalytic processes with the dynamic DSC.

What are the rules of thum that are derived from this method?

What are the cons of this method?

Characterization of autocatalytic processes: Step 1

Characterization of autocatalytic processes: Step 2

Characterization of autocatalytic processes: Step 3

Characterization of autocatalytic processes: Step 4

What are three specific aspects of autocatalysis?

Also, provide an example of the effect of contamination on decomposition time of a sample (adiabatic temperature diagram)