- Dimensions and shape of the material -
solid or powder.
- Ambient airflow over the material.
- Availability of oxygen within the bulk, or
- Additives or contaminants.
What Causes Exothermic Heating?
The exothermic onset temperature for self-heating is influenced by the chemical and physical properties such as chemical-reaction kinetics, thermal conductivity and heat of reaction, as well as by other factors, including: