States of matter...
Human beings and other animals use ATP (adenosine triphosphate) to provide energy for the body to work. ATP gives energy when it loses an inorganic phosphate (Pi) molecule and becomes ADP (adenosine diphosphate).
ATP = ADP + Pi + Energy!
Human Torch's energy production sites generate a different of energy containing molecule called adenine ribo-heptaphosphene, AR-HP. This molecule provides much higher levels of energy and provides the Human Torch with the energy needed to ‘flame on’.
The flame that Human Torch produces is a low level plasma, the fourth state of matter in which electrons separate from atoms.
The colour he burns depends on the fuel and the temperature. At low temperature it is oxygen and possibly nitrogen that are burning (These produce yellow to red flames). The red/orange colour also suggest he burns between 800–2000 OC, if he burnt at more than 6000 OC he would be blue.
