A symbol which gives the warning regarding type of hazard (danger) when an explosion takes place and it also suggests the remedial action to be taken in case of hazard occurs
it is able to dissolve or eat away at other substances such as metal , skin or bones.
The Toxic Symbol means that the liquid is very toxic and may bed rid you for months or kill you.
The oxidizing hazard symbol means the substance has the ability to react with oxygen, usually dangerously.
Thermal means heat and hazardous means dangerous so it means caution hot
It means "Irritant/Harmful".