Corrosive;
highly exothermic reaction with water.
Burns
from sulfuric acid are potentially
more serious than those of comparable strong acids (e.g. hydrochloric acid), as there is
additional tissue damagedue
to dehydration and particularly due to the heat liberated by the
reaction with water;
i.e. secondary thermal damage.
The danger is
greater
with more concentrated
preparations of sulfuric acid; however, even the "dilute" ~ 0.1 M H2SO4will
char
paper by
dehydration if left in contact
for a sufficient while.