Calomel has very little toxic action. Metallic mercury is not poisonous,
but its vapour is.
=Corrosive Sublimate= (perchloride of mercury) is in heavy colourless
masses of prismatic crystals, possessing an acrid, metallic taste. It is
soluble in sixteen parts of cold and two of boiling water. Soluble in
alcohol and ether, the latter also separating it from its solution in
water.
_Symptoms_ come on rapidly. Acrid, metallic taste, constriction and
burning in throat and stomach, nausea, vomiting of stringy mucus tinged
with blood, tenesmus, purging. Feeble, quick, and irregular pulse,
dysuria with scanty, albuminous or bloody urine or total suppression.
Cramp, twitches and convulsions of limbs, occasionally paralysis. In
poisoning from the medicinal use of mercury, there may be salivation, a
coppery taste in the mouth, peculiar foetor of breath, tenderness and
swelling of mouth, inflammation, swelling and ulceration of gums
(cancrum oris), a blue line on the gums, and the loosening of teeth.
Mercury is less quickly eliminated from the body than arsenic. In
chronic cases 'mercurialism,' 'hydrargyrism,' 'ptyalism,' or
'salivation,' including most of the symptoms enumerated above.
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