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lODOL. 435

chloroform, benzene, or toluene in the form of yellow prisms
melted at 192° C. It is unattacked by boiling nitric acid, but
decomposed by alcoholic potash. It is free from the odor of
iodoform.
lODOL—lODOLUM.

Formula.— CJJSiH,.
Derivation.—lodol is obtained by the action of iodine on cer-
tain constituents of animal oil. It is in the form of a grayish-
white powder, which becomes dark on exposure to light.
It is odorless and has little taste, and contains 90 per cent, of
iodine. It is quite soluble in alcohol, ether, chloroform, carbolic
acid, olive oil and alkaline solutions, but insoluble in water;
combination with an equal part of glycerine does not affect its
properties.
Medical Properties and Therapeutic Uses.—lodol is antiseptic,
deodorant and anaesthetic. It is an efficient germicide without
poisonous effects, and is free from the disagreeable odor and taste
of iodoform. Its physiological action and therapeutic uses are
the same as those of iodoform. When applied to an abraded or
wounded surface, it can soon be detected in the urine and saliva;
also the same effects are apparent when it is administered by the
stomach.
Its action is slower than that of iodide of potassium, but
more prolonged, and its elimination is slower. It has a slight
caustic action, but a larger quantity can be used when it is sub-
stituted for iodoform ; no quantity applied to a wound will cause
toxic symptoms.
It is used on wounds, ulcers, etc., in the form of an impalpable
powder, which is dusted on the part. It is also employed in the
form of an ethereal solution, and also in solution with alcohol
and glycerine ; also in the forms of iodol cotton and gauze, pastils,
bougies and ointments. It improves morbid conditions, and can
be advantageously substituted for iodoform. It has been admin-
istered with good results in the treatment of laryngeal tuber-
culosis by insufflation of the powder; and the loss of appetite, so
common as a result of the use of iodoform, does not occur, ulcers