NON-METALLIC ELEMENTS.

135

becomes almost all white. Allow the inso-luble matter to subside before using the li-quid.

lODINEUM«

Iodine, as obtained in commerce, being al-most always adulterated with variable pro-portions of water, and being consequentlyunfit for making pharmaceutic preparationsof fixed and uniform strength, it must bedried by being placed in a shallow basin ofearthen-ware in a small confined space ofair with ten or twelve times its weight offresh-burnt lime, tili it scarcely adheres tothe inside of a dry bottle.

IODINEI LIQUOR COMPOSITUS.

Take of Iodine, two drachms ;

Iodide of potassium, an ounce ;

Distillcd water, sixteen fluidounces;Dissolve the iodide and iodine in the waterwith gentle heat and agitation.

SüLPHUR SUBLIMATUM.

Sublime sulphur in a proper vessel; washthe powder thus obtained with boiling waterin successive portions tili the water ceases tohave an acid taste ; then dry the sulphurwith a gentle heat.