April 2020
Intermediate to advanced
296 pages
5h 20m
English

Though I sublimes from crystals dark to noxious purple haze,
In hormones of the thyroid gland a vital role it plays!
On starch behold its dark blue stain,
In clouds its silver salt seeds rain.
Its tinctures (made from kelp of old) clean’d septic cut and graze.
eye
THE FOURTH MEMBER OF THE GROUP 17 HALOGENS
Iodine exists as a shiny, black, non-metallic solid composed of I2 molecules weakly held in an orderly crystalline lattice. This lattice readily breaks down when even mildly heated, releasing the individual I2 molecules into the gas phase via a process ...