Product Description

Red mercury.


Red Pure Mercuryis a *9th-century term for protiodide or iodide of mercury. It was commonly recommended for use as an antisyphilitic as late as ***3, most notably during the early years of the Tuskegee syphilis experiment. Taken orally, it caused hematemesis. Today, it continues to be used in some countries for skin lightening, causing some cases of nephrotic syndrome.
Red mercuric iodide is a poisonous, odorless, tasteless, water-insoluble scarlet-red powder that becomes yellow when heated above **6 °C, due to a thermochromatic change in crystalline structure.