The chromate (III) ion which is used in the tanning of leather has been identified in 95 percent of leather footwear products, at concentrations ranging from 0.3 to 3 percent, with a median ...

Chromium (Cr) species can occur in a number of oxidation states, but – Cr(III) and Cr(VI) – the trivalent and hexavalent oxidation states are the most common in the environment.

Research raises concerns over long-term use of chromium diet pills Date: January 11, 2016 Source: University of Sydney Summary: Chromium is partially converted into a carcinogenic form when it ...

Chromium VI is considered a carcinogen, and chronic, prolonged inhalation and skin exposure is associated with chronic lung disease and ulceration of skin and mucous membranes, the CDC notes.