Margarit, ICP, Mattos, OR, "Electrochemical Characterization of Chromate
Coatings on Galvanized Steel." Electrochim.
METHODS: BALB/c mice were repetitively treated with particulate basic zinc chromate
or saline using an intranasal exposure regimen.
Major studies pinpointing Cr(VI) as a human lung carcinogen have been performed on workers involved in chromate
pigment production and chromium plating.
Inorganic yellow pigments based on bismuth provide heat stability requisite for engineering thermoplastics to replace lead chromates
. Polymer-soluble dyes for use in polyester, PS and acrylic.
In the soil environment chromium is a transition metal capable of existing in two oxidation states: (i) the chromic species (Cr3+), and (ii) the chromate
During 1983, 24 industries used lead chromate
(National Occupational Exposure Survey of CDC's National Institute for Occupational Safety and Health [NIOSH], unpublished data, 1991); during May 1991, 30,600 U.S.
Myers, Industrial Studies Branch, ESD, says the reason EPA gives one date where vendors cannot sell chromate
chemicals and another where building owners can't use the chemical in their cooling towers is to make the transition a smooth one.
His aim was to research alternatives to the recently banned carcinogenic inhibitor, hexavalent chromate
, which was made famous by Erin Brockovich in the 1990s.
There is a news report in this issue which says that the global trivalent chromate
finishing market is expected to grow as health and safety issues begin to take hold across the world.
They are used for the formulation of paints and coatings as an inorganic alternative to pigments containing lead chromate
For long life in harsh environments, corrosion resistant parts and a gold chromate
load chain are included.