chromate

(17.) Williams, G, McMurray, HN, "Chromate Inhibition of Corrosion-Driven Organic Coating Delamination Studied Using a Scanning Kelvin Probe Technique." J.

OBJECTIVES: In this study we investigated the lung injury, inflammation, proliferation, and survival signaling responses after repetitive exposure to particulate chromate.

Key words Chromate--chromium--chromosome instability--epigenetic changes--genomic instability--hexavalent chromium--lead chromate--mutations--zinc chromate

According to local residents the chromate was extracted by local for many years and was exported to Pakistan and then sent to China.

Color pigments include high-value Synergy pigments designed to reduce costs for formulators of industrial coatings; Meteor and Meteor Plus complex inorganic pigments for applications requiring heat resistance and exterior durability; Engeltone organic pigments in a wide spectrum of colors; Engeltone low-soluble cadmium pigments for uses requiring good heat and light stability; and Engeltone lead chromate and moly orange pigments for cost-effective coloring.

THE EUROPEAN Commission is staging a public consultation on a bid to scrap an oncoming ban on using hexavalent chromium in chromate conversion coatings as a surface treatment in the electronics industry.

Inorganic pigment demand will post below average gains through 2009, primarily due to the continued phase out of heavy metal types (e.g., chromate).

All units are phosphate washed, caulked with polyurethane sealant to prevent rust in seams, and painted with an epoxy primer using an acrylic enamel paint that is lead and chromate free.

Most of be emphasis is centered on the traditional metal oxides, such as chromate or permanganate salts, in spite of the hazards and waste management concerns associate with them.

The chromate species is of particular concern because of its appreciable migratory potential and the resultant threat to groundwater supplies.

All SAE pump plates now have a yellow zinc chromate coating to resist corrosion.

Personal-breathing-zone exposure samples documented that employees had substantial airborne exposure to lead, chromium (as lead chromate), and cadmium components of the various pigments used in the process.

Although chromate compounds have historically provided the best protection (at a reasonable cost) against the corrosive effects of recirculating cooling water in an HVAC system's heat exchanger or in refrigeration equipment, the form used is considered, by the EPA, to be a potent carcinogen, presenting both an unreasonable risk to human health and a detrimental impact to the environment.

Last month, the EU banned its most effective inhibitor, hexavalent chromate, because of health concerns.