chromium compounds การใช้

• Sodium chromate, like other hexavalent chromium compounds, is toxic and carcinogenic.
• Major pollutants included sulfuric acid, chromium compounds, lead compounds, and chlorine.
• Major pollutants included nickel compounds, chromium compounds, sulfuric acid, and hydrochloric acid.
• Chromium compounds also catalyse the trimerization of ethylene to produce the monomer 1-hexene.
• Hexavalent chromium compounds are genotoxic carcinogens.
• The chromium compound has been linked to lung cancer from inhalation of particles, according to researchers.
• The chromium compound is however prone to homolysis of the Cr-Cr bond owing to steric crowding.
• In 2010, a study was conducted on four hexavalent chromium compounds to test the carcinogenic effects of chromium.
• Some rhenium, molybdenum and chromium compounds contain a quadruple bond, consisting of one ? bonds and one ? bond.
• The leather industry in Kanpur which employs around 50, 000 people in more than 400 tanneries uses chemicals such as toxic chromium compounds.
• The court denied equivalent infringement of EP0918791B3, since paragraph 19 of EP0918791B3 explicitly teaches that toxic chromium compounds may be replaced by metallic catalysts.
• But the researchers who did the study maintain that the doses used were realistic because cells can accumulate this chromium compound and hang onto it for many years.
• A byproduct of chrome plating, stainless steel work and painting, the chromium compound can also trigger asthma attacks and allergic skin reactions, the study said.
• The chromium compounds were eventually synthesized by his co-worker Anthony Nicholl Rail only a month before Nyholm s death, using rigorous air-free techniques.
• When exposed to reasonable doses of chromium picolinate, the cells suffered chromosomal damage that ranged from threefold to eighteenfold the amount that occurred in cells exposed to other chromium compounds.
• G . Heller Enterprises, of Edgewater capped a site on Route 440 in Jersey City that contained toxic chromium compounds in order to make it suitable as the location for a Home Depot store.
• Chromium exhibits a wide range of oxidation states, with + 3 the most stable; the + 3 and + 6 states are the most common in chromium compounds, while + 1, + 4 and + 5 are rare.
• In 2008, the company released more than one million kg ( 2.2 million pounds ) of toxins, chiefly ammonia, hydrochloric acid, ethylene, zinc compounds, methanol, and benzene, but including manganese, cyanide, and chromium compounds.
• The range of the oblast's export commodities includes : oil and oil products, gas and gas produced products, rolled ferrous and non-ferrous metals, nickel, asbestos, chromium compounds, rough copper, electric engines, radiators, products of machine-building industry.
• The chromium compound, which is created as a byproduct during chrome plating, stainless-steel manufacturing and paint production has been linked to " lung cancer from inhalation of particles, " said Dr . Natalia Freeman, an assistant professor at the Robert Wood Johnson Medical School at Piscataway, N . J ., whose research specialty is chromium.