There is a growing acceptance that industry will adopt trivalent chromium as an intermediate solution to the replacement of hexavalent chromium. |
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The rare earth elements comprise a group of 17 trivalent metallic elements with similar chemical properties. |
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So far, however, most of the alternatives to hexavalent chromium-based passivations are trivalent chromium based. |
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I mentioned yesterday that analogous difference between chromium and chromate, the chromate is much more toxic than the trivalent chromium. |
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The complications arising from quadrivalent or trivalent plus univalent formation are not considered in this article. |
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The uptake of trivalent chromium with food tends to be too low rather than too high. |
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Scientists believe that the single strain will be more efficient than a trivalent vaccine in stopping the virus. |
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More than six million people were vaccinated with meningococcal polysaccharide bivalent or trivalent vaccines. |
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In the evaluation of the toxicity of chromium, a distinction must be drawn between trivalent and hexavalent chromium compounds. |
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Polluted and depleted process baths: anodising, neutralisation with bisulphite, chromium baths polluted with heavy metals and trivalent chromium. |
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Administration of trivalent licensed antitoxin or heptavalent botulinum may prevent or decrease a patient's progression to respiratory failure and hasten recovery. |
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For welding purposes, hexavalent chromium can be reduced to trivalent chromium by adding zinc to the welding alloys. |
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The precipitation of trivalent chromium is normally carried out after all of the waste waters with the heavy metal content have been collected together. |
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As an alternative solution with respect to the existing bibliography the use of trivalent chromium instead of hexavalent is being considered since the former is considerably less toxic than the latter. |
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Cattle in this area occasionally mix with African buffalo and are routinely vaccinated with a trivalent FMD SAT 1, 2 and 3 vaccine three times a year. |
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Chromium oxide green pigments contain only trivalent chrome. |
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The efficacy of live attenuated, cold-adapted, trivalent, intranasal influenzavirus vaccine in children. |
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The problem caused by the use of a trivalent form, instead of a hexavalent one, is that certain dark deposits appear on the surface of the part after the bath, and the required quality of the product is not achieved. |
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The product contains the amino acid EDTA, a chelating agent that binds divalent and trivalent metal ions, which are then excreted in the urine. |
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Hexavalent chromium is more toxicologically active than trivalent chromium. |
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Treatment of French fries with sodium pyrophosphate and treatment of potato products with di-and trivalent cations e.g. calcium salts before processing can contribute to the reduction of acrylamide. |
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The infected herds are in FMD control zone 1, an FMD vaccinated area, where cattle were revaccinated with a trivalent SAT 1, SAT 2 and SAT 3 FMD vaccine. |
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Tetrahedral substitution of aluminum for silicon is common and provides charge balance for trivalent and univalent substitution in the metal sites. |
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There seems to be a homeostatic mechanism involving hepatic or intestinal transport systems that prevents excessive accumulation of trivalent chromium. |
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Methylation of this trivalent form of arsenic is then believed to result from the oxidative addition of a methyl group from S-adenosylmethionine by a methyl transferase. |
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It's called the monovalent polio vaccine and rather than targeting the three strains of the virus that the previous trivalent vaccine targeted, it just targets the one that is most commonly left in the endemic countries. |
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When the metal coating is punctured or scratched, the capsules in the damaged area burst and ooze restorative liquids, in the form of compounds called trivalent chromates. |
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The M atoms, which are smaller than the R atoms and generally trivalent, are in the centre of the unit cell, and oxygen atoms occupy the centres of the six faces. |
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Two iron ions are trivalent, while one is divalent. |
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Many mammals methylate trivalent inorganic arsenic in liver to species that are released into the bloodstream and excreted in urine and feces. |
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Difference in uptake and toxicity of trivalent and pentavalent inorganic arsenic in rate heart microvessel endothelial cells. |
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Synergistic solvent extraction of trivalent lanthanoids with mixtures of 1-phenyl-3-methyl-4-pivaloyl-5-pyrazolone and crown ethers. |
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Fluad is a trivalent, inactivated influenza vaccine that contains MF59 adjuvant, an oil-in-water emulsion containing squalene, polysorbate 80, and sorbitan trioleate. |
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On the basis of the features illustrated in and, there are two trivalent verbs in Maltese that display very different characteristics from all other verbs of similar valency. |
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At a meeting in June, the committee voted 13-0 to recommend the vaccine, a trivalent recombinant hemagglutinin vaccine marketed as FluBlok, for this population. |
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Pentavalent antimonials are safer than trivalent ones, but their adverse effects, such as life-threatening electro cardiographic changes are frequent. |
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Trivalent dimethylated arsenic, which can be produced by the metabolic reduction of DMA, has attracted considerable attention from the standpoint of arsenic carcinogenesis. |
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