hexavalent


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hexavalent

 [hek″sah-va´lent]
having a valence of six.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

hexavalent

(hĕks″ă-vā′lĕnt) [″ + L. valere, to have power]
Having a chemical valence of six.
Medical Dictionary, © 2009 Farlex and Partners
References in periodicals archive ?
Corrosion costs the world economy $2.5 trillion every year, and last month the EU banned its most effective inhibitor - hexavalent chromate - because of health concerns.
Hexavalent chromium reduction was examined under microaerophilic (static) condition in 100 mL LB broth amended with suitable concentration of Cr(VI) (3mM- inoculum size) and inoculated with appropriate cells of bacterial suspension (10% inoculum-chromate concentration experiment), incubated at 35[degrees]C.
According to Dr Rajesh Jain, joint MD of PBL, millions of children in developing countries will get an easy access to a fully liquid Hexavalent vaccine containing six very important antigens to protect against six dreaded diseases: Diphtheria, Tetanus, Pertussis, Hepatitis B, Haemophilus influenza type B & Polio.
Determination of hexavalent chromium reduction potential: Chromate reducing potential was determined in LB broth containing 100, 350 and 500ug/mL of K2CrO4 respectively incubated 150rpm and 37AdegC for 120 hours.
Long-term exposure of male and female mice to trivalent and hexavalent chromium compounds: effect on fertility.
Most of the previous studies on hexavalent chromium focused on its carcinogenic effects, and various kinds of cell lines related to the respiratory system were used in in vitro studies.
Westre shares, "I am excited for the opportunity to be part of the vision that the Meilings and CHEMEON have set forth in the replacement of hexavalent chrome and other toxic chemical compounds.
USING SPOTTED SALAMANDER EMBRYOS AS MODELS FOR ASSESSING ENVIRONMENTAL TOXICITY OF HEXAVALENT CHROMIUM.
Chromium ion in liquid tanning wastes occurs mainly in trivalent form, which gets further oxidized to hexavalent form [2, 3].
Called Evolve, the new process is an acid-based solution that allows etching of plastics without chromium trioxide, permanganate, or PFOS (perfuorooctane sulfonate)--a substance that has been used as a mist suppressant in hexavalent chrome processes and which is being banned in the European Union as a toxic "substance of very high concern" (SVHC).
The process comprises separating chromium from the sludge by selectively oxidizing the trivalent chromium precipitate to soluble hexavalent chromium with chlorine gas in alkaline medium.
After nearly a decade of false starts, questions and legal action, California state has issued a final drinking standard for hexavalent chromium, which will take effect July 2014.