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</html>";s:4:"text";s:12075:"In general, this term may refer to any compound containing perchlorate anion. "Announcement of the Drinking Water Contaminant Candidate List. Calcium perchlorate is classified as a metal perchlorate salt with the molecular formula Ca(ClO 4) 2.It is an inorganic compound that is a yellow-white crystalline solid in appearance. [78], In early 2006, EPA issued a "Cleanup Guidance" and recommended a Drinking Water Equivalent Level (DWEL) for perchlorate of 24.5 µg/L. A federal district court in New York issued a consent decree that initially required EPA to issue a proposed rule in October 2018, and a final rule in December 2019. tetraoxidochlorate(1-) Perchlorate (8CI,9CI) ClO4(-) DTXSID6024252. What is the molecular formula for silver perchlorate? Orris, G. J.; Harvey, G. J.; Tsui, D. T.; Eldridge, J. E. Preliminaryanalyses for perchlorate in selected natural materials and theirderivative products; USGS Open File Report 03-314; USGS, U.S.Government Printing Office: Washington, DC, 2003. 14797-73-0. Perchlorate. The VSEPR predicts a tetrahedral shape. A suppression technique, which suppresses the conductivity of the electrolyte but not the separated ions, can further improve sensitivity. Structural Formula ClO 4- perchlorate ion. regarding perchlorate use. [O-]Cl(=O)(=O)=O
[79], Lacking a federal drinking water standard, several states subsequently published their own standards for perchlorate including Massachusetts in 2006[citation needed] and California in 2007. A practical method for low level perchlorate analysis employs ion chromatography. 76. [68][needs update], In 2006, a study reported a statistical association between environmental levels of perchlorate and changes in thyroid hormones of women with low iodine. CS1 maint: multiple names: authors list (. Ion exchange is a technology used for the treatment of groundwater, surface water, and leachate. 14452-39-2. Chlorat(VII) tetraoxochlorate(1-) tetraoxochlorate(VII) OClO3. The Agency is proposing a Maximum Contaminant Level of 0.056 mg/L for public water systems.[87]. Fact. nov.and Propionivibrio militaris, sp. FDA approved perchlorate use in food packaging in 2005. UNII-MTO74513XK. Aluminium perchlorate. Perchlorate ion(1-) ClO4-Perchlorate ion (ClO41-) Perchlorat. The majority of perchlorates are commercially produced salts. CopyCopied, VLTRZXGMWDSKGL-UHFFFAOYSA-M
Potassium Perchlorate is the potassium salt of perchloric acid and a member of the Hofmeister ions series with thyroid blocking properties. [citation needed]. [69] When the Blount research was re-analyzed with the creatinine adjustment made, the study population limited to women of reproductive age, and results not shown in the original analysis, any remaining association between the results and perchlorate intake disappeared. [76][3], In 2003, a federal district court in California found that the Comprehensive Environmental Response, Compensation and Liability Act applied, because perchlorate is ignitable, and therefore was a "characteristic" hazardous waste. [80][83] The agency found that perchlorate may have an adverse effect on the health of persons and is known to occur in public water systems with a frequency and at levels that it presents a public health concern. Structural Formula. "National Primary Drinking Water Regulations: Perchlorate." "Drinking Water: Regulatory Determination on Perchlorate." Combined with existing perchlorate drinking water contamination, infants could be at risk for perchlorate exposure above the levels considered safe by EPA. CTK0H7695 [ClO4](-) DB03138 [72], Some studies suggest that perchlorate has pulmonary toxic effects as well. ", EPA (2011-02-11). m/z 99→83, primary transition for native perchlorate (quantitation) m/z 101→85, secondary transition for native perchlorate (confirmatory) [70] Soon after the revised Blount Study was released, Robert Utiger, a doctor with the Harvard Institute of Medicine, testified before the US Congress and stated: "I continue to believe that that reference dose, 0.007 milligrams per kilo (24.5 ppb), which includes a factor of 10 to protect those who might be more vulnerable, is quite adequate. What is Perchlorate? The unsuppressed method using a conductivity detector has a lower detectable limit of about 10 ppm. Of particular value is, Potassium perchlorate has, in the past, been used therapeutically to treat, This page was last edited on 11 October 2020, at 02:10. Perchlorate is an anion having the chemical formula ClO 4–. Molecular Model. Lithium perchlorate is chosen over alternative salts such as lithium hexafluorophosphate or lithium tetrafluoroborate when its superior electrical impedance, conductivity, hygroscopicity, and anodic stability properties are of importance to the specific application. Perchlorate is an anion having the chemical formula ClO 4 –. It originates from perchloric acid. d) by dividing this level by the standard intraspecies uncertainty factor of 10. CHEBI:49706. [73], In the early 1960s, potassium perchlorate used to treat Graves disease was implicated in the development of aplastic anemia—a condition where the bone marrow fails to produce new blood cells in sufficient quantity—in thirteen patients, seven of whom died. The perchlorate ion has the formula ClO4 and has a -1 charge. VLA4NZX2P4. [citation needed], In 2008 EPA issued an interim drinking water health advisory for perchlorate and with it a guidance and analysis concerning the impacts on the environment and drinking water. [82] In March 2009, a Centers for Disease Control study found 15 brands of infant formula contaminated with perchlorate. Since then EPA has continued to determine what level of contamination is appropriate. UNII-VLA4NZX2P4. The study authors were careful to point out that hormone levels in all the study subjects remained within normal ranges. Proposed Rule. Perchlorate anion. Perchlorate is a persistent contaminant of concern that has presented a number of issues to the government, the private sector and other organizations and interested parties. Other states, including Arizona, Maryland, Nevada, New Mexico, New York, and Texas have established non-enforceable, advisory levels for perchlorate. A formula for calculation of perchlorate in ppb or µg/L (in the case of milk and bottled water) is provided. In February 2008, the U.S. Food and Drug Administration reported that U.S. toddlers on average are being exposed to more than half of EPA's safe dose from food alone. CopyCopied, Validated by Experts, Validated by Users, Non-Validated, Removed by Users, Predicted data is generated using the ACD/Labs Percepta Platform - PhysChem Module, Predicted data is generated using the US Environmental Protection Agency’s EPISuite, Click to predict properties on the Chemicalize site, For medical information relating to Covid-19, please consult the, ACD/Labs Percepta Platform - PhysChem Module, US Environmental Protection Agency’s EPISuite, Compounds with the same molecular formula, Search Google for structures with same skeleton. "[71], At a 2013 presentation of a previously unpublished study, it was suggested that environmental exposure to perchlorate in pregnant women with hypothyroidism may be associated with significant risk of low IQ in their children. EPA (2019-06-26). On February 11, 2011, EPA determined that perchlorate meets the Safe Drinking Water Act criteria for regulation as a contaminant. It originates from perchloric acid. What is Perchlorate? [77], In 2003, California's legislature enacted AB 826, the Perchlorate Contamination Prevention Act of 2003, requiring California's Department of Toxic Substances Control (DTSC) to adopt regulations specifying best management practices for perchlorate and perchlorate-containing substances. They are mainly used for propellants, exploiting properties as powerful oxidizing agents and to control static electricity in food packaging. Perchlorate ions. A perchlorate is a chemical compound containing the perchlorate ion, ClO 4. InChI=1S/ClHO4/c2-1(3,4)5/h(H,2,3,4,5)/p-1, Except where otherwise noted, data are given for materials in their, In minerals and other natural occurrences, Helmut Vogt, Jan Balej, John E. Bennett, Peter Wintzer, Saeed Akbar Sheikh, Patrizio Gallone "Chlorine Oxides and Chlorine Oxygen Acids" in. The oxidation state of chorine atom in this compound is +7. There are 32 valence electrons available for the Lewis structure for ClO 4-.. Be sure to check the formal charges to make sure that you have correct Lewis structure for ClO 4- PERCHLORATE ION. Wagman, D. D.; Evans, W. H.; Parker, V. P.; Schumm, R. H.; Halow, I.; Bailey, S. M.; Churney, K. L.; Nuttall, R. L. Ericksen, G. E. "Geology and origin of the Chilean nitrate deposits"; U.S. Geological Survey Prof. Paper 1188; USGS: Reston, VA, 1981, 37 pp. Of about 10 ppm July 1, 2006 water: Regulatory Determination on.. In what is perchlorate addressing perchlorate contamination at Cleanup sites or in Drinking water Act criteria for as. 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Inflammatory infiltrates, alveolar collapse, subpleural thickening, and lymphocyte proliferation the levels safe. Kathleen Sellers, Katherine Weeks, William R. Alsop, Stephen R. Clough Marilyn!";s:7:"keyword";s:23:"perchlorate ion formula";s:5:"links";s:1291:"<a href="http://sljco.coding.al/o23k1sc/prodesk-electric-height-adjustable-standing-desk-566a7f">Prodesk Electric Height Adjustable Standing Desk</a>,
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