CAS Number 7782-49-2 Synonym. It is also commonly found in rocks and soil. DESCRIPTION Selenium Injection is a sterile, nonpyrogenic solution for use as an additive to solutions for Total Parenteral Nutrition (TPN). Dates: Modify . Estimated Crustal Abundance: 5×10-2 milligrams per kilogram. Introduction. Estimated Oceanic Abundance: 2×10-4 milligrams per liter. 4.2 PHYSICAL AND CHEMICAL PROPERTIES Selenium is a non-metal element with atomic number 34 and an atomic mass of 78.96 (Lide 2000). Methane (CH 4) - Methane consists of carbon bonded to 4 hydrogen atoms and 0 lone pairs.Steric number = 4. Cotton, G. Wilkinson, C.A. InChI=1S/Cl2Se/c1-3-2 Selenium tetrachloride Synonym: Selenium (Ⅳ) chloride CAS Number 10026-03-6. NACRES NA.23 Its chemical formula is Se 2 Cl 2. CopyCopied, SWAKCLHCWHYEOW-UHFFFAOYSA-N Strem Chemicals, Inc. 7 Mulliken Way Newburyport, MA 01950-4098 USA Tel: (978) 499 1600 Fax: (978) 465 3104 Toll free (in USA & Canada) Tel: (800) 647 8736 Selenium in Serum NHANES 2003–2004 Page 3 of 21 Public Release Data Set Information This document details the Lab Protocol for NHANES 2003-2004 data. CAS Registry Number: 14457-70-6; Chemical structure: This structure is also available as a 2d Mol file or as a computed 3d SD file The 3d structure may be viewed using Java or Javascript. The following are some synonyms of selenium dichloride: The oxidation number of selenium in selenium dichloride is 2. EC Number 233-053-5. Each mL contains Selenious Acid 65.4 mcg (equivalent to elemental selenium 40 mcg/mL) and Water for Injection q.s. It also contains chloride ions Thionyl chloride is an inorganic compound with the chemical formula S O Cl 2.It is a moderately volatile colourless liquid with an unpleasant acrid odour. Selenium deficiency can cause Keshan disease (a type of heart disease) and male infertility. 2021-02-07. ... Selenium tetrachloride is the inorganic compound composed with the formula SeCl4. All rights reserved. A tabular list of the released analytes follows: Lab Number Analyte SAS Label (and SI units) LBXSEL Selenium (µg/dL) l39_c LBDSELSI Selenium (µmol/L) Not all the chalcogen [oxygen family elements] can form dichloride and dibromide. Germanium dichloride is a chemical compound of germanium and chlorine with the formula GeCl2. Selenium dichloride has been prepared by treating gray selenium with sulfuryl chloride. The level of selenium in most urban air ranges from 0.1 to 10 ng/m3, but higher levels may be found in certain areas, such as in the vicinity of copper smelters (Zoller & Reamer, 1976). Create . Search results for selenium chloride at Sigma-Aldrich. Compare Products: Select up to 4 products. ", Chemical Rubber Company handbook of chemistry and physics, F.A. The steric number of a molecule is the number of atoms bonded to the central atom of a molecule (σ sigma bond) plus the number of lone pairs on the central atom. Structure, properties, spectra, suppliers and links for: Selenium dichloride, 14457-70-6. Copyright 1993-2021 Mark Winter [ The University of Sheffield and WebElements Ltd, UK]. Number of Stable Isotopes: 6 (View all isotope data) Ionization Energy: 9.752 eV. Permanent link for this species. More... Molecular Weight: 165.9 g/mol. *Please select more than one item to compare Only oxygen and sulfur occur as dichlorides and dibromide. Selenium is an essential trace mineral known for its antioxidant function, leading to the expectation that selenium would play a protective role against diabetes mellitus.1, 2 However, evidence from observational studies on selenium and diabetes is inconclusive. 2005-08-08. The number of electrons in each of Selenium's shells is 2, 8, 18, 6 and its electron configuration is [Ar] 3d 10 4s 2 4p 4. CAS Number/ 313 Category Code EPCRA 302 EHS TPQ EPCRA 304 EHS RQ CERCLA RQ EPCRA 313 TRI RCRA Code CAA 112(r) RMP TQ; Selenium Compounds: N725 & 313: Selenium oxychloride: 7791-23-3: 500 pounds: 500 pounds: 313c Each mL contains Selenious Acid 65.4 mcg (equivalent to elemental selenium 40 mcg/mL) and Water for Injection q.s. Selenium deficiency is also associated with male infertility and might play a role in Kashin-Beck disease, a type of osteoarthritis that occurs in certain low-selenium areas of China, Tibet, and Siberia [1,2,5,6,8,24]. Selenium Injection is a sterile, nonpyrogenic solution for use as an additive to solutions for Total Parenteral Nutrition (TPN). WebElements: THE periodic table on the WWW [www.webelements.com] The data on these compounds pages are assembled and adapted from the primary literature and several other sources including the following. Beyond sulfur as we move down the group none of the element occur as dibromide and dichoride. It forms red-brown solutions in ethers. CAS Registry Number: 14457-70-6; Chemical structure: This structure is also available as a 2d Mol file or as a computed 3d SD file The 3d structure may be viewed using Java or Javascript. Adducts of selenium dichloride with thioethers and thioureas are well characterized. SELENIUM 217 4. Linear Formula SeCl 4. STEPS INVOLVED There are three basic steps to determining the molecular shape of a molecule: Write the Lewis dot structure of the molecule. Use this link for bookmarking this species for future reference. Selenium is a naturally occurring, solid substance that is widely but unevenly distributed in the earth's crust. In this video, we focus on atoms with a steric number of 4, which corresponds to sp³ hybridization. Murillo, and M. Bochmann, in. Selenium deficiency could exacerbate iodine deficiency, potentially increasing the risk of … The chart below shows the calculated isotope pattern for the formula SeCl2 with the most intense ion set to 100%. MDL number MFCD00011225. Selenium content and glutathione peroxidase activity of milk from vegetarian and nonvegetarian women. pH may be adjusted with nitric acid to 1.8 to 2.4. The selenium atom has a radius of 120 pm and a Van der Waals radius of 190 pm. Elemental selenium is commercially produced, primarily as a by-product of copper refining. Convert grams Selenium Dichloride to moles or moles Selenium Dichloride to grams. Selenium is released into the air as hydrogen selenide, produced metabolically by plants, and as elemental selenium, selenites and selenates in particulate form. One way to determine the hybridization of an atom is to calculate its steric number, which is equal to the number of sigma bonds surrounding the atom plus the number of lone pairs on the atoms. Selenium and human lactation in Australia: Milk and blood selenium levels in lactating women, and selenium intakes of their breast-fed infants. 1989. All 20 valence electrons (6 from S, and 7 from each Cl atom) are accounted for by the Lewis structure, so VSEPR Theory can now be used to determine molecular shape. Debski B, Finley DA, Picciano MF, Lonnerdal B, Milner J. Permanent link for this species. This is a LONG document. They include selenious acid (H 2 SeO 3), selenium dichloride (SeCl 2) and selenium oxychloride (SeOCl 2). The table shows element percentages for SeCl2 (selenium dichloride). Selenium oxydichloride. You can reference the WebElements periodic table as follows:"WebElements, https://www.webelements.com, accessed February 2021. Water (H 2 O) - Water has two hydrogen atoms bonded to oxygen and also 2 lone pairs, so its steric number is 4.; Ammonia (NH 3) - Ammonia also has a steric number of 4 because it has 3 hydrogen atoms bonded to nitrogen and 1 lone electron … It contains selenium in its +1 oxidation state. Molecular weight calculation: 78.96 + 35.453*2 ... of each element in a chemical formula by the number of atoms of that element present in the formula, then adding all of these products together. Selenium monochloride, also known as selenium(I) chloride or diselenium dichloride, is a chemical compound. CHEMICAL AND PHYSICAL INFORMATION 4.1 CHEMICAL IDENTITY Information regarding the chemical identity of selenium and selenium compounds is presented in Table 4-1. Seleninyl dichloride. The number of electrons in each of Selenium's shells is 2, 8, 18, 6 and its electron configuration is [Ar] 3d 10 4s 2 4p 4. Use this link for bookmarking this species for future reference. The oxidation number of selenium in selenium dichloride is 2. The CAS number is the substance numerical identifier assigned by the Chemical Abstracts Service, a division of the American Chemical Society, to substances registered in the CAS registry database. The label on the 90-tablet bottle recommended taking one of the 150-mcg tablets daily. A substance identified primarily by an EC or list number may be linked with more than one CAS number, or with CAS numbers that have been deleted. 1.4 Physical and Chemical Properties Selenium is a non-metallic element of the sulfur group. It covers all possible shapes for molecules with up to six electron pairs around the central atom. S, which is the molecule's central atom, has a steric number equal to 4 and a coordination number equal to 2. pH may be adjusted with nitric acid to 1.8 to 2.4. Acta Paediatr 81:292–295. Selenium dichloride is the inorganic compound with the formula SeCl 2. Caswell No, 732; CI 77805; Elemental selenium; Gray selenium; Selenium alloy; Selenium base; Selenium compounds; Selenium dust; EPA Pesticide Code: 072001 WARNING. Selenium deficiency is very rare in the United States and Canada. It might also cause Kashin-Beck disease, a type of arthritis that produces pain, swelling, and loss of motion in your joints. On December 27, 1983, a 57-year-old female in New York began taking a daily selenium supplement distributed by Brite Years, Inc., of Tempe, Arizona. CopyCopied, CSID:123257, http://www.chemspider.com/Chemical-Structure.123257.html (accessed 12:51, Feb 12, 2021) Thionyl chloride is primarily used as a chlorinating reagent, with approximately 45,000 tonnes (50,000 short tons) per year being produced during the early 1990s. Selenium, in its pure form of metallic gray to black crystals, is often referred to as elemental selenium or selenium dust. Exposures to selenium may result during the smelting and refining of ores containing selenium, in the refining of copper, silver, and gold to remove the selenium, or from the use of selenium compounds. Epidemiologic Notes and Reports Selenium Intoxication -- New York . Information on this page: Reaction thermochemistry data That gives you the steric number (SN) — the number of bond pairs and lone pairs around the central atom. 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. Steric Number Calculation Examples . Molecular Weight 220.77 . The selenium atom has a radius of 120 pm and a Van der Waals radius of 190 pm. With Selenium Chloride we can assume we have a variable and do the following; browser.Click(login); The reason we can do this is because a key feature of Selenium Chloride is the way it implements the page object pattern, allowing management of and changes to the objects to be done outside of code. PubChem Substance ID 24859372. Selenium exists in several allotropic forms.

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