Molar mass of SeO2 = 110.9588 g/mol. [8] This type of reaction is called a Riley oxidation. One of the methods includes oxidising selenium dioxide with hydrogen peroxide. (USCG, 1999). [4] The dimeric form has been isolated in a low temperature argon matrix and vibrational spectra indicate that it has a centrosymmetric chair form. "c" indicates that although not listed by name and CAS number, this chemical is reportable under one or more of the EPCRA section 313 chemical categories. This colorless solid is one of the most frequently encountered compounds of selenium. Answer link. Each Se atom is pyramidal and bears a terminal oxide group. CAS Registry Number： 7446-08-4. Selenium dioxide is the chemical compound with the formula SeO2. Is it possible to find a molecular formula from molar mass? Selenium compounds include selenium (IV) oxide or selenium dioxide (CAS# 7446-08-4), selenium (VI) fluoride or selenium hexafluoride (CAS# 7783-79-1), selenium (II) hydride or hydrogen selenide (CAS# 7783-07-5), selenium (IV) oxychloride (CAS# 7791-23-3), selenium (IV) sulfide or selenium disulfide (CAS# 7488-56-4), selenic acid (CAS# 7783-08-6), and selenous acid (CAS# 7783-00-8). 99.9%. F6A27P4Q4R. It is a nonmetal (more rarely considered a metalloid) with properties that are intermediate between the elements above and below in the periodic table, sulfur and tellurium, and also has similarities to arsenic.It rarely occurs in its elemental state or as pure ore compounds in the Earth's crust. Inhalation of dust can cause bronchial spasms, symptoms of asphyxiation, and pneumonitis. Convert grams Selenium Dioxide to moles or moles Selenium Dioxide to grams. *Please select more than one item to compare [3] Dissolution of SeO2 in selenium oxydichloride give the trimer [Se(O)O]3. Selenium dioxide, also known as selenious oxide, selenous oxide, or selenium (IV) oxide, is a chemical compound. Acute symptoms of ingestion include sternal pain, cough, nausea, pallor, coated tongue, gastrointestinal disorders, nervousness, and conjunctivitis. Fused Aluminum Oxide Powder – AL-603. Bernd E. Langner "Selenium and Selenium Compounds" in Ullmann's Encyclopedia of Industrial Chemistry, 2005, Wiley-VCH, Weinheim. It also contains oxide ions. This colorless solid is one of the most frequently encountered compounds of selenium. SeO2. Reaction conditions: [4] Often the terms selenous acid and selenium dioxide are used interchangeably. Stable to light and heat. Molecular weight calculation: 78.96 + 15.9994*2 ›› Percent composition by element Consult physician after all exposures to this compound. Selenic acid is a strong dibasic acid with the formula H 2 SeO 4.It can be manufactured by oxidising selenium compounds in lower oxidation states. Selenium dioxide imparts a red colour to glass. Overview Information Selenium is a mineral found in soil, water, and some foods. A good oxidizing agent. Please forgive any resultant repetition or failures of chronological order. Selenite (SeO32-) DSSTox_CID_4300 EINECS： 231-194-7. Oxidation of paraldehyde (acetaldehyde trimer) with SeO2 gives glyoxal[7] and the oxidation of cyclohexanone gives cyclohexane-1,2-dione. Selenium dioxide is the chemical compound with the formula SeO2. Selenonyl dioxide is used as a catalyst and as a raw material for electroplating industry. This section provides a listing of alternate names for this chemical, : 2025852; Synonyms: NSC 56753; Selenium oxide; Linear Formula: SeO2; Empirical Formula: O2Se; find related products, papers, technical documents, MSDS & more at Sigma-Aldrich. Selenium dioxide is the active ingredient in some cold-blueing solutions. May protect against heart disease. Selenium is a chemical element with the symbol Se and atomic number 34. [6], SeO2 is an important reagent in organic synthesis. At very low concentrations the vapour has a revolting odour, resembling decayed horseradishes. 1 Answer anor277 Dec 12, 2016 #SeO_2# Explanation: #SeO_2# or #"selenium (IV) oxide"#. Other articles where Selenium dioxide is discussed: selenium: Compounds: …with oxygen, it occurs as selenium dioxide, SeO2, a white, solid, chainlike polymeric substance that is an important reagent in organic chemistry. Formula: Al 2 O 3 101.96. Product Inquiry Technical Docs . SeO2 is considered an acidic oxide: it dissolves in water to form selenous acid. Name： Selenium dioxide. Molecular Weight： 110.95. SELENIUM DIOXIDE reacts with water, particularly hot water, to give selenious (selenous) acid, a weak acid that is corrosive. It was also used as a toner in photographic developing. C B N P O. P. THIS SET IS OFTEN IN FOLDERS WITH... Chapter 5: Chemical Reactions. Expand... * Name is a required field ... * Message is a required field. … ›› Selenium Dioxide molecular weight. & indicates that no RQ is assigned to this generic or broad class, although the class is a CERCLA hazardous substance. The resulting solution can then be used in place of commercial products. Use caution: Liquids with this reactive group classification have been Special Hazards of Combustion Products: Sublimes and forms toxic vapors when heated in fire. Suite 200. , N. Charleston, SC 29405. known to react with the I understand it can be DIY by dissolving nails in a acid solution over a period of time. See 50 Federal Register 13456 (April 4, 1985). listed below. * Selenium dioxide is a colorless solid. Selenium dioxide, monohydrated. selenium dioxide , cas no.7446-08-4 importer trader and stockist with our own warehouse in USA. Oxidizes many organic substances. Chemistry The Mole Concept Determining Formula. Selenium Dioxide is the chemical compound with the formula SeO2. [8] The selenium starting material is reduced to selenium, and precipitates as a red amorphous solid which can easily be filtered off. So it’s important to understand the ways in which we take in selenium, both in the diet and as supplements. Selenium(IV) dioxide is a white crystalline material that melts at 340°C. Handbook of Chalcogen Chemistry: New Perspectives in Sulfur, Selenium and Tellurium, Franceso A. Devillanova, Royal Society of Chemistry, 2007, CS1 maint: multiple names: authors list (. It contains selenium in its +4 oxidation state. The yield is about 80%. Selenium dioxide is the active ingredient in some cold-bluing solutions. It is important for making many body processes work correctly. CCRIS 5530. Selenium dioxide is the chemical compound with the formula SeO 2. Specifications; Purity. Molecular Formula： SeO2. Synonym(s): Selenium dioxide Formula: O2Se Formula weight: 110.96 Purity: 99.4% (metals basis) CAS Number: 7446-08-4 UN Number: UN3283 Hazard Class: 6.1 Packing Group: II Harmonized Tariff Code: 2811.29 Hazard Statements: H301-H331-H373 Toxic if swallowed. Readily soluble in water forming selenious (selenous) acid.
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