Solid SeO 2 is a one-dimensional polymer, the chain consisting of alternating selenium and oxygen atoms. Add / Edited: 11.10.2014 / Evaluation of information: 5.0 out of 5 / number of votes: 1. Page: [249 - 252] Na2O + H2O-----> H2 Na2 O2. Our channel. SeO2 + H20 -----> H2 Se O3. Examples: Fe, Au, Co, Br, C, O, N, F. Compare: Co - cobalt and CO - carbon monoxide, To enter an electron into a chemical equation use {-} or e. To enter an ion specify charge after the compound in curly brackets: {+3} or {3+} or {3}. SeO 2 or O 2 Se: Synonyms: SELENIUM DIOXIDE. DOI: 10.2174/157017807781024273 In many cases a complete equation will be suggested. Each Se atom is pyramidal and bears a terminal oxide group. SeO 2 in water: a mild and efficient promoter for deprotection of acetyl, methoxymethyl and tetrahydropyranyl ethers and sequel oxidation of methyl/methylene carbons of alpha carbonyl carbon. The answer will appear below, Always use the upper case for the first character in the element name and the lower case for the second character. SeO 2: 1: 110.9588: H 2 Se: 2: 80.97588: Se: 3: 78.96: H 2 O: 2: 18.01528: Units: molar mass - g/mol, weight - g. Please tell about this free chemistry software to your friends! Hence the reaction setup must be maintained under a fuming cupboard. Pranjal Gogoi, Often the terms selenous acid and selenium dioxide are used interchangeably. Also, the reagent system cleaves activated carbon-carbon double bonds to their corresponding carbonyls. Abstract: A novel selenium dioxide catalyzed dihydroxylation of various olefins using hydrogen peroxide as stoichiometric oxidant is reported. Preparation. SeO 2 + 2NaOH → Na 2 SeO 3 + H 2 O [ Check the balance ] Selenium(IV) oxide react with sodium hydroxide to produce sodium selenite and water. SiO2 + H2O -----> H2 Si O3 * Use of acetic acid as solvent stops the reaction at allylic alcohol stage due to formation of acetate esters. For example, reaction with sodium hydroxide produces sodium selenite: SeO 2 + 2 NaOH → Na 2 SeO 3 + H 2 O. More... Molecular Weight: 110.97 g/mol. About | Feedback and suggestions | Contact us | … Enter either the number of moles or weight for one of the compounds to compute the rest. Pranjal Gogoi, Saikat Das Sharma and Dilip Konwar, “ SeO2/H2O2/H2O-Dioxane: A New Catalytic System for Trans Dihydroxylation of Olefins”, Letters in Organic Chemistry (2007) 4: 249. https://doi.org/10.2174/157017807781024273, VOLUME: 4 Sodium hydroxide - diluted solution. A quick explanation of the molecular geometry of SeO2 including a description of the SeO2 bond angles. It reacts with base to form selenite salts containing the SeO 2 − 3 anion. SeO2 (s) + 2KOH(aq) > K2SeO3(aq) +H2O(l) SeO2(s)+2KOH(aq)→K2SeO3(aq)+H2O(l) Oxoselane oxide. Affiliation:Organic Chemistry Division, Regional Research Laboratory, Jorhat–785006, Assam, India. The relative stereochemistry at Se alternates along the polymer chain (syndiotactic). Direct link to this balanced equation: Instructions on balancing chemical equations: Enter an equation of a chemical reaction and click 'Balance'. Pages: 4 Dilip Konwar Title: SeO2/H2O2/H2O-Dioxane: A New Catalytic System for Trans Dihydroxylation of Olefins VOLUME: 4 ISSUE: 4 Author(s): Pranjal Gogoi, Saikat Das Sharma and Dilip Konwar Affiliation:Organic Chemistry Division, Regional Research Laboratory, Jorhat–785006, Assam, India. SeO 2 is considered an acidic oxide: it dissolves in water to form selenous acid. 2020-11-21. If you do not know what products are enter reagents only and click 'Balance'. CaO + H2O -----> H2 Ca O2. The bridging Se-O bond lengths are 179 pm and the terminal Se-O distance is 162 pm. 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By using this website, you signify your acceptance of, calcium hydroxide + carbon dioxide = calcium carbonate + water, Enter an equation of a chemical reaction and click 'Balance'. ChemiDay you always could choose go nuts or keep calm with us or without. 7446-08-4. Keywords: Dihydroxylation, Selenium dioxide, hydrogen peroxide, Title: SeO2/H2O2/H2O-Dioxane: A New Catalytic System for Trans Dihydroxylation of Olefins, Author(s): Pranjal Gogoi, Saikat Das Sharma and Dilip Konwar. For instance equation C6H5C2H5 + O2 = C6H5OH + CO2 + H2O will not be balanced, but PhC2H5 + O2 = PhOH + CO2 + H2O will; Compound states [like (s) (aq) or (g)] are not required. Selenium dioxide appears as a white or creamy-white volatile lustrous crystal or crystalline powder with a pungent sour smell. Selenium(IV) oxide. Organic Chemistry Division, Regional Research Laboratory, Jorhat–785006, Assam, India., India, Journal Name: Letters in Organic Chemistry. Title: SeO2/H2O2/H2O-Dioxane: A New Catalytic System for Trans Dihydroxylation of Olefins VOLUME: 4 ISSUE: 4 Author(s): Pranjal Gogoi, Saikat Das Sharma and Dilip Konwar Affiliation:Organic Chemistry Division, Regional Research Laboratory, Jorhat–785006, Assam, India. Saikat Das Sharma, Substitute immutable groups in chemical compounds to avoid ambiguity. Al2O3 + H2O ----> H2 Al2 O4 ---> H Al O2. Reaction conditions: * Compounds of selenium are very poisonous and smelly. ISSUE: 4Year: 2007 Please register to post comments. Сoding to search: SeO2 + H2O = H2SeO3. Also, the reagent system cleaves activated carbon-carbon double bonds to their corresponding carbonyls. If you do not know what products are enter reagents only and click 'Balance'. Selenium oxide. Melting point 340 deg C. Density 3.954 g / cm3 . Variety of solvents can be employed. Create . Become a Patron! Dates: Modify . Limiting reagent can be computed for a balanced equation by entering the number of moles or weight for all reagents.