Selenium dioxide is the chemical compound with the formula SeO2. This colorless solid is one of the most frequently encountered compounds of selenium...

arsenic. Selenium forms two oxides: selenium dioxide (SeO2) and selenium trioxide (SeO3). Selenium dioxide is formed by combustion of elemental selenium: Se...

The Riley oxidation is a selenium dioxide-mediated oxidation of methylene groups adjacent to carbonyls. It was first reported by Harry Lister Riley and...

organoselenium compounds, chemical compounds containing carbon-to-selenium chemical bonds. Selenium belongs with oxygen and sulfur to the group 16 elements or...

forms two oxides: selenium dioxide (SeO2) and selenium trioxide (SeO3). Selenium dioxide is formed by the reaction of elemental selenium with oxygen: Se...

Sulfur dioxide (IUPAC-recommended spelling) or sulphur dioxide (traditional Commonwealth English) is the chemical compound with the formula SO 2. It is...

Selenium oxide may refer to either of the following compounds: Selenium dioxide, SeO2 Selenium trioxide, SeO3 Diselenium pentoxide, Se2O5 This set index...

synthesis involved the redistribution reaction of selenium dioxide and selenium tetrachloride. Pure selenium oxydichloride autoionizes to a dimer: SeOCl2 ↔...

are used to produce the oxide coating. "Cold" bluing is generally a selenium dioxide-based compound that colours steel black, or more often a very dark...

It also forms by the reaction of bromine trifluoride (BrF3) with selenium dioxide. The crude product can be purified by sublimation. The relative reactivity...

precursor to Se(VI) compounds. Selenium trioxide is difficult to prepare because it is unstable with respect to the dioxide: 2 SeO3 → 2 SeO2 + O2 It has...

composites. Camphorquinone is produced by the oxidation of camphor with selenium dioxide. Polymerization is induced very slowly by camphorquinone, so amines...

involving more easily handled reagents entails the fluorination of selenium dioxide with sulfur tetrafluoride: SF4 + SeO2 → SeF4 + SO2 An intermediate...

Selenium is an essential micronutrient for animals, though it is toxic in large doses. In plants, it sometimes occurs in toxic amounts as forage, e.g....

neutralizing solutions of selenous acid, which is generated by dissolving selenium dioxide in water. The process proceeds via the hydrogenselenite ion, HSeO−3...

Tellurium dioxide (TeO2) is a solid oxide of tellurium. It is encountered in two different forms, the yellow orthorhombic mineral tellurite, β-TeO2, and...

is prepared by oxidising selenium compounds in lower oxidation states. One method involves the oxidation of selenium dioxide with hydrogen peroxide: SeO2...

organic solvents. It can be prepared by oxidation of cyclohexanone by selenium dioxide. The enol is about 1 kcal/mol more stable than the diketo form. Numerous...

Disulfur dioxide, S2O2 Sulfur monoxide, SO Sulfur dioxide, SO2 Sulfur trioxide, SO3 Higher sulfur oxides, SOx where x > 3 Selenium dioxide, SeO2 Selenium trioxide...

acids:[page needed] SeCl4 + 3 H2O → H2SeO3 + 4 HCl Upon treatment with selenium dioxide, it gives selenium oxychloride:[page needed] SeCl4 + SeO2 → 2SeOCl2 Lide, David...

providing the essential trace element selenium. Its preparation involves reacting sodium hydroxide with selenium dioxide. "Sodium hydrogen selenite". pubchem...

involved chlorination of elemental selenium. An improved method involves the reaction of a mixture of selenium, selenium dioxide, and hydrochloric acid: 3 Se...

to the corresponding nitrone using hydrogen peroxide, catalyzed by selenium dioxide. Tetrahydroisoquinoline derivatives may be formed in the body as metabolites...

through the metallurgical use of phosphoric acid or in conjunction with selenium dioxide can create a high contrast visual substrate onto which other compositional...

representative transformations include sulfonation: oxidation with selenium dioxide to camphorquinone . Camphor can also be reduced to isoborneol using...

available sesquiterpenoid: In the synthesis of some fine chemicals, selenium dioxide is used to convert alkenes to allylic alcohols: R2C=CR'-CHR"2 + [O]...

materials, e.g., sodium selenite may be preferred over easily evaporating selenium dioxide (SeO2). Also, more readily reacting raw materials may be preferred...

yield m-phenoxytoluene. Second, oxidation of m-phenoxytoluene over selenium dioxide provides m-phenoxybenzaldehyde. Third, a Cannizzaro reaction of the...

the most common water-soluble selenium compound. Sodium selenite usually is prepared by the reaction of selenium dioxide with sodium hydroxide: SeO2 +...

purchased in cylinders. Elemental selenium can be recovered from H2Se through a reaction with aqueous sulfur dioxide (SO2). 2 H2Se + SO2 ⇌ 2 H2O + 2 Se...