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It is used in the manufacture of other selenium compounds. Selenium dioxide is an oxidizing agent mostly used in the allylic oxidation of alkenes to produce allylic alcohols. It is used in creating colorless glass and toner in photographic developing.
Wang, Y.; Yang, H.; Xia, Z.; Tong, Z.; Zhou, L. One-pot synthesis of CdSe quantum dots using selenium dioxide as a selenium source in aqueous solution. Bull. Korean Chem. Soc. 2011, 32, 2316-2318.
Lee, E. P.; Song, S. Y.; Lee, D. W.; Ok, K. M. New Bismuth Selenium Oxides: Syntheses, Structures, and Characterizations of Centrosymmetric Bi2(SeO3)2(SeO4) and Bi2(TeO3)2(SeO4) and Noncentrosymmetric Bi(SeO3)(HSeO3). Bull. Korean Chem. Soc. 2013, 52 (7), 4097-4103.
Hazard Statements: H301-H331-H373
Toxic if swallowed. Toxic if inhaled. May cause damage to organs through prolonged or repeated exposure.
Precautionary Statements: P260-P301+P310a-P304+P340-P311a-P405-P501a
Do not breathe dust/fume/gas/mist/vapours/spray. IF SWALLOWED: Immediately call a POISON CENTER/doctor IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Call a POISON CENTER/doctor. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.