Ball-and-stick models of the hydrogen peroxide molecule

Hydrogen peroxide is a chemical compound. In its pure form, it is a very pale blue liquid that is slightly more viscous than water. It is used as an oxidizer, bleaching agent, and antiseptic, usually as a dilute solution in water for consumer use, and in higher concentrations for industrial use. Concentrated hydrogen peroxide, or "high-test peroxide", decomposes explosively when heated and has been used as a propellant in rocketry. Hydrogen peroxide is a reactive oxygen species and the simplest peroxide, a compound having an oxygen-oxygen single bond. It decomposes slowly when exposed to light, and rapidly in the presence of organic or reactive compounds. It is typically stored with a stabilizer in a weakly acidic solution in a dark bottle to block light. The boiling point of hydrogen peroxide has been extrapolated as being 150.2 degrees Celsius, approximately 50 degrees Celsius higher than that of water. In practice, hydrogen peroxide will undergo potentially explosive thermal decomposition if heated to this temperature. It may be safely distilled at lower temperatures under reduced pressure. Contributor: Junjie Chen, ORCID: 0000-0001-5055-4309, E-mail address: [e-mail], Department of Energy and Power Engineering, School of Mechanical and Power Engineering, Henan Polytechnic University, 2000 Century Avenue, Jiaozuo, Henan, 454000, P.R. China

过氧化氢（hydrogen peroxide）是一种化学化合物。其纯品状态下为极淡蓝色液体，黏度略高于水。其用途包括氧化剂、漂白剂与消毒剂，民用场景多采用水溶液稀释制剂，工业应用则使用更高浓度的产品。浓过氧化氢，俗称高测试过氧化氢（high-test peroxide），受热时会发生爆炸性分解，曾被用作火箭推进剂。过氧化氢属于活性氧（reactive oxygen species），是结构最简单的过氧化物——一类含有氧-氧单键的化合物。该物质在光照条件下会缓慢分解，当接触有机化合物或活性物质时则会快速分解。通常需添加稳定剂，配置于弱酸性溶液中，并以深色避光瓶储存。过氧化氢的沸点经推算为150.2摄氏度，较水的沸点高出约50摄氏度。实际操作中，若加热至该温度，过氧化氢会发生具有潜在爆炸风险的热分解反应。可在减压、低温条件下进行安全蒸馏操作。贡献者：陈俊杰，ORCID：0000-0001-5055-4309，电子邮箱：[e-mail]，河南理工大学机械与动力工程学院能源与动力工程系，中国河南省焦作市世纪大道2000号，邮编454000，中华人民共和国。