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为了阐明空气中二氧化硫的光氧化作用的动力学和机制而有意设计的实验室研究中,反复发现在净化过的空气中的二氧化硫和二氧化氮的稀释混合气体经光解作用,在反应瓶的较下部位有一种白色固体物质。用照射浓度较高的SO_2—NO_2—空气混合物的方法,制备了足够的样品供分析研究。根据熔点测定,微量化学分析,反应物的化学计量、红外光谱、质谱及其化学行为,已鉴定出此光化学反应产物为亚硝基硫酸。已知在铅室法制造硫酸的过程中在缺乏光的情况下也能形成这种化合物。考察了认为在这一过程中发生的化学反应。提出了一个在污染的大气中形成NOHSO_4的可能反应图式。讨论了这些发现与大气化学的关系。解。本文描述了分离和鉴定此白色固体光化学反应产物是亚硝基硫酸的方法和过程。
In a deliberately designed laboratory study to elucidate the kinetics and mechanisms of photooxidation of sulfur dioxide in the air, it was repeatedly discovered that the dilute mixed gas of sulfur dioxide and nitrogen dioxide in the purified air was subjected to photolysis, The lower part has a white solid material. With the irradiation of SO_2-NO_2-air mixture with higher concentration, sufficient samples were prepared for analysis. According to the melting point determination, trace chemical analysis, stoichiometry of reactants, infrared spectra, mass spectra and their chemical behavior, this photochemical reaction product has been identified as nitrosylsulfuric acid. It is known that such compounds can also be formed in the absence of light during the manufacture of sulfuric acid by the plumbing chamber method. Examined the chemical reactions that took place in the process. Proposed a possible reaction scheme for the formation of NOHSO_4 in the polluted atmosphere. The relationship between these findings and atmospheric chemistry is discussed. solution. This paper describes a method and process for the isolation and characterization of a nitrosylsulfuric acid as a white solid photochemical reaction product.