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本法基于用注射器取样注入吸收器中,以水振荡吸收二氧化硫和三氧化硫。吸收液(水)的体积20～80毫升,振荡吸收10秒钟以上,吸收后放置10分钟,以中和法和碘量法连续测定。二氧化碳含量低于2%不干扰测定,太高则于吸收溶液中通氮气3分钟,即可消除其影响。其它共存气体不影响测定。本法不需特殊仪器,操作简便,结果准确,精密度好,可远离炉前操作,避免了对人体的危害。已用于沸腾炉气及净化后尾气的分析,也可用于硫酸工艺中的气体分析。试剂配制0.02N碘溶液——2.5克碘溶解于100毫升20%碘化钾溶液中,用玻璃漏斗过滤,保存于棕
This method is based on the use of syringes injected into the absorber, oscillating water absorption of sulfur dioxide and sulfur trioxide. Absorption liquid (water) volume 20 ~ 80 ml, oscillation absorption for 10 seconds or more, after absorption for 10 minutes, by neutralization method and iodometric method for continuous determination. Carbon dioxide content of less than 2% does not interfere with the determination, too high in the absorption solution through the nitrogen for 3 minutes, you can eliminate its impact. Other coexisting gases do not affect the determination. This law does not require special equipment, easy to operate, accurate results, good precision, away from the stove before operation, to avoid the harm to the human body. Has been used for boiling furnace gas and purified exhaust gas analysis can also be used for gas analysis of sulfuric acid process. Reagent preparation 0.02N iodine solution - 2.5 g iodine was dissolved in 100 ml 20% potassium iodide solution, filtered through a glass funnel, stored in brown