机构地区: 重庆大学城市建设与环境工程学院三峡库区生态环境教育部重点实验室
出 处: 《光谱学与光谱分析》 2010年第10期2646-2649,共4页
摘 要: 以次氯酸钙为原料制备了高纯度高铁酸钾,研究内容包括:高铁酸钾的性质反应温度对产率的影响,重结晶温度对产率的影响,反应时间对产率的影响,次氯酸钙用量对产率的影响。确定了反应温度为25℃,重结晶温度为0℃,反应时间为40 min,反应所需的次氯酸钙用量为理论用量的1.2倍,产率为75%以上。利用直接分光光度法对产物纯度进行了分析,测得产物纯度达到92%以上。论文以红外光谱法、紫外分光光度法、X衍射法对产物进行表征,证明以次氯酸钙为原料制得的产物为高铁酸钾。 Calcium hypochlorite was used as the raw material for preparation of the high purity potassium ferrate.The study includes the effects of reaction temperature,recrystallization temperature,reaction time,Ca(ClO)2 dosage,and the amount of calcium hypochlorite on the yield.It was determined that when the reaction temperature was 25 ℃,recrystallization temperature 0 ℃ and reaction time 40 min,the yield was more than 75%.The purity was detected by direct spectrophotometric method to be more than 92%.The product was characterized by infrared spectrum(IR),X-ray diffraction(XRD) and ultraviolet spectrum(UV) methods and proved to be potassium ferrate that was prepared by calcium hypochlorite as the raw material.