十二水硫酸铝铵的制备与表征  

Preparation and characterization of aluminum ammonium sulfate dodecahydrate

作　　者：王崇臣[1] 王鹏[2] 

机构地区：[1]北京建筑工程学院环境科学与工程系,北京100044 [2]北京建筑工程学院水环境教学示范中心,北京100044

出　　处：《实验室科学》2013年第6期4-6,共3页Laboratory Science

基　　金：北京市属高等学校人才强教计划资助项目(项目编号:PHR201008372;PHR201106124);北京建筑工程学院教研项目(项目编号:Y11-13)

摘　　要：介绍了冷却结晶法制备NH_4Al(SO_4)_2·12H_2O,并通过傅里叶变换红外光谱、X射线衍射、热重-差热等手段对结晶物进行表征,并通过铁灵分光光度法、重量法和水杨酸分光光度法分别测定Al^(3+)、SO_4^(2-)和NH_4^+含量确定结晶物中NH_4Al(SO_4)_2·12H_2O的含量。Preparation of aluminum ammonium sulfate dodecahydrate with cooling crystallization meth- od was introduced. The harvested crystals were characterized by Fourier Transform infrared spectrosco- py, X- ray diffraction, thermogravimetry- differential thermal analysis. And the content of NH4＋, A13＋ , SOg2-were determined by 1,10-phenanthmline spectrophotometry, gravimetry and salicylic acid spectrophotometry, respectively, to calculate the content of aluminum ammonium sulfate dodecahydrate crystals in the harvested precipitates.

关 键 词：硫酸铝铵 制备 冷却结晶 

分 类 号：O611[理学—无机化学] G642[理学—化学]