大学无机化学实验碱式碳酸铜制备方法的优化
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摘要
"碱式碳酸铜的制备"是大学无机化学的综合设计实验,笔者在多年的教学中发现学生的实验结果并不理想,颜色偏蓝、产量偏低等问题普遍存在。为此对制备条件进行系统研究,并用XRD、FT-IR对产物进行分析。结果表明,当硫酸铜和碳酸钠的物质的量比为1∶1.2时,将碳酸钠溶液加入到硫酸铜溶液中,在75℃反应制得的产物为纯相碱式碳酸铜。
Basic copper carbonate preparation experiment is a representative comprehensive design experiment,which is always set up in inorganic chemistry experiment course for university freshmen.While the experiment results of most students were not so ideal,such as the sample's color was too bluish or the weight was too low,etc.In order to get better results in teaching,the preparation conditions including reactants ratio,react temperature,the order of reactant adding and the order of blending and heating were studied in this paper.The samples were analyzed by XRD and FT-IR.Results indicated that green pure phase basic copper carbonate were prepared at the conditions that molar ratio of CuSO_4 to Na_2CO_3 was 1∶1.2,the Na_2CO_3 solution was added into CuSO_4 solution,and then heated at 75℃ for 15 minutes.
Basic copper carbonate preparation experiment is a representative comprehensive design experiment,which is always set up in inorganic chemistry experiment course for university freshmen.While the experiment results of most students were not so ideal,such as the sample's color was too bluish or the weight was too low,etc.In order to get better results in teaching,the preparation conditions including reactants ratio,react temperature,the order of reactant adding and the order of blending and heating were studied in this paper.The samples were analyzed by XRD and FT-IR.Results indicated that green pure phase basic copper carbonate were prepared at the conditions that molar ratio of CuSO_4 to Na_2CO_3 was 1∶1.2,the Na_2CO_3 solution was added into CuSO_4 solution,and then heated at 75℃ for 15 minutes.
引文
[1]王卫兵,赵跃强,孙鸿.应用化工,2014,43(7):1273-1275
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[3]陈静,石晓波,龚丽维,等.大学化学,2012,27(5):78-82
[4]孙和云.氧化铜、碱式碳酸铜纳米矿物的合成及其表面络合研究.济南:济南大学硕士学位论文,2012:30
[5]黄千钧.云南化工,1994(4):47-49
[6]宋力,刘小玉,王晓兰,等.天津化工,2010,24(6):30-32
[7]吴永娟,赵大洲,费菲,等.化学教育,2015,36(22):28-33
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[12]吴健松,梁海群,周春燕,等.茂名学院学报,2007(6):10-12
[2]管春平,韦薇,杨晓莹,等.大学化学,2007,22(6):42-45
[3]陈静,石晓波,龚丽维,等.大学化学,2012,27(5):78-82
[4]孙和云.氧化铜、碱式碳酸铜纳米矿物的合成及其表面络合研究.济南:济南大学硕士学位论文,2012:30
[5]黄千钧.云南化工,1994(4):47-49
[6]宋力,刘小玉,王晓兰,等.天津化工,2010,24(6):30-32
[7]吴永娟,赵大洲,费菲,等.化学教育,2015,36(22):28-33
[8]北京师范大学无机化学教研室.无机化学实验.3版.北京:高等教育出版社,2007:232-233
[9]秦建芳,姚陈忠.宜春学院学报,2011,33(12):11-12,90
[10]闻辂.矿物红外光谱学.重庆:重庆出版社,1989:55-61
[11]Farmer V C.矿物的红外光谱.应育浦,等译.北京:科学出版社,1982:179-227
[12]吴健松,梁海群,周春燕,等.茂名学院学报,2007(6):10-12