二草酸合铜酸钾产品探究
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摘要
蒸发浓缩是产品制备过程中一个重要的环节,与实验的产率及成败直接相关。在实际操作中,学生对浓缩程度的把握能力不够,通常使得产率偏低或得不到产物而导致实验失败。因此,将二草酸合铜酸钾制备实验设计为探索实验,通过探索浓缩体积与产品的关系,提高学生对浓缩程度的把控能力,进而提高学生的实验操作技能,培养学生独立思考的能力。
Evaporation-enrichment method is an important part of the product preparation process, and is directly related to the yield and success of the experiment. In practice, students have insufficient ability to grasp the degree of enrichment, usually resulting in low yield or product, which leads to experiment failure. Therefore, the experiment design of potassium copper(Ⅱ) oxalate complexes is used as an exploratory experiment. By exploring the relationship between concentrated volume and product, students' ability to control enrichment is improved, and students' experimental operation skills are improved, and students' ability to think independently is cultivated.
Evaporation-enrichment method is an important part of the product preparation process, and is directly related to the yield and success of the experiment. In practice, students have insufficient ability to grasp the degree of enrichment, usually resulting in low yield or product, which leads to experiment failure. Therefore, the experiment design of potassium copper(Ⅱ) oxalate complexes is used as an exploratory experiment. By exploring the relationship between concentrated volume and product, students' ability to control enrichment is improved, and students' experimental operation skills are improved, and students' ability to think independently is cultivated.
引文
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[4]高明丽,黄微,刘卫,等.无机化学实验课程启发式教学探析[J].大学化学,2016, 31(10):10-13.
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[7]杨晓改,刘会雪,黄健.在药学院的无机化学教学中培养学生的科学思维能力[J].大学化学,2016,31(1):18-22.
[8]冯秀玲.地方院校物理化学开放式实验探索与实践[J].实验科学与技术,2018,16(4):40-42.
[9]刘亚楠.刘葵,苏秀荣.硫酸亚铁铵、三草酸合铁(Ⅲ)酸钾的制备及其测定[J].中国现代教育装备,2016, 247:70-72.
[10]秦剑.二水合二草酸合铜_酸钾的制备和组成测定[J].辽宁师专学报,2008, 10(4):103-104.
[11]欧阳宇,米冉.水合二草酸合铜酸钾的控制制备[J].湖北师范学院学报,2012, 32(1):80-84.
[12] CUI A, WEI J, YANG J, et al. Controlled synthesis of two copper oxalate hydrate complexes:kinetic versus thermodynamic factors[J]. Journal of Chemical Education,2009, 86(5):598-599.
[2]蒲雪梅,陈华,寇兴明.大学化学实验[M].北京:化学工业出版社,2010.
[3]杨孝容,王应红,袁明倩,等.不同原料配比制备硫酸亚铁铵的稳定性研究[J].实验室科学,2015,18(5):17-19.
[4]高明丽,黄微,刘卫,等.无机化学实验课程启发式教学探析[J].大学化学,2016, 31(10):10-13.
[5]李晓杰,高子舒,乌仁格格,等.无机化学实验教学改革探索[J].河套学院学报,2017, 14(1):66-67.
[6]任玲,曹敏花,张秀辉.无机化学课程设置创新型作业的思考与实践[J].大学化学,2015, 30(1):36-40.
[7]杨晓改,刘会雪,黄健.在药学院的无机化学教学中培养学生的科学思维能力[J].大学化学,2016,31(1):18-22.
[8]冯秀玲.地方院校物理化学开放式实验探索与实践[J].实验科学与技术,2018,16(4):40-42.
[9]刘亚楠.刘葵,苏秀荣.硫酸亚铁铵、三草酸合铁(Ⅲ)酸钾的制备及其测定[J].中国现代教育装备,2016, 247:70-72.
[10]秦剑.二水合二草酸合铜_酸钾的制备和组成测定[J].辽宁师专学报,2008, 10(4):103-104.
[11]欧阳宇,米冉.水合二草酸合铜酸钾的控制制备[J].湖北师范学院学报,2012, 32(1):80-84.
[12] CUI A, WEI J, YANG J, et al. Controlled synthesis of two copper oxalate hydrate complexes:kinetic versus thermodynamic factors[J]. Journal of Chemical Education,2009, 86(5):598-599.