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xin zhi cu(oh)2 yang hua yi quan de ben zhi
Author(s): 
Pages: 4-5
Year: Issue:  2
Journal: Experiment and Equipment for Primary School

Abstract: 检验乙醛的Cu(OH)2必须是新制的,这是为什么?按照课文的实验配比配制的Cu(OH)2并不是沉淀,而是亮蓝色溶液,这是Cu(OH)2吗?若独立取出的新制浅蓝色Cu(OH)2沉淀却与久存或市售的试剂Cu(OH)2一样难与乙醛反应,观察不到砖红色Gu2O沉淀.根据这些现象,我校课题组进行了认真的研究,结论如下.……
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