【答案】应助回帖

20楼: Originally posted by 鄢燕 at 2012-07-25 13:56:52
我试过，会变硬但外表面还是曾油状...

21楼: Originally posted by 813523690 at 2012-07-26 10:07:55
是会变硬 我的也是一样...

5楼: Originally posted by 鄢燕 at 2012-07-19 17:13:48
我看文献上描述的 称取21. 810g 硝酸镍, 2. 416g 硝酸铜, 3. 846g 硝酸
镁, 10g柠檬酸于烧杯中混合, 溶于100m l蒸馏水, 搅
拌, 加热蒸发。得到较稠的凝胶,
我溶液都快蒸干了，还没看都凝胶哦，  是不是还要加模 ...