[交流] 【求助】均匀性！！！！！！！

Originally posted by chj0725 at 2011-03-23 10:51:19:
请教各位虫友：
            我把二水硫酸钙原料放在水热反应釜里面，做水热反应合成半水硫酸钙；反应机理就是：二水硫酸钙在反应釜里面分解生成半水硫酸钙，然后生成的半水硫酸钙溶解在水里，当其浓度达到饱和时 ...

Originally posted by wwennian at 2011-03-23 10:54:17:
先用研钵研细再筛啊。结晶出来的晶体晶粒应该很规整的！

Originally posted by chj0725 at 2011-03-23 11:00:06:
问题是我不知道用多大孔径的筛子筛啊

Originally posted by wwennian at 2011-03-23 11:02:02:
40-120目就差不多了！

Originally posted by chj0725 at 2011-03-23 11:03:19:
请问：你确定的依据是？

Originally posted by wwennian at 2011-03-23 11:49:00:
我就是根据自己的经验以及有些方法上所说。更细的目数也没有什么必要！