搜索 - 科创

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蒸馏浓硫酸硝酸钾混合物制备发烟HNO31.材料：98%H2SO4 、KNO3干燥KN20min，充分除去水分。(KN来源于化肥，已重结晶两遍）2.加料根据方程式，投入150克KN,加入15...

这两天备战天文奥赛，给几个小同志讲星等讲到怀疑人生，特发此贴发一通牢骚。1、星等是什么星等类似于分贝，本质就是个对数定义的单位，从逼乎上摘一段介绍，大家看看就好。作者：巨佬RD链接：https://w...

我虽然不是大佬，但也入门一段时间了，还记得刚入门被坑了70元，所以写了这篇文章，给准备入门的新人一个建议，防止新人被坑首先，你要明确你要做些什么，像我是做kn的提纯晶体，还有一些不是很剧烈的反应，...

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