| 查看: 298 | 回复: 1 | ||
[求助]
求助具体培养方法
|
|
先谢谢了有专利文献: The reaction mixture was allowed to stir under reflux conditions for approximately thirty minutes. After the thirty minute time period, the heating mantle was shut off to allow slow cooling of the reaction mixture with stirring. The reaction mixture was allowed to cool with stirring overnight (about 18 hours). As the reaction mixture cooled, the product crystallized out as large "yellowish" hexagonal prismatic crystals. The mixture was allowed to stir under ambient conditions for one hour. The crystals were spread over glass trays and allowed to dry under ambient conditions to a Karl Fischer value of about 9.6%. 我是这样操作的,反应液在搅拌作用下回流30min,然后关掉热源继续叫吧,自然冷却到室温。结果我 是生成了针晶,和文献文献描述不一样!为什么?再一个文献说在室温干燥,如何操作? |
» 猜你喜欢
求碳酸钠和碳酸氢钠的晶胞结构图或晶体结构图
已经有0人回复
江西科技师范大学物理化学课题组接收调剂生,12点开启,速来
已经有0人回复
无机化学论文润色/翻译怎么收费?
已经有85人回复
【2026 考研调剂】哈尔滨工程大学 招收学硕调剂生(英语一、数学一)
已经有0人回复
四川轻化工大学化学与环境工程学院 付昱教授课题组招收调剂硕士研究生
已经有11人回复
大连化物所招收有机背景的博士候选人
已经有0人回复
在MOF中,有没有羧基参加配位的情况
已经有2人回复
招2026年入学上海交通大学博士生,急!!!
已经有1人回复
2楼2015-08-17 09:01:19












回复此楼