一二三四区视频,亚洲少妇熟女色,日本久热无码视频网,欧美国产日韩大尺度,亚洲a视频,久久少妇一区二区,日韩999无码视频,刺激久久久久久久,啊啊啊啊不要啊在线

Welcome to chemicalbook!
Chinese English Japanese Germany Korea
010-86108875
Try our best to find the right business for you.
Do not miss inquiry messages Please log in to view all inquiry messages.

Welcome back!

ChemicalBook CAS DataBase List Borane-trimethylamine complex
75-22-9

Borane-trimethylamine complex synthesis

9synthesis methods
-

Yield:-

Reaction Conditions:

with phosphonic Acid for 2 h;Cooling with ice;Inert atmosphere;

Steps:

4 trimethylamine borane complex preparation
Using the similar reaction apparatus of Figure 1,The reaction chamber is 1000mL glass three bottles,Three bottles placed in ice salt bath.4.5g NaBH4 after grinding into borane generator,5 ml H3PO3 solution was added to the constant pressure funnel.The reaction chamber used argon to replace the air.When reacting,First connected to trimethylamine inert gas flow,Then slowly add concentrated H3PO3 solution to the borane generator, after 2 hours reaction,After the reaction chamber white sediment settlement is completed, close the settlement pipe and trimethylamine inlet valve,The white pure trimethylamine borane complex was collected.

References:

Fudan University;Guo Yanhui;Zheng Xiongfei;Song Yuanzhou CN104628755, 2017, B Location in patent:Paragraph 0039; 0040

Borane-trimethylamine complex Related Search:

华池县| 平潭县| 商南县| 元朗区| 定州市| 邵阳县| 鹤岗市| 星子县| 潼南县| 赣榆县| 凉山| 益阳市| 平罗县| 微山县| 扶风县| 龙岩市| 嵩明县| 石楼县| 集贤县| 五家渠市| 湘阴县| 高安市| 安徽省| 兴山县| 赣州市| 鹰潭市| 德钦县| 临泽县| 桂阳县| 永清县| 浦北县| 全椒县| 当雄县| 木里| 马尔康县| 龙海市| 尖扎县| 新安县| 富顺县| 时尚| 青浦区|