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 Diallylamine
124-02-7

Diallylamine synthesis

9synthesis methods
Diallylamine is synthesized by hydrolysis of diallyl cyanamide. The hydrolysis reaction was carried out in a sulfuric acid medium, and the reflux was moderated for 6h. Yield 80-88%.
-

Yield:-

Reaction Conditions:

with sulfuric acid in water at 30;

Steps:

1.1.3; 1.1.4

(3) Dehydration section: The upper distillation component is collected and pumped into the dehydration kettle to cool down to below 30 °C, the stirring is started, and the quantitative solid alkali dehydration is added.Dehydrated oil phase water ≤ 1.5%, concentrated dehydration components to be rectified. (4) Refinement section: pumping the dehydrated component into the rectification vessel, atmospheric distillation,The pre-collection fraction was collected and the finished diallylamine was collected when the top temperature reached 112 °C. The prepared diallylamine is a colorless transparent liquid, and the color is measured by a colorimeter with a color of 18,The content of the gas was determined by GC gas chromatography to be 99.3%, and the water was measured by Karl Fischer method, and the water content was equal to 0.20%.

References:

CN109369413,2019,A Location in patent:Paragraph 0047; 0048; 0051; 0052; 0053

Diallylamine Related Search:

长沙市| 五河县| 板桥市| 宽甸| 嵊泗县| 枝江市| 泽普县| 溧水县| 延寿县| 中卫市| 昌图县| 花莲县| 项城市| 内乡县| 小金县| 东安县| 青浦区| 铜川市| 濮阳县| 石门县| 南岸区| 弥渡县| 蒲城县| 富阳市| 黑山县| 开远市| 安宁市| 澄迈县| 西华县| 高陵县| 吐鲁番市| 衢州市| 达州市| 长兴县| 布拖县| 无棣县| 盘山县| 海安县| 卓资县| 贵南县| 乌拉特后旗|