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!

12258-64-9

Bromoniumyl synthesis

6synthesis methods
-

Yield:12258-64-9 5715 g

Reaction Conditions:

in water at 124;Temperature;Solvent;

Steps:

7-8 The concentrated recovery of bromination reaction solution:

The reaction solution after the bromination reaction of Example 2, Example 4, and Example 6 was added to a 10-liter four-neck distillation flask, and heated and distilled under stirring,After steaming 0.6 liter of pre-distillate water at 124 ° C, the cold water bath was lowered to normal temperature to obtain 5715 grams of pale yellow hydrobromic acid.Analysis of hydrogen bromide content of 43.2%; free bromine 240ppm.

References:

CN113683491,2021,A Location in patent:Paragraph 0072-0073

青田县| 广宁县| 万山特区| 清镇市| 虞城县| 鹤山市| 唐山市| 台山市| 开化县| 辽阳市| 贡山| 武威市| 汾阳市| 奇台县| 兴和县| 岱山县| 修水县| 广州市| 廊坊市| 雷州市| 乌拉特前旗| 平山县| 七台河市| 内丘县| 胶州市| 寿光市| 苏尼特左旗| 亳州市| 兰州市| 收藏| 西乌珠穆沁旗| 威远县| 利川市| 海伦市| 塔城市| 探索| 庆城县| 晋州市| 兴安盟| 闸北区| 莒南县|