成人免费xx,国产又黄又湿又刺激不卡网站,成人性视频app菠萝网站,色天天天天

Welcome to chemicalbook!
Chinese English Japanese Germany Korea
400-158-6606
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 Sodium methanesulfinate
20277-69-4

Sodium methanesulfinate synthesis

6synthesis methods
-

Yield:20277-69-4 90.5%

Reaction Conditions:

with hydrazine hydrate;sodium carbonate in water at 30; for 2 h;

Steps:

6
General procedure: A preparation method of substituted sulfinate, taking benzenesulfonyl chloride hydrolysis and reduction to obtain sodium benzenesulfinate as an example:Add 20.1g (0.402mol) of hydrazine hydrate to 300g of water, add 40.8g (0.385mol) of sodium carbonate and dissolve at a temperature of 60.After 111 g (0.629 mol) of benzenesulfonyl chloride was added dropwise, the reaction was incubated for 2 hours, and the synthetic solution was cooled and filtered to obtain the sodium salt of benzenesulfinic acid. The purity was analyzed by HPLC. The results are summarized in Table 1.

References:

Jiangsu Yangnong Chemical Co., Ltd.;Jiangsu Youjia Plant Protection Co., Ltd.;Wu Xiaoju;Jiang Youfa;Wang Baolin;Feng Guangjun;Sun Yingdong;Cheng Yan CN112094210, 2020, A Location in patent:Paragraph 0023-0029

FullText

Sodium methanesulfinate Related Search: