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 Carbohydrazide
497-18-7

Carbohydrazide synthesis

9synthesis methods
-

Yield:497-18-7 99%

Reaction Conditions:

with hydrazine hydrate in methanol;water at 75; for 0.000833333 h;Solvent;

Steps:

1 Preparation of carbohydrazide

Dissolving dimethyl carbonate in methanol, Made into a 3mol/L solution, It was injected into the microchannel reactor or the pipeline reactor through a metering pump at a flow rate of 30 ml/min. 80% by mass of aqueous hydrazine hydrate solution was passed through another metering pump at 11.26 ml/ The flow rate of min is injected into the microchannel reactor or the pipeline reactor, React at 75 ° C for 3 seconds, Flow out of the microchannel reactor or pipeline reactor, Collecting reaction materials, Obtaining a white crystalline product, Yield 99%, 99.9%, The monoterpene content is 0.01%.

References:

CN109574870,2019,A Location in patent:Paragraph 0054-0056; 0087-0089

Carbohydrazide Related Search: