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 DIMETHYLSILANE
1111-74-6

DIMETHYLSILANE synthesis

15synthesis methods
-

Yield: 97%

Reaction Conditions:

with lithium aluminium tetrahydride;calcium hydride;zirconium(IV) oxide in diethylene glycol dimethyl ether at 50; for 10 h;Inert atmosphere;

Steps:

1
The 100 mL three-neck round bottom flask was dried, connected to a mechanical stirrer, a spherical condenser tube, a constant pressure funnel and a gas guiding device, and then vacuum-replaced with nitrogen three times while the hot air gun was baked to remove the attached water vapor.Under a nitrogen atmosphere, 9.3 g (0.22 mol) of CaH2, 0.38 g (0.01 mol) of lithium aluminum hydride, 25 mL of diethylene glycol dimethyl ether solvent, and 25 g of ZrO 2 ceramic balls (φ = 0.90 mm) were placed in the reaction flask.25.8 g (0.2 mol) of Me2SiCl2 was added to a constant pressure funnel, and slowly added dropwise to the reaction flask under mechanical stirring.After the completion of the dropwise addition, the mixture was heated to 50 ° C and reacted for 10 hours.The main reduction product obtained was Me2SiH2, and the reaction yield was 97%.

References:

Chinese Academy Of Sciences Chemical Institute;Li Yongming;Chen Yi;Xu Caihong;Wang Xinliang CN108285467, 2018, A Location in patent:Paragraph 0064-0065

DIMETHYLSILANE Related Search: