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 PENTACHLOROTHIOPHENOL
133-49-3

PENTACHLOROTHIOPHENOL synthesis

5synthesis methods
-

Yield:-

Reaction Conditions:

with sodium hydroxide;sodium hydrogensulfide;concentrated aqueous hydrochloric acid in N-methyl-acetamide;water

Steps:

1.4.1 Example 1
Example 1 Hexachlorobenzene (25.0 g, 0.088 mol) was added to 50 mL of dimethylformamide followed by the addition of 7.4 g (0.096 mol) of 73% sodium hydrosulfide and 7.9 mL (0.079 mol) of 40% aqueous sodium hydroxide. The stirred reaction mixture was heated to 85° C. for 3.0 hr, cooled to room temperature, and poured into 200 mL of water. After 10 min of stirring, the insoluble material was removed by filtration, and the filtrate acidified with 15 mL (0.18 mol) of concentrated aqueous hydrochloric acid. The resulting precipitate was collected by filtration, washed with 100 mL of water, and dried in vacuo giving 22.8 g, 92% of theoretical, of pentachlorothiophenol.

References:

Uniroyal, Inc. US4461918, 1984, A

FullText

PENTACHLOROTHIOPHENOL Related Search: