久久久久久蜜桃一区二区 欧洲美女大胆潮喷 精品少妇熟女ⅤⅤ免费久久久免费 超碰五月天亚洲论坛

  熱線電話:021-54370211?    

Phenylacetyl chloride

Chemical properties of this product is colorless or light yellow liquid, b.p. 94 ~ 95 ℃ / 1.6 kPa, n20D 1.5325, relative density 1.169, soluble in ether, benzene and other organic solvent, water decomposition.
The use of phenylacetyl chloride is an intermediates for the fungicide phenylein and the rodent.
USES for the preparation of spices and organic synthesis
USES for medicinal, pesticide and spices intermediates
USES this product as the spice and its organic synthesis intermediates.
Use organic synthesis.
Acylating agent.
Methods of production are made by the reaction of phenylacetic acid and chlorinated sulfone.
By mixing the hydrochloric acid sulfane, which is waiting for mole, the reaction is to release sulfur dioxide and hydrogen chloride gas at room temperature.
No longer have a large number of gas emission, the reaction mixture heat to 30 to 40 ℃, 25 h insulation, add a quarter of the benzene mixture volume.
Low-temperature distillation to remove volatile matter, is gradually reduced pressure to 0.133 kPa, after being to remove all volatile material, steamed out of 55 to 57 ℃ (0.133 kPa) fractions, namely acetyl chloride.
Yield of 80-85%.
Production method of its preparation methods is in chlorinated benzene acetic acid is added to the reaction kettle and sulfoxide, heating reflux for hours, heating decompression to remove the remaining sulfoxide chloride products, vacuum distillation to finished products.

@ 2016 ShangHaiYaYu Biomedical co.,ltd TEL:021-54370211、54370255、54370355 FAX:021-54370255

永川市| 兴山县| 蚌埠市| 大新县| 桑植县| 莒南县| 广元市| 临沭县| 木兰县| 定襄县| 喀什市| 林周县| 永仁县| 遂川县| 康保县| 麟游县| 建水县| 焦作市| 汾西县| 墨竹工卡县| 靖远县| 石首市| 沧源| 绥江县| 十堰市| 乌什县| 平和县| 深水埗区| 汨罗市| 合阳县| 大同县| 宜宾县| 东乌珠穆沁旗| 福海县| 牡丹江市| 玛沁县| 陵川县| 同江市| 黎川县| 沙坪坝区| 岳普湖县|