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?    

Benzylamine

Benzylamine is also known as phenylamine, alpha-aminotoluene and spicy lignitine.
Colourless liquid.
Smoke in the air.
Boiling point 185 ℃, 90 ℃ (1600 pa), relative density 0.9813, the refractive index of 1.5401, UV lambda max255, 262, 270 nm.
Mixed with water, ethanol, ether, soluble in acetone and benzene.
25 ℃ when K = 2.4 x 10-5, alkaline reaction.
It can absorb CO2 and react with halogenated hydrocarbon to generate n-substituted benzamine, which produces n-benzylamide with acyl chloride, acid-anhydride or ester, and it produces n-benzylamine with aldehydes.
Method: it is produced by benzyl chloride and ammonia, or by benzoic acid, and by benzaldehyde and NH3 and H2 / Ni reducation.
Purpose: to be used in the determination of organic synthesis, metal organic compound qualitative test, platinum, vanadium and tungstate, as well as precipitants for thorium, cerium, lanthanum, zirconium etc.

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

哈巴河县| 渭源县| 静海县| 陇南市| 彭泽县| 托里县| 商河县| 汉寿县| 北碚区| 彰化市| 房山区| 友谊县| 苍南县| 齐齐哈尔市| 承德市| 安平县| 玛纳斯县| 新平| 岚皋县| 钦州市| 闸北区| 平定县| 务川| 金平| 平武县| 周宁县| 历史| 盐边县| 阿鲁科尔沁旗| 乌兰察布市| 靖远县| 阳山县| 永康市| 吴忠市| 兴海县| 封开县| 英超| 定州市| 南阳市| 崇信县| 垣曲县|