亚洲精品国产精品乱码视色-小说区 综合区 首页-又大又粗欧美黑人aaaaa片-熟女少妇精品一区二区

Product Category

Chemistry

Current Location: Home > Products > Chemistry > F

Phenolphthalein

Molecular formula: C20H14O4

Properties: white or light yellow crystals. Soluble in ethanol, less soluble in ethyl ether, insoluble in water.

PH change color range 8.0(achromatism)-10.0(purple)
Quality absorption coefficient L/cm.g 68.0-75.0
Dissolve in ethanol test pass
Loss on drying ≤1.0%
Residue on ignition (count with sulfate) ≤0.05%

Contact Us

Address: 1315, No. 29, Lane 26, Hexuan Road, Wanda, Jiangqiao, Shanghai

Factory Name: Shanghai Jinyuan Fine Chemical Factory

Factory Address: Xiaokunshan Town, Songjiang, China       Zip Code: 201106

Sales Tel: +86-21-51098368    Fax: +86-21-52215553

Email (Chemical reagent): chemol@hi2000.com

Email (Metal surface treatment): yangping2046@yahoo.com.cn

URL (Chemical reagent): www.hkmjd.cn

URL (Metal surface treatment): www.shchem.org

 

  • Mobile version
  • Wechat
Copyright(C)2019, Shanghai Guanghua Technology Co.,ltd. All Rights Reserved.
Supported by ChemNet ChinaChemNet Toocle Copyright Notice