亚洲色情无码,韩国黄色毛片,超碰在线大香蕉,91性爱导航,加勒比综合久

Contact Us
  • Tel: +86-553-3811918(Jack)
  • Mobile:19955325717
  • Fax: +86-553-3838185
  • E-mail:info@bfinechem.com
  • URL:www.huahaibiochem.com
ProductsHome > Products

PROPYL PARABEN


Trade name: JIEMOREL PP
Product name : PROPYL PARABEN
Chemical name : Propyl 4-hydroxybenzoate
CAS # : 94-13-3
Molecular formula : C10H12O3
Structural formula:
Molecular weight : 180.20
Physical and chemical properties
 :  white crystal ,easily soluble in alcohol and ether, nearly insoluble in water,Relative density(d4102 )1.0630,refractive index (nD102)1.5050
Product quality standard

 
Item
Index
Appearance
white powder
Purity (in dry basis), %
98-102
Melting point, ℃
96-99
Loss on drying, %
≤0.5
Residue on ignition, %
≤0.1
Acidity
up to standard
4-Hydroxybenzoic acid and Salicylic acid
up to standard
Solubility
easily soluble in alcohol, ether, acetone, lightly soluble in water


Uses:
● global registration, no stimulation on eyes, skin and mucosa
● widely applied in cosmetics, medical and food industry
● dosage: 0.2~0.5%
● PH range for application: 4~8
Packaging: 25KG/fiber can or on demand
Storage: Should be preserved in cool and dry place sealed。shelf life is 36 months


[ Back ]


Copyright(C)2017,Wuhu Huahai Biotech Co., Ltd. All Rights Reserved. Supported by ChinaChemNet ChemNet Toocle Copyright Notice
国产精品A片| 亚洲国产性爱视频网址| 91AV导航大全| 日韩AV无码网站| 日本欧美黄色| 婷婷社区日本精品无码| 开心激情黄色| av五月| 91综合视频在线观看| 黄色三级性爱AV网| 91在线免费网站| 美女91看片| 亚州A片在线免费视频| 岛国特黄Av在线| 日韩无码啪啪啪| 91在线免费资源视频| 国産精品久久AV| 2025无码人妻| 悠悠草无码| 日韩秋霞理论无码| 爱做av一级| 日韩无码黄色片| 欧亚无码| 1级无吗黄色| 无码精品电影| 北美Av| 国产大学生一级A片| 久久久欧美日韩一区二区| 黄色国产av| 免费A级高清视频| 青青草Aa| 东京热 三级片| 永久日本黄色| 日本婷婷尹人视频| 亚洲一区二区三区毛坯片| 美韩a级毛片| 日韩AV无码资源网| ,亚洲一级A片| 成人AⅤ在线| 久久神馬| 免费α片|