91tv最新永久在线地址-91www成人久久-91xxx在线观看-91xx在线观看-91爱爱-91不卡

Contact Us
ProductsHome > Products

METHYL PARABEN


Trade name: JIEMOREL MP
Product name : METHYL PARABEN
Chemical name : Methyl 4-hydroxybenzoate
CAS# : 99-76-3
Molecular formula : C8H8O3
Structural formula:
Molecular weight : 152.15
Physical and chemical properties:white crystal, easily soluble in alcohol, ether and acetone, lightly soluble in water, boiling point: 270-280℃
Product quality standard

 
Item
Standrd
Appearance
white powder
Purity (in dry basis), %
98-102
Melting point, ℃
125~128
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 and 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
主站蜘蛛池模板: 亚洲国产精品福利片在线观看 | 久久99国产一区| 永久黄网站色视频免费看| 精品视频无码一区二区三区| 精品人妻无码一区二区三区抖音 | 国产在线精品一区二区三区不卡| 国产精品久久久| 真实国产老熟女粗口对白| aa片在线观看视频在线播放| 国产精品久久久久无码av色戒| 69精品丰满人妻无码视频a片| 国产成人精品a视频一区| 永久久久免费人妻精品| 亚洲国产日韩在线人成蜜芽| 亚洲免费观看视频| 亚洲欧洲日产国码无码| 亚洲男人的天堂成人www| 天堂aⅴ无码一区二区三区| 图片区 小说区 区 亚洲五月| 欧美综合区自拍亚洲综合图| 久久99精品久久久影院老司机| 国产精品熟女高潮视频| 人人妻人人澡人人爽欧美一区| 国产精品v欧美精品∨日韩| 男男gv白嫩小受gv在线播放| 无码av波多野结衣| 国产在线国偷精品免费看| 在线观看国产精品乱码app| 中国女人做爰视频| 午夜无码片在线观看影院y| 欧美变态另类刺激| 国产午夜无码视频免费网站| 97se狠狠狠狼鲁亚洲综合网| 人人爽人人澡人人人妻| 全黄性性激高免费视频| 免费看男女做好爽好硬视频| 15小男生gay自慰脱裤子 | 亚洲综合av一区二区三区不卡| 女女互磨互喷水高潮les呻吟 | 97色伦图片97综合影院| 亚洲国产日韩a在线播放|