Merck
All Photos(1)

8.22184

Sigma-Aldrich

TWEEN ® 20

for synthesis

Synonym(s):
聚氧乙烯山梨糖醇酐单月桂酸酯, 聚氧乙烯脱水山梨醇单月桂酸酯
CAS Number:
MDL编号:
EC索引号:
500-018-3

蒸汽压

<1.4 hPa ( 20 °C)

质量水平

200

形式

liquid

效能

38900 mg/kg LD50, oral (Rat)

分子量

~1228

折射率

n20/D 1.468 (lit.)

pH值(酸碱度)

6-8 (20 °C, 50 g/L in H2O)

转变温度

flash point 275 °C

密度

1.095 g/mL at 25 °C (lit.)

储存温度

2-30°C

InChI

1S/C26H50O10/c1-2-3-4-5-6-7-8-9-10-11-24(30)34-19-18-31-20-22(32-15-12-27)26-25(35-17-14-29)23(21-36-26)33-16-13-28/h22-23,25-29H,2-21H2,1H3

InChI key

HMFKFHLTUCJZJO-UHFFFAOYSA-N

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一般描述

Tween®-20 is a polysorbate-based non-ionic surfactant. It is made up of three chemical units:
  • aliphatic ester chains that hinder biomolecules from nonspecific interactions
  • aliphatic chain that can be non-covalently adsorbed on a hydrophobic surface
  • hydrophilic terminal hydroxyl groups, which can be chemically modified for potential applications.[1]

应用

Tween®-20 can be used as a structure-directing agent in the preparation of mesoporous oxide films because of its ability to promote textural properties of the films such as controllable crystallinity, film morphology, tailor-designed pore structure, high BET surface area, and controlled film thickness.[1][2] It is also used in the synthesis of AuNPs/TWEEN/GO composites, where Tween®-20 acts as a reducing and immobilizing agent for AuNPs (Au nanoparticles) as well as a stabilizing agent for GO (graphene oxide).[3]
Tween®-20 can also be used as an emulsifying, solubilizing, and wetting agent in a variety of liquid formulations.[4][5][6]
非离子洗涤剂

包装

1, 2.5 l in Plastic bottle
50, 500 ml in Plastic bottle

分析说明

密度(d 20 °C/4 °C):1.095 - 1.105
羟值:96 - 108
皂化值:40 - 50
鉴别(IR):符合检验
由于其特定的熔程,产物可以是固体、液体、固化熔体或过冷熔体。

法律信息

TWEEN is a registered trademark of Croda International PLC

储存分类代码

10 - Combustible liquids

WGK

WGK 1

闪点(F)

527.0 °F - Pensky-Martens closed cup

闪点(C)

275 °C - Pensky-Martens closed cup

Certificate of Analysis

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