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TWEEN ® 20

TWEEN® 20
产品编号:4081655
规格:for synthesis
CAS NO:9005-64-5
包装规格:500 ML,1 L,2.5 L
产品类别:进口试剂
品牌:Sigma-Aldrich
优惠价:立即咨询
产品编号包装单位单价(元)国内现货国外库存询价单
4081655500 ML697
40816551 L834
40816552.5 L940
产品别名

9005-64-5

TWEEN ® 20

TWEEN® 20

Polyethylene glycol sorbitan monolaurate

Polyoxyethylenesorbitan monolaurate

聚氧乙烯脱水山梨醇单月桂酸酯

聚氧乙烯山梨糖醇酐单月桂酸酯

结构式
基本信息
MDL number
MFCD00165986
EC Index Number【EC索引号】
500-018-3
General description【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.

Application【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. 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).
Tween®-20 can also be used as an emulsifying, solubilizing, and wetting agent in a variety of liquid formulations.
非离子洗涤剂
Analysis Note【分析说明】
Density (d 20 °C/ 4 °C): 1.095 - 1.105
Hydroxyl value: 96 - 108
Saponification value: 40 - 50
Identity (IR): passes test
Due to its specific melting range the product may be solid, liquid, a solidified melt or a supercooled melt.
Legal Information【法律信息】
TWEEN is a registered trademark of Croda International PLC
产品性质
Quality Level【质量水平】
200
vapor pressure【蒸汽压】
<1.4 hPa ( 20 ℃)
form【形式】
liquid
potency【效能】
38900 mg/kg LD50, oral (Rat)
mol wt【分子量】
~1228
refractive index【折射率】
n20/D 1.468 (lit.)
pH【pH值(酸碱度)】
6-8 (20 ℃, 50 g/L in H2O)
transition temp【转变温度】
flash point 275 ℃
density
1.095 g/mL at 25 ℃ (lit.)
storage temp.【储存温度】
2-30℃
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
安全信息
Storage Class Code【储存分类代码】
10 - Combustible liquids
WGK
WGK 1
Flash Point(F)【闪点(F)】
527.0 °F - Pensky-Martens closed cup
Flash Point(C)【闪点(C)】
275 ℃ - Pensky-Martens closed cup
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