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Polysorbate 20

Basic information Description References Safety Supplier Related

Polysorbate 20 Basic information

Product Name:
Polysorbate 20
Synonyms:
  • Polisorbate 20- PS 20
  • Tween 20 (Trademark of ICI America, Inc.)
  • Tween 20 
  • Tween 20 1LT
  • Twain 20
  • TWEEN(R) 20 Vetec(TM) reagent grade, 40%
  • ACRYL/BIS 37.5:1 PREMIXED PWD ULTRA PURE
  • TWEEN 20 ELECTROPHORESIS GRADE
CAS:
9005-64-5
MF:
C26H50O10
MW:
522.6692
EINECS:
500-018-3
Product Categories:
  • detergent
  • Functional Materials
  • Nonionic Surfactants
  • Surfactants
  • Alphabetical Listings
  • Flavors and Fragrances
  • Ester Ether Type (Surfactants)
  • Biochemistry
  • Nonionic Surfactants (for Biochemistry)
  • Surfactants (for Biochemistry)
  • O-P
  • 9005-64-5
Mol File:
9005-64-5.mol
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Polysorbate 20 Chemical Properties

Melting point:
98.9 °C (decomp)
Boiling point:
100 °C
Density 
1.11 g/mL at 20 °C
vapor pressure 
<1.4 hPa (20 °C)
FEMA 
2915 | POLYSORBATE 20
refractive index 
n20/D 1.468(lit.)
Flash point:
>230 °F
storage temp. 
Store below +30°C.
solubility 
100 g/L
form 
viscous liquid
color 
Amber
Specific Gravity
1.090~1.130 (20/20℃)
PH
6-8 (50g/l, H2O, 20℃)
PH Range
7
Odor
mild alcohol odor
Odor Type
alcoholic
Water Solubility 
100 g/L
Hydrophilic-Lipophilic Balance (HLB)
16.7
Stability:
Stable. Incompatible with strong oxidizing agents.
EPA Substance Registry System
Polysorbate 20 (9005-64-5)
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Safety Information

Hazard Codes 
Xi
Risk Statements 
22-36/37/38-37/38-41
Safety Statements 
24/25-36/37/39-36-26
WGK Germany 
1
RTECS 
TR7400000
10-23
TSCA 
Yes
HS Code 
34021300
Hazardous Substances Data
9005-64-5(Hazardous Substances Data)
Toxicity
LD50 orally in Rabbit: 38900 mg/kg

MSDS

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Polysorbate 20 Usage And Synthesis

Description

Tween 20, whose common commercial names includes Alkest TW 20 and Polysorbate 20, is a mild nonionic surfactant formed by the ethoxylation of sorbitan before the addition of lauric acid which is a medium-chain fatty acid found mainly in coconut oil. It is allowed to be used as the emulsifier, detergent, dispersant, solvent and stabilizer, etc. in a number of fields such as pharmaceutical, chemical, food, textile and other industries due to its stability and relative non-toxicity.
Tween 20 is widely applied in biological techniques and sciences, which can be added to buffers and reagents for immunohistochemistry, such as Western blots and ELISAs, helping to prevent non-specific antibody binding, decrease background staining and enhance reagent spreading. Besides, Tween 20 also has applications in food production as a common food grade additive which are found in many consumables on the market today. It can also be used as a wetting agent in flavored mouth drops such as Ice Drops, in oral or non-gastrointestinal suspensions and in rubber balers in the elastomer industry.

References

https://en.wikipedia.org/wiki/Polysorbate_20
http://www.organic-creations.com/thickeners-stabilizers/599-polysorbate-20

Chemical Properties

Polysorbate 20 is a mixture of laurate partial esters of sorbitol and sorbitol anhydrides condensed with approximately 20 mole of ethylene oxide (C2H4O) for each mole of sorbitol and its mono- and dianhydrides. It has a faint, characteristic odor and a warm, somewhat bitter taste.

Chemical Properties

Yellow liquid

Uses

Used for solubilizing membrane proteins during isolation and purification.Polysorbate 20 is used as a wetting agent in flavored mouth drops. It acts as a washing agent in Western blots and ELISAs and prevents antibody binding. It is a solubilizing agent of membrane proteins. In pharmaceutical chemistry, it is used as an excipient to stabilize emulsions and suspensions. Further, it is used as a dispersing agent, stabilizer, lubricator and also used in creams, salves, ointments, protective creams, balms, pomades, lipsticks, mascaras and glosses.

Uses

polysorbate 20 is a solubilizer, emulsifier, viscosity modifier, and stabilizer of essential oils in water.

Preparation

polysorbate 20 is prepared by condensing the partial esters of sorbitol and its anhydrides with ethylene oxide to effect an oxyethylene copolymerization at the free hydroxyl groups.

Definition

ChEBI: Polysorbate 20 (Tween 20) is a polymer composed of PEG-ylated sorbitan, where the total number of poly(ethylene glycol) units is 20 (w + x + y + z = 20) and a single terminal is capped by a dodecanoyl group. It is a surfactant and emulsifier used in cleaners and personal care products.

brand name

Tween 20 (ICI Americas).

General Description

Polysorbate 20 is a hydrophilic nonionic surfactant generally used as emulsifiers, dispersing agent and solubilizer.

Health effects

Polysorbate 20 was a skin irritant in dermatitis patients but was reported not to induce irritant responses when applied to the intact skin of health volunteers. It produced, at worst, minimal irritation in the eyes of rabbits. Only a small number of cases of skin sensitization have been reported in humans, although a moderate to strong sensitizing potential was seen in guinea-pigs treated by intradermal injection.

Flammability and Explosibility

Non flammable

Safety Profile

Moderately toxic by intravenous route. Mddly toxic by ingestion. A human skin irritant. When heated to decomposition it emits acrid smoke and irritating fumes.

Polysorbate 20 Preparation Products And Raw materials

Raw materials

Polysorbate 20Supplier

Guangdong Huana Chemistry Co.,Ltd. Gold
Tel
020-36293412 18127916085
Email
bonnie@gdrunhua.com
Products Intro
Product Name:polysorbate 20
CAS:9005-64-5
Purity:99.99% Package:25kg/RMB 30
Shanghai Aladdin Bio-Chem Technology Co.,LTD Gold
Tel
400-6206333 18521732826;
Email
market@aladdin-e.com
Products Intro
Product Name:Tween 20
CAS:9005-64-5
Purity:CP Package:769RMB/5L
Hefei Bomei Biotechnology Co., Ltd. Gold
Tel
13739298932
Email
531626407@qq.com
Products Intro
Product Name:Tween-20
CAS:9005-64-5
Purity:100ml 500ml Package:100ml 500ml:35.00 145.00
JiangSu Star Science Co.,Ltd Gold
Tel
400-605-7200 17312445705
Email
sales022@b2star.com
Products Intro
Product Name:Vetec, reagent grade, 40%
CAS:9005-64-5
Purity:99% Package:10g; 100g;500g;1kg;5KG;10KG
hebei crovell biotech Co,.LTD Gold
Tel
19930503252
Email
mia@crovellbio.com
Products Intro
Product Name:Polysorbate 20
CAS:9005-64-5
Purity:99% Package:200K