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Key Documents

P6585

Sigma-Aldrich

TWEEN® 20

Low-peroxide; Low-carbonyls

Sinonimo/i:

Monolaurato di polietilenglicole sorbitano, Monolaurato di poliossietilene sorbitano

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About This Item

Numero CAS:
Numero MDL:
Codice UNSPSC:
12161900
NACRES:
NA.21

Livello qualitativo

Descrizione

non-ionic

Forma fisica

viscous liquid

PM

~1228

contiene

BHT as antioxidant

Impurezze

≤0.5 μmol/g Peroxides
≤1.0 μmol/g Carbonyls
≤3.0% water

Indice di rifrazione

n20/D 1.468 (lit.)

CMC

0.06 mM (20-25°C)

Temp. transizione

cloud point 76 °C

Densità

1.095 g/mL at 25 °C (lit.)
1.1 g/cm3 at 25 °C (lit.)

HLB

16.7

Temperatura di conservazione

2-8°C

Stringa SMILE

CCCCCCCCCCCC(=O)OCCOCC(C1C(C(CO1)OCCO)OCCO)OCCO

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
HMFKFHLTUCJZJO-UHFFFAOYSA-N

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Descrizione generale

Tween®20 is a polyoxyethylene sorbitol ester that belongs to the polysorbate family. It is a nonionic detergent having a molecular weight of 1,225 daltons, assuming 20 ethylene oxide units, 1 sorbitol, and 1 lauric acid as the primary fatty acid. The ethylene oxide subunits are responsible for the hydrophilic nature of the surfactant, while the hydrocarbon chains provide the hydrophobic environment. Sorbitol forms the backbone ring to which the ethylene oxide polymers are attached.

Applicazioni

Tween 20 has been used along with PBS to wash plates in ELISA technique.
Detergente non ionico

Nota sulla preparazione

Purified to remove peroxides and aldehydes

Note legali

TWEEN is a registered trademark of Croda International PLC

Codice della classe di stoccaggio

10 - Combustible liquids

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

527.0 °F - Pensky-Martens closed cup

Punto d’infiammabilità (°C)

275 °C - Pensky-Martens closed cup

Dispositivi di protezione individuale

Eyeshields, Gloves


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