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412325

Sigma-Aldrich

Poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol)

average Mn ~8,400

Synonym(s):

Pluronic® F-68 LF Pastille, PEG-PPG-PEG

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About This Item

CAS Number:
9003-11-6
MDL number:
MFCD00082049
UNSPSC Code:
12352112
PubChem Substance ID:
24865804
NACRES:
NA.23

vapor density

>1 (vs air)

vapor pressure

<0.3 mmHg ( 20 °C)

form

beads

mol wt

average Mn ~8,400

composition

PEG, 80 wt. %

surface tension

50 dyn/cm, 25 °C, 0.1 wt. % in H2O

viscosity

1,000 cP(77 °C, Brookfield)(lit.)

transition temp

cloud point >100 °C (1 wt. % aqueous solution)
Tm 52 °C

density

1.06 g/mL at 25 °C

HLB

>24.0

InChI

1S/C3H6O.C2H4O/c1-3-2-4-3;1-2-3-1/h3H,2H2,1H3;1-2H2

InChI key

RVGRUAULSDPKGF-UHFFFAOYSA-N

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Application

Hard and soft surface cleaners, defoamers in coatings and water treatment. Lubricant in metal working, anti-foaming aid and extender for linear and cross-linked polyesters and polyurethanes.

Features and Benefits

Surface active material whose properties are dependent on the hydrophilic (EO)/hydrophobic (PO) ratio. High EO content gives better o/w stabilizers.

Physical form

Terminal primary dihydroxy-functional oligomer.

Legal Information

Pluronic is a registered trademark of BASF

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Sean P Cleary et al.
The Analyst, 145(13), 4688-4697 (2020-05-28)
Native electrospray mass spectrometry is a powerful method for determining the native stoichiometry of many polydisperse multi-subunit biological complexes, including multi-subunit protein complexes and lipid-bound transmembrane proteins. However, when polydispersity results from incorporation of multiple copies of two or more
A N Sklifas et al.
Biofizika, 57(2), 317-324 (2012-05-19)
The adsorption abilities of the perfluorocarbon emulsion stabilized by Proxanol 268 were investigated in vitro and in vivo. In vitro, the saturation point for the blood plasma proteins was nearly reached after five minutes of incubation of the emulsion with
Houjian Gong et al.
Langmuir : the ACS journal of surfaces and colloids, 28(38), 13590-13600 (2012-09-08)
The block polyethers PEO-PPO-ph-PPO-PEO (BPE) and PPO-PEO-ph-PEO-PPO (BEP) are synthesized by anionic polymerization using bisphenol A as initiator. Compared with Pluronic P123, the aggregation behaviors of BPE and BEP at an air/water interface are investigated by the surface tension and
Mi Mi Wan et al.
Journal of colloid and interface science, 377(1), 497-503 (2012-04-18)
New concept on the promotion of immobilization and catalytic activity of enzyme on mesoporous silica through template micelles is proposed and realized in this paper. Proper P123 templates are controllable retained in the as-synthesized SBA-15, not only to anchor the
Wanhua Feng et al.
Colloids and surfaces. B, Biointerfaces, 105, 43-50 (2013-01-29)
The interaction between bacteria and surfaces is central to many environmental, industrial and medical applications. Surfactants are commonly used in these applications and can potentially influence the bacterium/surface interaction. The effect of surfactants upon bacterial cell surface thermodynamic properties was
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