Pluronic® F-68 (PE 6800)
F68; Poloxamer 188; Polyoxyethylene-polyoxypropylene block copolymer; Pluronic PE 6800
Cell membrane stabilizer; anti-foaming agent. Pluronic® PE 6800 is a low-foaming, nonionic surfactant. It is a block copolymer in which the central polypropylene glycol group is flanked by two polyethylene glycol groups.
Synonyms
F68; Poloxamer 188; Polyoxyethylene-polyoxypropylene block copolymer; Pluronic PE 6800
Molecular Formula
(C3H6O.C2H4O)x
Appearance
White to off-white powder or flakes
Identity (IR)
Conforms to structure
Pluronic® PE 6800 Value Physical form (23 °C) Powder Molar mass (OH number) ~8000g/mol Concentration ~100% Cloud point (EN 1890) Method A >100°C Method B ~88°C Method C ~72°C Method D ~90°C Method E ~95°C pH-value (EN 1262, Solution B) ~7 Density (DIN 51757, Method A, 70 °C) ~1.06g/cm3 Bulk Density (ISO 697) ~600g/L Melting Point ~48°C Wetting (EN 1772, 23°C, 2g/L soda ash, 1g/L surfactant) >300 Surface Tension (EN 14370, 1g/L, 23°C) ~51mN/m Circulation Foam (EN 14371, 0.1g/L, 25°C) 1 min 870ml 10 min 1350ml 5 min. after pumping stopped 1190ml HLB****
Storage and Stability
Store at 4ºC. Stable for 12 months after receipt. Pluronic® PE 6800 should be kept tightly sealed in a dry place in its tightly sealed original packaging. Storerooms must not be overheated. Pluronic® PE 6800 is hygroscopic and soluble in water, with the result that it absorbs moisture very quickly. Drums should be t ightly resealed each time material is taken from them. Pluronic® PE 6800 should be stored in a dry place at a temperature not exceeding 25-30°C. It must be protected from sunlight to ensure that it does not form lumps.
Important Note
This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.
Toxicity and Hazards
All products should be handled by qualified personnel only, trained in laboratory procedures.
