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

CAS Number:
9003-11-6

Molecular Formula:
(C3H6O.C2H4O)x

Appearance:
White to off-white powder or flakes

Identity (IR):
Conforms to structure

Heavy Metals:
≤0.002%

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.