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Laprol-503B

Laprol 503 B is a polyether, produced by alcoholate polymerization of propylene oxide and glycerine. It is used in the production of polyurethane foams.

MAIN QUALITY CHARACTERISTICS
Appearance
a transparent liquid with colour range from colorless to dark-yellow
Hydroxyl number, mg KOH/g
320-360
Acid number, mg KOH/g, max.
0.50
pH
5.5-7.5
Water content, %, max.
0.15
Dynamic viscosity at 25 °C, mPa.s
250-350
Color, iodine scale, mg I2, not darker
20


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