... polymerization degree. R: -CH3 or -H.2. Specification Methoxylation28.0-32.0%Water≤5%Viscosity (2%,20°C aq. solution), mpa.s5 ... . Odorless, non-toxic, hygroscopic. Density 1.3g/cm, apparent density 0.25-0.7g/cm3, discoloring temperature 190-200°C, carbonizing temperature 225 ... -230°C, surface tension (25°C) 47-53dyn/cm. Technically insoluble in ethanol, ethyl ether ...