... Grade- Purity (dry basis): 55.0 -80.0% min (according to request)- Substitution: 0.5- 0.8- PH value: 8-11.5- Moisture: 10% max- Viscosity ... , mPa. 2%solution, 25: 6-300mPa.s (according to ... request)- Degree of Substitution(D.S): 0.7-0.9- PH value(1% Soln): 6.0-8.5- Moisture,%: 10.0 max- Viscosity, mpa.s (1 ...