... to environment Main Property: pH (1% in Water Solution): 6.0 - 12.0 2% Viscosity (Brookfield LVDVE, 25°C, Spindle 1, 60 ... Degree of Substitution: 0.5-0.7 Purity (on Dry-basis), %: 60.0 min. Moisture Content, %: 10 .0 max. Particle Size. %: 99.0 min. pass through 80 ...