Table 3. Some physicochemical properties of CMC and MC.
Compound | Solubility | Viscosity | Electrostatic charge | Flocculating agent | Appearance | Hygroscopicity |
NaCMC | Hot and cold water | 400-800 cPa | Anionic | Yes | White or lightly yellow powder | 80%-85% |
MC | Cold water | 4000 cPb | Neutral | No | White |
NaCMC: sodium carboxymethylcellulose; MC: methylcellulose. * Viscosity of 2%w/v NaCMC in water and 25°C; bViscosity of 0.5-1% w/v MC in water and 25°C.