Carboxymethyl cellulose sodium salt, M.W. ∼ 90000 (DS=0.7)
: Carboxymethyl cellulose, sodium salt, Cellulose gum, Cellulose, carboxymethyl ether, sodium salt, Sodium carboxymethyl cellulose (Viscosity 800mpa.s), Sodium carboxymethyl cellulose, CMC
:9004-32-4
:
:[C₆H₇O₂(OH)x(OCH₂COONa)y]n
:MFCD00081472
:>300 °C
:Ambient
- Environmentally Preferable:
- Appearance:White to light yellow Granular powder
- Infrared spectrum:Conforms
- Assay:≥99.5 %
- Loss on drying:≤10 % (As packed) (3 to 5 g, 105°C, 2 h)
- Heavy metals:≤20 ppm
- Degree of substitution:0.65 to 0.90
- Viscosity:50 to 100 mPa.s (2 % at 25°C) (Brookfield)
- pH:6.5 to 8 (1 % solution)
- Sodium chloride (NaCl):≤0.25 %
- Arsenic (As):≤3 ppm
- Cadmium (Cd):≤1 ppm
- Lead (Pb):≤10 ppm
- Mercury (Hg):≤1 ppm
- Impurity:≤0.4 % (Sodium glycolate)
- Pack typePk