Carboxymethyl cellulose sodium salt, M.W. ∼ 250000 (DS=1.2)
:9004-32-4
:
:[C₆H₇O₂(OH)x(OCH₂COONa)y]n
:MFCD00081472
:>300 °C
:Ambient
- Appearance:White to light beige Crystalline 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:1.15 to 1.45
- Viscosity:1500 to 3100 mPa.s (2 % at 25°C) (Brookfield)
- pH:6.5 to 8 (1 % solution)
- Arsenic (As):≤3 ppm
- Lead (Pb):≤10 ppm
- Pack typePk