Carboxyméthylcellulose, sel de sodium, M.W. ∼ 90000 (DS=0.7)
Marques : Thermo Fisher ScientificTotal Evaluation: 0
Moyenne des Notes : 0.0 sur 5
Synonyme(s):
Carboxymethyl cellulose, sodium salt, Cellulose gum, Cellulose, carboxymethyl ether, sodium salt, Sodium carboxymethyl cellulose (Viscosity 800mpa.s), Sodium carboxymethyl cellulose, CMC
Formule:
[C₆H₇O₂(OH)x(OCH₂COONa)y]n Point de fusion: >300 °C Température de stockage: Température ambiante |
Numéro MDL:
MFCD00081472 Numéro CAS: 9004-32-4 |
Résultats des tests de spécification
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) |
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