Carboxymethyl cellulose sodium salt, M.W. ∼ 250000 (DS=0.9)
Leverantör: Thermo Scientific
Synonyms:
Carboxymethyl cellulose, sodium salt, Cellulose gum, Cellulose, carboxymethyl ether, sodium salt, Sodium carboxymethyl cellulose (Viscosity 800mpa.s), Sodium carboxymethyl cellulose, CMC
332620010
332621000
ACRO332620010EA
2375
SEK
ACRO332620010
ACRO332621000
Carboxymethyl cellulose sodium salt, M.W. ∼ 250000 (DS=0.9)
Carboxymethyl cellulose sodium salt
Formel:
[C₆H₇O₂(OH)x(OCH₂COONa)y]n Smältpunkt: >300 °C Storage Temperature: Omgivande |
MDL Number:
MFCD00081472 CAS nummer: 9004-32-4 |
Specifikation testresultat
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 | ≤10 ppm |
Degree of substitution | 0.80 to 0.95 |
Viscosity | 1500 to 3100 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) | ≤3 ppm |
Mercury (Hg) | ≤1 ppm |
Impurity | ≤0.4 % (Sodium glycolate) |
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