Carboxymethylcellulose Natriumsalz, M.W. ∼ 700000 (DS=0.9)
Lieferant: Thermo Scientific
ACRO332640010EA
130
EUR
ACRO332640010
ACRO332641000
Carboxymethylcellulose Natriumsalz, M.W. ∼ 700000 (DS=0.9)
Carboxymethyl cellulose sodium salt
Formel:
[C₆H₇O₂(OH)x(OCH₂COONa)y]n Schmelzpunkt: >300 °C Lagertemperatur: Raumtemperatur |
MDL:
MFCD00081472 CAS-Nummer: 9004-32-4 |
Spezifikation Testergebnisse
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 |
Additional info | degree of substitution: 0.80 to 0.95 |
Degree of substitution | 0.80 to 0.95 |
Viscosity | 2500 to 4500 mPa.s (1 % 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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