Acide L(+)-ascorbique 99.0-100.5%, AnalaR NORMAPUR® pour analyses
Fournisseur: VWR Chemicals
20150.184EA
42.5
EUR
20150.184
20150.231
20150.290
Acide L(+)-ascorbique 99.0-100.5%, AnalaR NORMAPUR® pour analyses
Acide L(+)-ascorbique
Formule:
C₆H₈O₆ Point d'ébullition: 553 °C (1013 hPa) Point de fusion: 190…192 °C Densité: 1.694 g/cm³ (20 °C) Température de stockage: Température ambiante |
Numéro MDL:
MFCD00064328 Numéro CAS: 50-81-7 EINECS: 200-066-2 Merck Index: 13,00837 |
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Résultats des tests de spécification
Assay | 99.0 - 100.5 % |
Colour of solution (50 g/l; water) |
|
Melting point | 182 - 192 °C |
Specific optical rotation (10 %; water) | 20.5 - 21.5 ° |
Spec. optical rotation (25°C;10 %;water) | 20.5 - 21.5 ° |
Heavy metals (as Pb) | Max. 10 ppm |
Ignition residue (SO4) | Max. 0.05 % |
Loss on drying (105°C) | Max. 0.1 % |
Cl (Chloride) | Max. 20 ppm |
SO4 (Sulphate) | Max. 20 ppm |
Ca (Calcium) | Max. 50 ppm |
Cu (Copper) | Max. 10 ppm |
Fe (Iron) | Max. 2 ppm |
Pb (Lead) | Max. 10 ppm |
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