Urée 99.5-100.5%, AnalaR NORMAPUR® ACS, Reag. Ph. Eur. pour analyses
Marques : VWR ChemicalsTotal Evaluation: 0
Moyenne des Notes : 0.0 sur 5
Formule:
NH₂CONH₂ Point d'ébullition: 197 °C (1013 hPa) Point de fusion: 132,7 °C Densité: 1.34 g/cm³ (20 °C) Température de stockage: Température ambiante |
Numéro MDL:
MFCD00008022 Numéro CAS: 57-13-6 EINECS: 200-315-5 REACH: 01-2119463277-33 Indice Merck: 13,09935 |
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Résultats des tests de spécification
Assay | 99.5 - 100.5 % |
Appearance of solution (10 %; water) | Clear and colourless |
IR Spectrum | Passes test |
Acidity | Max. 0.0005 meq/g |
Alkalinity | Max. 0.0005 meq/g |
Melting point | 132 - 135 °C |
Biuret | Max. 0,1% |
Heavy metals (as Pb) | Max. 4 ppm |
Ignition residue (SO4) | Max. 50 ppm |
Insolubility in water | Max. 30 ppm |
Loss on drying (100-105°C) | Max. 1.0 % |
Cl (Chloride) | Max. 5 ppm |
NH4 (Ammonium) | Max. 0.05 % |
SO4 (Sulphate) | Max. 10 ppm |
Cu (Copper) | Max. 1 ppm |
Fe (Iron) | Max. 1 ppm |
Pb (Lead) | Max. 2 ppm |
Conforms to ACS | Passes test |
Conforms to Reag. Ph.Eur. | Passes test |
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