Sodium sulfate, anhydre 98.5-101.0%, AnalaR NORMAPUR® Réactif Ph. Eur. pour analyses
Marques : VWR ChemicalsTotal Evaluation: 0
Moyenne des Notes : 0.0 sur 5
Synonyme(s):
Sulfate de sodium
Formule:
Na₂SO₄ Poids moléculaire: 142,04 g/mol Point d'ébullition: 1429 °C (1013 hPa) Point de fusion: 888 °C Densité: 2,7 g/cm³ (20 °C) Température de stockage: Température ambiante |
Numéro MDL:
MFCD00003504 Numéro CAS: 7757-82-6 EINECS: 231-820-9 Indice Merck: 12,08829 |
Résultats des tests de spécification
Assay (dried substance) | 98.5 - 101.0 % |
Acidity or alkalinity | Passes test |
Appearance of solution | Passes test |
Identification (SO4) | Passes test |
Identification (Na) | Passes test |
pH (25°C; 5 %) | 5.2 - 8.0 |
Heavy metals (as Pb) | Max. 5 ppm |
Insolubility in water | Max. 100 ppm |
Loss on drying (130°C) | Max. 0.5 % |
Loss on ignition (800°C) | Max. 0.5 % |
Cl (Chloride) | Max. 100 ppm |
PO4 (Phosphate) | Max. 10 ppm |
Total N (Nitrogen) | Max. 5 ppm |
As (Arsenic) | Max. 1 ppm |
Ca (Calcium) | Max. 50 ppm |
Fe (Iron) | Max. 5 ppm |
K (Potassium) | Max. 50 ppm |
Mg (Magnesium) | Max. 25 ppm |
Conforms to Reag. Ph.Eur. | Passes test |
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