Zinc sulfate heptahydraté 99.5% pour analyses
Marques : Thermo Fisher ScientificTotal Evaluation: 0
Moyenne des Notes : 0.0 sur 5
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Danger
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Formule:
ZnSO₄·7H₂O Point de fusion: 100 °C Densité: 1,97 g/cm³ (20 °C) Température de stockage: Température ambiante |
Numéro MDL:
MFCD00149894 Numéro CAS: 7446-20-0 EINECS: 231-793-3 UN: 3077 ADR: 9,III Indice Merck: 12,10293 |
Résultats des tests de spécification
Appearance | White Crystalline powder or crystals and/or chunks |
Titration Complexometric | ≥99.4 % |
pH | 4.4 to 6.0 (5 % at 25°C) |
Chloride (Cl) | ≤5 ppm |
Arsenic (As) | ≤1 ppm |
Iron (Fe) | ≤10 ppm |
Lead (Pb) | ≤10 ppm |
Manganese (Mn) | ≤3 ppm |
Potassium (K) | ≤10 ppm |
Sodium (Na) | ≤10 ppm |
Nitrogen compounds (as N) | ≤0.002 % |
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