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Identification | ||
Nom | Sulfate d'aluminium et d'ammonium dodécahydraté | |
Formule moléculaire | AlNH 4 (SO 4 ) 2 12(H 2 O) | |
Poids moléculaire | 453.33 | |
Numéro de registre CAS | 7784-26-1 |
Propriétés | |
Densité | 1.64 |
Point de fusion | 93.5 ºC |
Point d'ébullition | 200 ºC |
Tests | Spécification | Résultats |
Apparence | Poudre blanche | Poudre blanche |
Matière insoluble dans l'eau | ≤0.2% | 0.05% |
F | ≤ 30 ppm | 18ppm |
Comme | ≤ 2 ppm | 1ppm |
Métal lourd (Pb) | ≤ 20 ppm | 9ppm |
Pb | ≤10 ppm | 6ppm |
Se | ≤ 30 ppm | 16ppm |
Humidité | ≤4.0% | 3.72% |
Dosage de NH4Al(SO4)2·12H2O | 99.5%~100.5% | 99.8% |
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