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Sulfat de zinc heptahidrat p.a.

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Descriere
Nr. CAS: 7446-20-0

Nr. EC: 231-793-3

Nr index: 030-006-00-9

Formula moleculara: ZnSO4 * 7 H2O

Masa moleculara (g/mol): 287.54

Densitate (g/l): 1.97 g/cm3 (20 C)

ADR/RID: 9, III UN: 3077

Cuvant de avertizare: pericol

Fraze de hazard (H): H 302, 318, 410

Fraze de preventie (P): P 280, 273, 305+351+338

Categorie de pericol: nociv, iritant, periculos pentru mediu

Fraze de risc (R): R 22-41-50/53

Fraze se securitate (S): S (2)-22-26-39-46-60-61

Continut (%): min 99

Substante insolubile: max. 0,005%, in apa

Cloruri (ppm): max 50

Fer (ppm): max 50

Metale grele (ppm): max 50 (Pb)

pH: 4,4 - 6 sol 5% in apa
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