Zinc sulphate heptahydrate Ph. Eur., USP
Supplier: VWR Chemicals
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Danger
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VWRC29158.294EA
51.1
SGD
VWRC29158.294
VWRC29158.363
Zinc sulphate heptahydrate Ph. Eur., USP
Zinc sulphate heptahydrate
Appearance: White or almost white, crystalline powder or colourless, transparent crystals, efflorescent.
Caution: Not for use as Active Pharmaceutical Ingredient (API)
Formula:
ZnSO₄·7H₂O MW: 287,54 g/mol Melting Pt: 100 °C Density: 1,97 g/cm³ (20 °C) Storage Temperature: Ambient |
MDL Number:
MFCD00149894 CAS Number: 7446-20-0 EINECS: 231-793-3 UN: 3077 ADR: 9,III Merck Index: 12,10293 |
Specification Test Results
Appearance | Conforms (see CoA/CoS) |
Residual solvents | Unlikely by manuf.process |
Cd (Cadmium) | Max. 1 ppm |
Co (Cobalt) | Max. 1 ppm |
Hg (Mercury) | Max. 3 ppm |
Ni (Nickel) | Max. 3 ppm |
V (Vanadium) | Max. 1 ppm |
Conforms to Ph.Eur./USP | Passes test |
Ph.Eur. specifications: | Max. 100 ppm |
Assay [Ph.Eur.] | 99.0 --> 104.0 % |
Identification A | Passes test USP |
Identification B | Passes test USP |
Identification C | Passes test Ph.Eur. |
Appearance of solution | Passes test Ph.Eur. |
pH (5 %) [Ph.Eur.] | 4.4 --> 5.6 |
Cl (Chloride) [Ph.Eur.] | Max. 300 ppm |
Fe (Iron) [Ph.Eur.] | Max. 100 ppm |
USP specifications: | |
Assay [USP] | 99.0 --> 108.7 % |
As (Arsenic) [USP] | Max. 14 ppm |
Pb (Lead) [USP] | Max. 20 ppm |
Alkalies and alkaline earths [USP] | Max. 0.9 % |
Acidity | Passes test USP |
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