Zinc sulphate heptahydrate Ph. Eur., USP

Supplier: VWR Chemicals

29158.294EA 190 EUR
29158.294 29158.363
Zinc sulphate heptahydrate Ph. Eur., USP
Zinc sulphate heptahydrate

Appearance: White or almost white, crystalline powder or colourless, transparent crystals, efflorescent.


Upozornení: 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)
MDL Number: MFCD00149894
UN: 3077
ADR: 9,III
Merck Index: 12,10293

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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:
Assay [Ph.Eur.] 99.0 --> 104.0 %
Identification A Passes test Ph.Eur.
Identification B Passes test Ph.Eur.
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 %
Identification A Passes test USP
Identification B Passes test USP
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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