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Inorganic Salts

Zinc Sulphate Heptahydrate Extra Pure

RA002741 CAS 7446-20-0 Extra Pure

Identity

Product code
RA002741
CAS number
7446-20-0
Grade
Extra Pure
Purity
99%
Molecular formula
ZnSO4.7H2O
Molecular weight
287.54

Classification

Technical Data

Properties

PropertyValueUnit
Physical state at 20 °C Solid —
Colour White crystalline —
Odour Odorless —
pH value 4 - 6 —
Melting point/ Freezing point [°C] 100 °C °C
Density [g/cm3] 1.97 g/cm3 g/cm3
Solubility in water [% weight] Soluble in water —

These are recorded catalogue property values. Product specification limits, where available, are listed under Specifications.

Specifications

ParameterSpecificationUnit
Appearance White crystalline powder —
Assay Min 99 % %
Chloride (Cl) Max 0.002 % %
Iron (Fe) Max 0.005 % %
Lead (Pb) Max 0.005 % %

5 grades of this substance are listed. Each grade is a separate product with its own specifications, pack sizes and documents.

Packaging

Pack size SKU
25 kg RA002741-PK-25KG
500 g RA002741-PK-500G
50 kg RA002741-PK-50KG
1 kg RA002741-PK-1KG
5 kg RA002741-PK-5KG