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Inorganic Salts

Zinc Sulphate Heptahydrate AR/ACS

RA002742 CAS 7446-20-0 AR/ACS

Identity

Product code
RA002742
CAS number
7446-20-0
Grade
AR/ACS
Purity
99.0%
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 Method
Appearance White crystalline powder — —
Sodium (Na) Max 0.05 % % —
Ammonium (NH4) Max 0.001 % % —
Nitrate (NO3) Max 0.002 % % —
Manganese (Mn) Max 0.0003 % % —
Lead (Pb) Max 0.003 % % —
Assay 99.0 - 103.0 % % complexometric
Insoluble matter Max 0.01 % % —
Chloride (Cl) Max 0.0005 % % —
Calcium (Ca) Max 0.005 % % —
Iron (Fe) Max 0.001 % % —
Potassium (K) Max 0.01 % % —
Magnesium (Mg) 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 RA002742-PK-25KG
500 g RA002742-PK-500G
50 kg RA002742-PK-50KG
5 kg RA002742-PK-5KG