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Inorganic Salts

Magnesium Sulphate Heptahydrate AR/ACS

RA000111 CAS 10034-99-8 AR/ACS

Magnesium Sulphate Heptahydrate AR/ACS (CAS 10034-99-8): laboratory reagent of AR/ACS grade from the ReagentAtlas catalogue. Pack sizes: 500 g, 5 kg, 25 kg, 50 kg. Submit your requirement to request a quotation.

Identity

Product code
RA000111
CAS number
10034-99-8
Grade
AR/ACS
Purity
99.5%
Molecular formula
MgSO 4 .7H 2 O
Molecular weight
246.47

Synonyms: Epsom salts

Classification

Technical Data

Physical state
Solid
Shelf life
60 Months
HS code
2833.2100

Properties

PropertyValue
Physical state at 20 °C Solid
pH value 5 - 8 at 50 g/l
Decomposition point [°C] >150°C
Vapour pressure [20°C] < 0.133 hPa at 20 °C
Density [g/cm3] 1.678
Solubility in water [% weight] 246.48 g/l at 20 °C - completely soluble

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

Specifications

ParameterSpecification
Appearance Colorless crystals or a white, crystalline powder
Assay 99.5 - 102%
Insoluble matter in water Max 0.005%
pH (5% solution in water) 5 - 7
Nitrate (NO3) Max 0.002%
Ammonium (NH4) Max 0.002%
Chloride (Cl) Max 0.0005%
Calcium (Ca) Max 0.02%
Heavy metals (ICP-OES method) Max 0.0005%
Iron (Fe) Max 0.0005%
Potassium (K) Max 0.005%
Manganese (Mn) Max 0.0005%
Sodium (Na) Max 0.005%
Strontium (Sr) Max 0.005%

Method names in parentheses (for example "GC method") identify the analytical technique applied to that parameter; they are not product grades. Grade of this product: AR/ACS.

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

Packaging

Pack size SKU
500 g RA000111-500G
5 kg RA000111-5KG
25 kg RA000111-25KG
50 kg RA000111-50KG