Magnesium Sulfate Heptahydrate

Chemical Name: Magnesium Sulfate Heptahydrate

Chemical Formula: MgSO₄ - 7H₂O

Molar Mass: 246.48 g/mol

CAS Number: 10034-99-8

EC Number: 231-298-2

Technical Specifications

• Form: solid
• Color: white
• Odor: odorless
• pH Value (5%, 25°C): 5.0 - 8.0
• Melting Point: Decomposition >150°C
• Boiling Point: not applicable
• Auto-ignition Temperature: not applicable
• Flash Point: not applicable
• Explosion Limits: not applicable
• Vapor Pressure: < 0.1 mmHg (20°C)
• Density: 1.67 g/cm³ (20°C)
• Bulk Density: approx. 1000 kg/m³
• Solubility in Water: 710 g/l (20°C)
• Solubility in Organic Solvents: no data

Quality Parameters

• Appearance: colorless crystals
• Content: 99.0 - 100.5
• pH Value (5%, 20°C): 5.5 - 8.0
• Water-Insoluble Substances: max. 0.005 %Water-Insoluble Substances: max. 0.005 %
• Chlorides (Cl): max. 0.002 %
• Phosphates (PO₄): max. 0.001 %.
• Heavy Metals (Pb): max. 0.0005 %.
• Arsenic (As): max. 0.0001 %.
• Manganese (Mn): max. 0.002 %.
• Calcium (Ca): max. 0.02 %.
• Iron (Fe): max. 0.0005 %

Examples of Professional Applications in Various Industries

• Use in chemical analysis as a standard and auxiliary reagent
• Useful in environmental and industrial laboratories for preparing standard solutions
• In academic laboratories as a component of teaching kits

Hazard Statements (H)

The product is not classified as hazardous according to the CLP Regulation.

Precautionary Measures (P)

Use basic personal protective equipment. Avoid contact with eyes and skin. Keep out of reach of children.

Recommended Storage Conditions

Store in a dry and cool place in a tightly closed container. Protect from moisture and direct sunlight.