Magnesium Sulfate Heptahydrate

Chemical Name: Magnesium Sulfate 7-Hydrate

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

• Content: 98.5 - 102.0
• pH Value (5%, 20°C): 5.5 - 8.0
• Water-Insoluble Substances: max. 0.01 %.
• Chlorides (Cl): max. 0.0035 %.
• Phosphates (PO₄): max. 0.005 %.
• Heavy Metals (Pb): max. 0.0005 %.
• Arsenic (As): max. 0.0002 %.
• Calcium (Ca): max. 0.05 %.
• Iron (Fe): max. 0.002 %

Examples of Professional Applications in Various Industries

• As a chemical reagent in quantitative analysis
• For the preparation of buffer and control solutions in laboratories
• In industrial, environmental, and academic laboratories

Hazard Statements (H)

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

Precautionary Measures (P)

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

Recommended Storage Conditions

Store in a dry, cool, and well-ventilated place in a tightly sealed container. Protect from moisture and direct sunlight.