Ferrous Sulfate (CAS: 7720-78-7) – Iron Source for Industrial and Agricultural Use

🧪 CAS Number: 7720-78-7

🌟 Product Description

Ferrous sulfate (FeSO4⋅xH2O), commonly found as heptahydrate (FeSO₄·7H₂O), is a blue-green crystalline inorganic salt that is highly soluble in water. It is widely used to treat iron deficiency, in water treatment, the pigment industry, and as a micronutrient in agriculture. Thanks to its strong reducing properties, it is also employed in various industrial processes.

🏭 Applications

🌱 Agriculture: Corrects iron deficiency in plants, fertilizer additive

💧 Water Treatment: Phosphate removal, coagulation, decolorization

🎨 Paint & Pigment Industry: Iron-based pigment production

🏗 Construction: Used as an additive in concrete

⚗️ Chemical Industry: Reducing agent and intermediate in syntheses

📊 Physical & Chemical Properties

Appearance: Blue-green crystals (heptahydrate)

Odor: Odorless

Molecular Formula: FeSO₄·7H₂O

Molecular Weight: 278.01 g/mol (heptahydrate)

Density: ~1.90 g/cm³

Solubility: Highly soluble in water

Melting Point: Loses crystal water at ~64 °C

⚠️ Storage & Safety

Store in a cool, dry place. Protect from moisture as it readily oxidizes and turns brown. May cause skin and eye irritation; gloves and goggles are recommended.

🔑 Keywords

ferrous sulfate, iron sulfate, CAS 7720-78-7, water treatment chemical, iron salt, agricultural micronutrient

📛 Other Names

Iron(II) Sulfate, Green Vitriol, Copperas