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Ferrous sulfate

CAS Number
7720-78-7
EC Number
231-753-5
Chemical Formula
Fe.H2O4S
Molecular Weight
151.91 g/mol

Description

Ferrous sulfate (CAS 7720-78-7 ) is an inorganic iron salt supplied as a heptahydrate or anhydrous form, used across water treatment, agriculture, and pharmaceutical manufacturing. It functions primarily as an iron source, reducing agent, and precipitating agent in industrial processes. In municipal water treatment, it acts as a coagulant and phosphate precipitant. This chemical helps remove impurities and control algae in reservoirs. Pharmaceutical manufacturers use it as the active iron source in oral iron-deficiency supplements and fortified food products. In agriculture, it corrects iron chlorosis in soils and turf, and serves as a moss control agent in lawn care formulations. Mining operations apply it in hydrometallurgical processes. Applications include the precipitation of metals from leach solutions and as a reducing agent in chromate treatment of effluent. It is available as a heptahydrate in granular or crystalline form. The product is also offered as a dried or anhydrous powder with lower water content for applications requiring reduced moisture. Recognized grades include USP , BP , and food-grade ( FCC ). These standards ensure suitability for pharmaceutical and nutritional use, alongside technical and agricultural grades for industrial supply. Bulk availability supports high-volume procurement. Packaging options include bags, supersacks, and bulk tanker quantities. This ensures reliable distribution across all major end-use sectors for global manufacturing and processing needs. Contact us for supply of Ferrous sulfate Request Quote

Other Names (Synonyms)

iron(II) sulphate (1:1) | iron(II) sulphate | iron(II) sulfate (1:1) | iron(2+) sulfate (anh.) | iron sulphate (1:1) | iron sulfate (1:1) | FeSO4 | ferrous sulphate

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Pointdecomposes at 671°C [JAN85]
Density2.99-3.08 g/cm³
AppearanceGreenish or yellow-brown crystals or granules
odorless. Soluble in water with saline taste
insoluble in alcohol. hygroscopic.
Colorwhite orthorhombic crystals, crystalline
hygroscopic
Odorat 100.00?%. odorless
Formwhite orthorhombic crystals
Water Solubilityg/100g solution H2O: 13.6 (0°C), 22.8 (25°C), 24.0 (100°C)
solid phase, FeSO4 · 7H2O (0°C, 25°C), FeSO4 ·H2O (100°C) [KRU93]
Vapor Pressure0Pa at 20℃
pH2.5 (20°C, 50g/L in H2O)

Safety & Handling

Warning
GHS07· Irritant

Hazard Statements

H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation

Precautionary Statements

P264Wash … thoroughly after handling.
P270Do not eat, drink or smoke when using this product.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P321Specific treatment (see … on this label).
P330Rinse mouth.
P501Dispose of contents/container in accordance with local regulations.
P265Wash … thoroughly after handling.
P317Get emergency medical help.
P352IF ON SKIN: Wash with plenty of water.
P317Get emergency medical help.
P317If eye irritation persists: Get medical advice/attention. Get emergency medical help.
P364Take off contaminated clothing and wash it before reuse.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code28332910
Storage Class12 - Non Combustible Liquids
WGK (Germany)2