Salts & Minerals
REACH
Ferrous chloride
CAS Number
7758-94-3
EC Number
231-843-4
What is Ferrous chloride?
Ferrous chloride (CAS 7758-94-3), also known as FeCl2 or iron dichloride, is an iron(II) salt used in water treatment, metal processing, and chemical manufacturing.
Where is Ferrous chloride used?
- Wastewater treatment: coagulant and flocculant that precipitates phosphates and heavy metals from effluent
- Textile and leather processing: mordant for fixing dyes and reducing agent in dyebath chemistry
- Mining and hydrometallurgy: support for leaching and metal recovery
- Chemical manufacturing: catalyst precursor for iron-based catalytic systems
- It also functions as a coagulant, reducing agent, and catalyst precursor in industrial-scale operations.
Commercial specifications
- Anhydrous powder and tetrahydrate crystalline solid; tetrahydrate is the more common commercial format
- Purity and iron content verified against supplier certificates of analysis
Other Names (Synonyms)
FeCl2|iron dichloride|Iron(II) chloride|Ferrous dichloride|Iron(2+) chloride|Ferro 66|Iron protochloride|Natural lawrencite
What are the physical properties of Ferrous chloride?
Melting Point 674 °C
Boiling Point 1023 °C
Density 3.16 g/cm³ @ Temp: 25 °C
Flash Point 1023°C
Appearance Greenish-white crystals. readily oxidized. Soluble in alcohol and water.
Color Off-white
Form beads
Water Solubility Soluble in water, alcohol and acetone. Slightly soluble in benzene. Insoluble in ether.
Vapor Pressure 0Pa at 20℃
How is Ferrous chloride classified and handled safely? Learn More
Danger
GHS05· Corrosive GHS07· Irritant
Hazard Statements
H290 May be corrosive to metals
H302 Harmful if swallowed
H315 Causes skin irritation
H317 May cause an allergic skin reaction
Precautionary Statements
P234 Keep only in original packaging.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash … thoroughly after handling.
P270 Do not eat, drink or smoke when using this product.
Which trade and regulatory codes apply to Ferrous chloride?
HS Code 2827392000
UN Number 3260
ADR Class 8
Packing Group III
Storage Class 8B - Non-combustible corrosive hazardous materials
WGK (Germany) 1