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Pigments & Colorants

Ferrous chloride

CAS: 7758-94-3

Overview

Ferrous chloride (CAS 7758-94-3 ), also known as FeCl2 or iron dichloride, is an iron(II) salt used across water treatment, metal processing, and chemical manufacturing. It functions primarily as a coagulant, reducing agent, and catalyst precursor in industrial-scale operations.

In municipal and industrial wastewater treatment, it acts as a coagulant and flocculant, precipitating phosphates and heavy metals from effluent streams. Textile and leather processors use it as a mordant to fix dyes and as a reducing agent in dyebath chemistry.

These applications improve color fastness and process consistency across various manufacturing sectors. In mining and hydrometallurgy, it supports leaching operations and metal recovery processes where controlled iron chemistry is required for efficiency.

Chemical manufacturers also source it as a catalyst precursor for synthesis routes involving iron-based catalytic systems. This versatile chemical is essential for maintaining high standards in modern industrial and environmental management protocols.

The product is available in anhydrous powder form and as a tetrahydrate in solid crystalline form. The tetrahydrate is the more common commercial supply format for most global distribution and storage requirements.

Liquid solutions of varying concentration are also offered for direct dosing in water treatment applications. Technical grade is the standard specification for most industrial buyers, ensuring reliable performance in large-scale chemical processes.

Purity and iron content are strictly verified against supplier certificates of analysis to meet industrial needs. This ensures that every batch complies with the necessary safety and performance benchmarks required by professional chemical engineers.

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Physical Properties

Melting Point674 °C
Boiling Point1023 °C
Density3.16 g/cm³ @ Temp: 25 °C
Flash Point1023°C
AppearanceGreenish-white crystals. readily oxidized. Soluble in alcohol and water.
ColorOff-white
Formbeads
Water SolubilitySoluble in water, alcohol and acetone. Slightly soluble in benzene. Insoluble in ether.
Vapor Pressure0Pa at 20℃

Safety & Handling

Danger GHS05 GHS07 Hazard Statements H290 May be corrosive to metals H302 Harmful if swallowed H315 Causes skin irritation H317 May cause an allergic skin reaction H318 Causes serious eye damage H319 Causes serious eye irritation H412 Harmful to aquatic life with long lasting effects 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. P272 Contaminated work clothing should not be allowed out of the workplace. P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection. P317 Get emergency medical help. P321 Specific treatment (see … on this label). P330 Rinse mouth. P390 Absorb spillage to prevent material damage. P406 Store in a corrosion-resistant/… container with a resistant inner liner. P501 Dispose of contents/container in accordance with local regulations. P264+P265 Wash … thoroughly after handling. P301+P317 Get emergency medical help. P302+P352 IF ON SKIN: Wash with plenty of water. P332+P317 Get emergency medical help. P333+P317 Get emergency medical help. P337+P317 If eye irritation persists: Get medical advice/attention. Get emergency medical help. P362+P364 Take off contaminated clothing and wash it before reuse. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P305+P354+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code2827392000
UN Number3260
ADR Class8
Packing GroupIII
Storage Class8B - Non-combustible corrosive hazardous materials
WGK (Germany)1

Other Names

FeCl2 | iron dichloride | Iron(II) chloride | Ferrous dichloride | Iron(2+) chloride | Ferro 66 | Iron protochloride | Natural lawrencite

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Chemical Properties

CAS Number
7758-94-3
EC Number
231-843-4
Mol. Weight
126.75
HS Code
2827392000

Industries

Documentation