Iron chloride dosage

Iron chloride ( FeCl₃, CAS No. 7705-08-0) is a metallic salt widely used in the chemical, environmental, and cosmetic industries. In aqueous solution, it acts as a , coagulant , or astringent agent , depending on its application.

Iron chloride analysis determines the iron content in liquid, solid, or complex formulations to control product quality , purity , and regulatory compliance .
This analysis is essential for:

• Check the exact concentration of Fe³⁺ in industrial or cosmetic products.
• Evaluate treatment performance in pollution control or flocculation processes.
• Control the quality of raw materials used in formulation or production.

Analytical methods used

The analysis of iron chloride relies on several complementary approaches, chosen according to the required precision and the nature of the sample:

• ICP-MS (Inductively coupled plasma mass spectrometry) : reference method for the detection at very low concentrations (trace and ultra-trace) of iron and other metals.
• ICP-OES (or ICP-AES, optical plasma emission spectrometry) : suitable for medium to high concentrations , it allows simultaneous quantification of several metallic elements.
• AAS (Atomic Absorption Spectroscopy) : a robust alternative for the selective determination of iron in aqueous solutions.
• Redox titration : used for quick routine checks on simple samples, particularly in production monitoring.

These methods ensure complete traceability of results , in accordance with the requirements of ISO 11885 and NF EN ISO 17294 standards.

Matrices involved

Iron chloride analysis can be applied to many industrial and environmental matrices:

• Industrial aqueous solutions (water treatment agents, cleaning liquids, galvanizing baths).
• Cosmetic and dermatological products , where iron chloride is used as an astringent or stabilizing agent.
• Materials and polymers , to control iron migration in packaging or coatings.
• Environmental samples , including sludge, wastewater, industrial effluents and surface water .

Industrial and environmental applications

Iron chloride plays a key role in many processes:

• Water treatment : used as a flocculant in wastewater treatment plants to remove suspended solids and phosphorus.
• Metallurgical industry : used in metal pickling and the regeneration of etching baths.
• Cosmetics and dermatology : present in some lotions or astringent formulas at low concentrations.
• Control of packaging and polymers : monitoring of migratory metallic elements to verify the conformity of materials in contact with food.

The analysis of iron chloride helps to ensure chemical safety , product stability , and compliance with environmental standards applicable to metallic discharges.

Related analyses

For a more complete characterization of metals and metallic salts, it is recommended to combine this test with:

• Total iron content determination for an overall assessment of metal content.
• The dosage of heavy metals (lead, cadmium, nickel) .
• The dosage of copper and zinc , often combined in industrial and environmental formulations.
• Manganese dosage .

YesWeLab's expertise

YesWeLab provides you with a network of partner laboratories accredited to ISO 17025 and COFRAC , experts in metallic and chemical analyses .
Through the YesWeLab digital platform , you can order your analyses, track your samples, and view your results online, simply and securely.

For any specific request, contact our scientific team to define the method best suited to your analytical needs.