Liquid ferric chloride FeCl3 in red-brown solution

Liquid ferric chloride supplier-Foconsci

Liquid ferric chloride CAS 7705-08-0

Chemical name:Iron(III) chloride

Synonymous names: Anhydrous ferric chloride

CAS No: 7705-08-0

Molecular formula: FeCl3

Content: ≥99%

Molecular weight: 162.2

EINECS: 231-729-4

Appearance: Red brown liquid

Packing: 25kg; 200kg/1475 kgs/ IBC (18 IBCs/ 20GP/26550 kgs/26.55MTs)

According to the national standard Class II, ferric chloride solution requires a ferric chloride content of ≥ 37.75%, which is considered compliant. However, in general, liquid ferric chloride by Foconsci can reach ≥ 40%.

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Properties and Uses of Liquid Ferric Chloride

Liquid ferric chloride is the water solution of anhydrous ferric chloride (FeCl3) with wide applications in wastewater treatment and other fields. It is used as a replacement for solid ferric chloride with more advantages and application scenarios. First of all, liquid ferric chloride has shown excellent results in the treatment of urban sewage and industrial wastewater. It can efficiently flocculate heavy metals, sulfides, grease and other substances in the sewage, while achieving decolorization, deodorization, sterilization and other effects. Compared with solid ferric chloride, liquid ferric chloride is more affordable and reduces treatment costs. In addition, it has excellent flocculation performance, fast settling speed, produces less sludge, and saves sludge treatment costs.

In addition, liquid ferric chloride also shows unique advantages in water treatment. Compared with traditional aluminum-based flocculants, it is more efficient, non-toxic and has no secondary pollution. The alum flowers form densely and settle quickly, which is beneficial to the separation of mud and water and simplifies the sewage treatment process. Moreover, compared with traditional PAC, liquid ferric chloride produces less sludge and is easier to dehydrate, reducing operating costs and sludge treatment and disposal costs. It is easy to use, does not require liquid preparation, and has broad application prospects. It is expected to replace traditional PAC and become the future development trend.

Liquid ferric chloride export-Foconsci

Liquid Ferric Chloride Specification

TypeSpecification	SP-ⅠRecycle Grade	SP-ⅡCommon Grade	SP-ⅢHigh Pure Grade
Appearance	Red brown liquid
Contents of FeCl3	30-44%
Density	1.30-1.50
Contents of FeCl2	≤0.25%
Contents of water insoluble matter	≤0.3%
Contents of free acid (HCl)	≤0.5%	≤0.3%	≤0.3%
Contents of Cu	–	≤0.1%	≤50ppm
Contents of Zn	–	≤0.1%	≤165ppm
Contents of Cr	–	≤0.1%	≤500ppm
Contents of Pb	–	≤0.1%	≤100ppm
Contents of Ni	–	≤0.1%	≤30ppm
Contents of Cd	–	≤0.01%	≤10ppm
Contents of Hg	–	≤0.01%	≤10ppm
Contents of As	–	–	≤10ppm

Structural formula:

Why does Anhydrous Ferric Chloride Appear As a Liquid in Air?

Anhydrous FeCl₃ is a solid, but it is extremely hygroscopic. Upon exposure to air, it immediately absorbs moisture and dissolves, resulting in a brownish-red ferric chloride solution. Therefore, the liquid anhydrous ferric chloride we see is not truly liquid FeCl₃, but rather a solution formed by deliquescence.

Should I Choose Anhydrous Ferric Chloride or Iron III Chloride Hexahydrate?

For general water treatment, dyeing and printing, and wastewater applications: Iron iii chloride hexahydrate (FeCl3·6H2O) is sufficient.

For organic reactions and catalytic systems sensitive to moisture content: anhydrous ferric chloride must be used, and strict moisture protection must be ensured.

FeCl₃ VS. FeCl₃·6H₂O:

Product Name	Other Name	CAS Number	Chemical Formula	Common Forms	Appearance
Iron (III) chloride hexahydrate	Ferric chloride hexahydrate	10025-77-1	FeCl3·6H3O	Solid crystals	Brownish-yellow, stable, granular
Iron (III) chloride	Anhydrous ferric chloride	7705-08-0	FeCl3	Liquids	Brown liquid

Use comparison recommendations:

Application areas	Recommended Products	Description
Acidic etching solutions for the electronics industry (PCB etching, metal surface treatment)	Anhydrous FeCl3	A high-concentration, low-water-content Fe³⁺ solution is required; anhydrous materials make it easier to achieve precise acidity and concentration control when preparing etching solutions.
Organic Reactions: Friedel-Crafts Acylation/Alkylation, Aromatic Chlorination, Oxidation Reactions	Anhydrous FeCl3 (Keep away from moisture)	These Lewis acid-catalyzed reactions are extremely sensitive to water and must be carried out in a truly anhydrous system.
Metal smelting and waste acid treatment processes (pickling waste liquid regeneration)	Anhydrous FeCl3	Higher activity can promote oxidation reactions and improve regeneration efficiency.
Preparation of photosensitive materials, pigments, additives, and chemical reagents	Anhydrous FeCl3	High product quality requirements are required to avoid introducing impurities or affecting the degree of dryness due to crystallization water.
General industrial wastewater (Fe/Cu removal from electroplating wastewater, demulsification of oily wastewater)	FeCl3·6H2O	FeCl3·6H2O is the most economical and convenient to use method for water treatment.
Coagulation and flocculation of municipal sewage and industrial wastewater (printing and dyeing, papermaking, food processing, chemical plants)	FeCl3·6H2O	It dissolves quickly, has stable dosage, and is less expensive, making it the most commonly used form in water treatment.
Iron, turbidity, and phosphorus removal from drinking water plants or groundwater	FeCl3·6H2O	The dosing equipment is compatible with solid crystals, the reaction is mild, and it can steadily improve the clarity of the effluent.
Oilfield drilling mud conditioning and dehydration treatment	FeCl3·6H2O	The operation site is mostly outdoors, and iron iii chloride hexahydrate is stable in storage and has strong moisture resistance.