1. Product Overview & Specifications

CAS No.: 1309-33-7
Chemical Formula: Fe(OH)₃
Molecular Weight: 106.87 g/mol
Appearance: Red-brown amorphous powder or colloidal gel
Density: 3.4–3.9 g/cm³
Solubility: Insoluble in water/ethanol; soluble in acids and hot concentrated alkalis

Comparative Specifications

2. Key Applications

• Water Treatment: Effective adsorbent for heavy metal removal (As, Pb, Cd) in industrial wastewater.
• Pharmaceuticals: Used as an antidote for arsenic poisoning and in drug formulations.
• Pigment Production: Base material for iron oxide red/yellow pigments in coatings and ceramics.
• Catalysis: Precursor for iron-based catalysts in chemical synthesis.
• Mordant: Enhances dye stability in textile processing.

3. Usage Scenarios

A. Heavy Metal Remediation

Add 2-5g/L colloidal Fe(OH)₃ to contaminated water at pH 6–8. Stir for 30 mins; filter precipitated metals.

B. Pharmaceutical Synthesis

Dissolve in HCl to prepare FeCl₃ solution for antianemia drug intermediates.

C. Catalyst Preparation

Calcinate at 300°C to produce active α-Fe₂O₃ for oxidation reactions.

4. Client Case Studies

Case 1: Municipal Water Plant (Guangdong, China)

Challenge: Remove arsenic (0.2 mg/L) to meet 0.01 mg/L standard.
Solution: 0.8g/L Fe(OH)₃ dosing achieved 98.7% removal efficiency.
Outcome: Annual chemical cost reduced by 42% vs. alum treatment.

Case 2: Dye Manufacturer (Zhejiang, China)

Challenge: Improve color fastness of cotton fabrics.
Solution: 5% Fe(OH)₃ mordant pretreatment.
Outcome: Wash fastness improved from Grade 2 to Grade 4–5.

Case 3: Chemical Catalyst Co. (Jiangsu, China)

Challenge: Develop cost-effective Fischer-Tropsch catalyst.
Solution: Used Fe(OH)₃ precursor for nano-structured catalyst.
Outcome: Increased CO conversion by 18% vs. traditional methods.

5. Inquiry & Contact

For technical specifications, bulk pricing, or custom formulations:
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Phone: (86) 15866781826

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