Iron(III) hydroxide, 20% in H{2}O, nanoparticle dispersion, low pH, <5.0nm APS Number Weighted

Description

CAS: 20344-49-4 | FeHO2 | 88.851 g/mol

Iron(III) hydroxide is used in cosmetics, tattoo inks and aquarium water treatment. It is used as a pigment and as an adsorbent for removing lead from aquatic media. It acts as a catalyst for proteomics research. It is involved in the removal of toxic selenate and selenite ions from water systems.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Specifications

Chemical Identifiers

• CAS: 20344-49-4
• Molecular Formula: FeHO2
• Molecular Weight (g/mol): 88.851
• MDL Number: MFCD00064782
• InChI Key: AEIXRCIKZIZYPM-UHFFFAOYSA-M
• Synonym: hydroxy oxo iron, goethite, lepidocrocite, iron hydroxide oxide, goethite fe oh o, iron hydroxide oxide fe oh o, iron iii oxide-hydroxide, ferric acid, iron pigment yellow, ferric hydroxide oxide
• PubChem CID: 91502
• IUPAC Name: hydroxy(oxo)iron
• SMILES: O[Fe]=O

• Color: Red to Brown
• pH: 3.0
• Physical Form: Liquid
• Quantity: 100 g
• Linear Formula: FeO(OH)
• Merck Index: 14,4025
• Solubility Information: Insoluble in water.
• Formula Weight: 88.85
• Odor: Odorless
• Density: 1.20 g/mL
• Chemical Name or Material: Iron(III) hydroxide, 20% in H₂O, nanoparticle dispersion

Safety and Handling

Hazard Category	Warning
Hazard Statement	GHS H Statement H302-H315-H335 Harmful if swallowed. Causes skin irritation. May cause respiratory irritation.
Precautionary Statement	GHS P Statement P261-P280-P304+P340-P362-P405-P501a Avoid breathing dust/fume/gas/mist/vapors/spray. Wear protective gloves/protective clothing/eye protection/face protection. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Take off contaminated clothing and wash before reuse. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.
EINECSNumber	243-746-4
TSCA	Yes
Recommended Storage	Ambient temperatures

SDS

RUO – Research Use Only