Iron hydroxide

Basic Information

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CAS Number

1309-33-7

Molecular Formula

FeH6O3

Molecular Weight

109.89 g/mol

Chemical Classification

Basic Chemical Raw Materials Inorganic Chemicals Acids

Basic Physical Properties

SMILES

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O.O.O.[Fe]

InChI

InChI=1S/Fe.3H2O/h;3*1H2

InChIKey

FLTRNWIFKITPIO-UHFFFAOYSA-N

LogP

-2.4766

Topological Polar Surface Area

94.5 Å²

Hydrogen Bond Donor/Acceptor

6 / 3

Complexity

3.2

Synonyms & References

English

CHEBI:135985
DTXSID5051652
iron;trihydrate
Ferric hydroxide
Fe(OH)3
EINECS 215-166-1
Iron hydroxide (Fe(OH)3)
FEL
1309-33-7
UNII-2UA751211N
AKOS015904090
NS00112452
iron trihydroxide
FERRISPEC(R) PL COLOR YELLOW IRON OXIDE
FERRISPEC(TM) GC
FERRIC HYDROXY OXIDE
GOETHITE
Iron(III) hydroxide
YELLOW IRON OXIDE
DIIRON TRIOXIDE HYDRATE
FERRIC HYDROXIDE, MOIST
FERRIC OXIDE DIHYDRATE
IRON HYDROXIDE (IC)
IRON(3+) TRIHYDROXIDE
iron hydroxide
Ferric hydroxide gel
Ferric trihydroxide
Hydrated iron sesquioxide
Hydrous iron (III) oxide
Iron(3+) hydroxide
E 172

MDL Number

MFCD00748135

FAQ

What are the physical and chemical properties of Iron hydroxide (CAS: 1309-33-7)?

Iron hydroxide (CAS: 1309-33-7) is a hydrated form of iron oxide, typically occurring as a pale yellow or greenish powder. It is slightly soluble in water and has a molecular weight of approximately 107 g/mol. Chemically, it is a weak base and can react with acids to form salts and water. Its crystalline form can vary, often occurring as a flocculent mass or as individual crystals. It is less reactive than pure iron, but can still participate in redox reactions.

How is Iron hydroxide (CAS: 1309-33-7) typically synthesized?

Iron hydroxide (CAS: 1309-33-7) is commonly synthesized by the reaction of iron salts with aqueous sodium hydroxide (NaOH) or other bases. The process typically involves the addition of the iron salt to a base solution, which leads to the formation of a precipitate of iron hydroxide. The reaction is exothermic, and the yield can be controlled by adjusting the pH and temperature. Common catalysts are not necessary for this reaction, but the choice of base can affect the morphology and crystallinity of the product.

What industries use Iron hydroxide (CAS: 1309-33-7)?

Iron hydroxide (CAS: 1309-33-7) is used in various industries. In pharmaceuticals, it acts as a buffering agent and a carrier for metal ions. In the polymer industry, it serves as a flame retardant and a filler. It is also used in the production of sensors for detecting metal ions, and in semiconductors for dopant removal processes. Additionally, it finds applications in water treatment as a coagulant and flocculant.

What precautions should be taken when handling Iron hydroxide (CAS: 1309-33-7)?

When handling iron hydroxide (CAS: 1309-33-7), it is important to follow safety guidelines. Wear appropriate personal protective equipment (PPE), including gloves and safety goggles, as it can be an irritant if it comes into contact with skin or eyes. Work in a well-ventilated area or a fume hood to avoid inhaling dust. If a spill occurs, sweep up the material carefully and dispose of it according to local regulations. Consult the Safety Data Sheet (SDS) for detailed information and emergency procedures.