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Iron hydroxide oxide structure

Iron hydroxide oxide

Iron hydroxide oxide, with the chemical formula FeO(OH) and CAS registry number 20344-49-4, is a compound known for its various applications. This compound is commonly used as a pigment in paints and coatings due to its reddish-brown color. It is also used in the production of iron oxide pigments, which are widely used in the manufacturing of ceramics, plastics, and rubber. Iron hydroxide oxide is insoluble in water and is often used as a corrosion inhibitor in industrial processes. Additionally, it has been studied for its potential use in wastewater treatment due to its ability to adsorb heavy metals. Overall, iron hydroxide oxide is a versatile compound with important industrial applications.
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1. Names and Identifiers
1.1 Name
Iron hydroxide oxide
1.2 Synonyms
dodecacarbonyl-triangulo-tri-iron; dodecacarbonyltriiron; dodecacarbonyltriiron(0); EINECS 243-746-4; ferric acid; Ferric hydroxide oxide; Ferric hydroxide oxide (Iron(III) oxide; Ferric oxide hydroxide; ferric oxide yellow; Ferrous acid; iron dodecarbonyl; Iron monohydroxide monooxide; iron oxide yellow; Iron(III) hydroxide; Iron(III) hydroxide, ^a-phase; Iron(III) hydroxide, ^y-phase; Iron(III) hydroxide, alpha-phase; Iron(III) hydroxide, gamma-phase; iron(III) oxide; Iron(III)oxide,Ferric hydroxide oxide; MFCD00016080; tri-iron dodecacarbonyl;
1.3 CAS No.
20344-49-4
1.4 CID
91502
1.5 EINECS
243-746-4
1.6 Molecular Formula
Fe(OH)3
1.7 Inchi
InChI=1S/Fe.H2O.O/h;1H2;/q+1;;/p-1
1.8 InChkey
AEIXRCIKZIZYPM-UHFFFAOYSA-M
1.9 Canonical Smiles
O[Fe]=O
1.10 Isomers Smiles
O[Fe]=O
2. Properties
2.1 Appearance
DryPowder; WetSolid
2.2 Storage
Ambient temperatures.
2.3 Chemical Properties
reddish-brown crystalline solid
2.4 Color/Form
Red-brown
2.5 Water Solubility
Soluble in mineral acids. Insoluble in water and ethanol.
2.6 Stability
Stable.
2.7 StorageTemp
Store containers closed in ambient location.
3. Use and Manufacturing
3.1 Description

Iron hydroxide oxide, with the chemical formula Fe(OH)O, has the CAS number 20344-49-4. It is a chemical compound that appears as a reddish-brown solid. It does not have a distinct odor. The basic structure of iron hydroxide oxide consists of iron atoms bonded to hydroxide and oxide ions. This compound is insoluble in water. Iron hydroxide oxide is considered to be non-toxic and poses no significant safety hazards. However, it is important to handle it with care to avoid inhalation or ingestion. It is also recommended to wear protective gloves and goggles when working with this compound.

Applicable Fields

Water Treatment: Iron hydroxide oxide is commonly used in water treatment as a coagulant. Its purpose in this field is to remove impurities and contaminants from water by causing suspended particles to clump together and settle. The mechanism of action involves the formation of flocs, which can then be easily removed through filtration or sedimentation.

Pigments: Iron hydroxide oxide is also used as a pigment in various industries, including paints, ceramics, and plastics. Its purpose in this field is to provide color and enhance the visual appeal of products. The mechanism of action involves the absorption and reflection of light by the iron hydroxide oxide particles, resulting in the desired color.

Storage

Conditions: Store in a cool and dry place.

3.2 Methods of Manufacturing
?Method 1: ferrous sulfate oxidation reaction of sulfuric acid and iron filings to produce ferrous sulfate, adding sodium hydroxide and oxidation into the air to prepare nuclei, and then in the nucleus suspension plus ferrous sulfate and iron, heating drum into the air Oxidation, filter press, rinse, dry, crushed to obtain iron oxide yellow. its Fe + H2SO4 → FeSO4 + H2 ↑ FeSO4 + 2NaOH → Fe (OH) 2 + Na2SO4 4Fe (OH) 2 + O2 → 4FeOOH + 2H2O H2SO4 + Fe + 7H2O → FeSO4 · 7H2O + H2 ↑ FeSO4 · 7H2O + O2 → 2Fe2O3 · H2O ↓ + 4H2SO4 + 2H2O Reaction conditions: 74 g iron filings were added to 1000 ml of 15% sulfuric acid until the iron scraps disappeared to produce ferrous sulphate at a concentration of about 200 g / L. To the ferrous sulfate solution prepared above, sufficient 30% sodium hydroxide was added, and 40% of the iron was converted into ferrous hydroxide [Fe (OH) 2] by stirring continuously. , Fe oxidation to Fe to form nuclei. Then, 90 g / L of iron scrap was added to produce 7 g / L of nuclei and 40 g / L of ferrous sulfate. The mixture was heated to 85 ° C and air-oxidized at 600 L / h for 64 h, then filtered and washed , Dry, crushed to obtain water-containing iron oxide yellow. Method 2: Aromatic nitro-oxide method can produce aromatic amino compounds at the same time. The reaction equation is as follows: Fe + H2O + R-NO2 → Fe2O3 · H2O + R-NH2 The reaction conditions were as follows: 560 parts of water, 36.5 parts of 32% hydrochloric acid, 160 parts of iron powder and 10 parts of aluminum powder were added to the reaction vessel. The reaction vessel was charged with 1660 parts of an aqueous solution containing 253 parts of 5-nitro-naphthalene sulfonic acid and 8-nitronaphthalene sulfonic acid at a pH of 6 and a temperature of 80 to 85C. The reaction temperature was 95 ~ 100 ℃ and the pH value was 6 ~ 6.5. Under these conditions, the reaction was carried out for 2 hours, 8 parts of 25% ammonia water was added, the reaction was further carried out for 4 hours, filtered, washed with 560 parts of water three times, The cake was mixed with 1000 parts of water, heated at 95-100 DEG C, 45 parts of 32% hydrochloric acid was added, stirred for 2 hours, filtered, washed with water until acid free, dried to obtain 160 parts of iron oxide yellow pigment, , Yield 96%.
3.3 Usage
In purifying water; as absorbent in chemical processing; as pigment; as catalyst. Iron hydroxide oxide Preparation Products And Raw materials Preparation Products
4. Safety and Handling
4.1 Safety

WGK Germany: -

4.2 Specification

?Hydrated ferric oxide , its cas register number is 20344-49-4. It also can be called?Ferric hydroxide ; Iron hydroxide oxide ; Iron oxides?; Iron hydroxide oxide (Fe(OH)O) .It is a?Fine, yellow, odorless powder.

4.3 Toxicity
?Non-toxic
5. MSDS

2.Hazard identification

2.1 Classification of the substance or mixture

Not classified.

2.2 GHS label elements, including precautionary statements

Pictogram(s) No symbol.
Signal word

No signal word.

Hazard statement(s)

none

Precautionary statement(s)
Prevention

none

Response

none

Storage

none

Disposal

none

2.3 Other hazards which do not result in classification

none

6. Computed Properties
7.Other Information
Usage
Iron(III) hydroxide, alpha-phase, is used as a catalyst for proteomics research. It is also used as a pharamaceutical intermediate.
Usage
Iron(III) hydroxide is used in purifying water and as an absorbent in chemical processes. It is also used as a pigment and as a catalyst. Further, it is used in some tattoo ink and in aquarium water treatment as a phosphate binder.
Usage
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.
Usage
Iron(III) hydroxide, γ-phase is used in purifying water and as an absorbent in chemical processes. It is involved in the preparation of iron oxide-hydroxides nanoparticles, which is used as a very good adsorbent for lead removal from aquatic media. It is also used as a pigment, as a catalyst and in aquarium water treatment as a phosphate binder. Further, it is employed in the paints-lacquers-varnishes industry.
Storage Conditions
?Method 1: ferrous sulfate oxidation reaction of sulfuric acid and iron filings to produce ferrous sulfate, adding sodium hydroxide and oxidation into the air to prepare nuclei, and then in the nucleus suspension plus ferrous sulfate and iron, heating drum into the air Oxidation, filter press, rinse, dry, crushed to obtain iron oxide yellow. its Fe + H2SO4 → FeSO4 + H2 ↑ FeSO4 + 2NaOH → Fe (OH) 2 + Na2SO4 4Fe (OH) 2 + O2 → 4FeOOH + 2H2O H2SO4 + Fe + 7H2O → FeSO4 · 7H2O + H2 ↑ FeSO4 · 7H2O + O2 → 2Fe2O3 · H2O ↓ + 4H2SO4 + 2H2O Reaction conditions: 74 g iron filings were added to 1000 ml of 15% sulfuric acid until the iron scraps disappeared to produce ferrous sulphate at a concentration of about 200 g / L. To the ferrous sulfate solution prepared above, sufficient 30% sodium hydroxide was added, and 40% of the iron was converted into ferrous hydroxide [Fe (OH) 2] by stirring continuously. , Fe oxidation to Fe to form nuclei. Then, 90 g / L of iron scrap was added to produce 7 g / L of nuclei and 40 g / L of ferrous sulfate. The mixture was heated to 85 ° C and air-oxidized at 600 L / h for 64 h, then filtered and washed , Dry, crushed to obtain water-containing iron oxide yellow. Method 2: Aromatic nitro-oxide method can produce aromatic amino compounds at the same time. The reaction equation is as follows: Fe + H2O + R-NO2 → Fe2O3 · H2O + R-NH2 The reaction conditions were as follows: 560 parts of water, 36.5 parts of 32% hydrochloric acid, 160 parts of iron powder and 10 parts of aluminum powder were added to the reaction vessel. The reaction vessel was charged with 1660 parts of an aqueous solution containing 253 parts of 5-nitro-naphthalene sulfonic acid and 8-nitronaphthalene sulfonic acid at a pH of 6 and a temperature of 80 to 85C. The reaction temperature was 95 ~ 100 ℃ and the pH value was 6 ~ 6.5. Under these conditions, the reaction was carried out for 2 hours, 8 parts of 25% ammonia water was added, the reaction was further carried out for 4 hours, filtered, washed with 560 parts of water three times, The cake was mixed with 1000 parts of water, heated at 95-100 DEG C, 45 parts of 32% hydrochloric acid was added, stirred for 2 hours, filtered, washed with water until acid free, dried to obtain 160 parts of iron oxide yellow pigment, , Yield 96%.
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9. Related Questions
Iron(III) hydroxide reacts with sulfuric acid to produce Iron (III) sulfate and water 100 grams of each reactant. Which is the Limiting Reactant? How many grams of each product would be formed?2Fe(OH)3 + 3H2SO4➡️Fe2(SO4)3 + 6H2O Molar mass of Fe(OH)3 = 106.85 g/mol Mole Fe(OH)3 = 100 g/106.85 g/mol = 0.936 mol Molar mass of H2SO4 = 98 g/mol Mole H2SO4 = 100 g/98 g/mol = 1.02 mol From bala..
Is iron(iii) hydroxide equivalent to hydrated iron(iii) oxide? [duplicate] Fe(OH)3 is iron(III) hydroxide, which is a form of iron hydroxide and is different from anhydrous iron(III) oxide (which is Fe2O3) and hydrated iron(III) oxide (which is Fe2O3·nH2O, where n, in this ..
How to determine the minimum pH at which iron(III) hydroxide dissolves completely? Knowing Ks=6?10?38Ks=6?10?38 for Fe(OH)X3Fe(OH)X3 in neutral solutions, calculate the minimum pH of an acidic solution in order to completely dissolve 10 mg10 mg of Fe(OH)X3Fe(OH)X3 . Data: V=0.1 LV=..
Calculating solubility of iron(III) hydroxide in water The following example in Skoog's Analytical Chemistry uses mass-balance and charge-balance equations to calculate the solubility of iron(III) hydroxide in aqueous solution. Fe(OH)X3(s)????FeX3+(aq)+3..
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