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Ferric oxide

Ferric oxide  Structure
CAS No.
1309-37-1
Chemical Name:
Ferric oxide
Synonyms
Diiron Trioxide;Pigment red 101;Red Ferric Oxide;supra;ochre;deanox;raddle;rubigo;ferrugo;ironred
CBNumber:
CB3115644
Molecular Formula:
Fe2O3
Molecular Weight:
159.69
MOL File:
1309-37-1.mol
MSDS File:
SDS
Modify Date:
2024/6/29 22:56:24

Ferric oxide Properties

Melting point 1538°C
Density 5.24
Flash point >230 °F
storage temp. 2-8°C
solubility It is soluble In Warm Hydrochloric Acid, Slightly Soluble in Sulfuric Acid.
form pieces
color black
Specific Gravity 5.1~5.2
PH 3.7±0.3
Water Solubility INSOLUBLE
Merck 14,4028
Exposure limits ACGIH: TWA 5 mg/m3
OSHA: TWA 10 mg/m3; TWA 15 mg/m3; TWA 5 mg/m3
NIOSH: IDLH 2500 mg/m3; TWA 5 mg/m3
Stability Stable.
CAS DataBase Reference 1309-37-1(CAS DataBase Reference)
IARC 3 (Vol. 1, Sup 7) 1987
NIST Chemistry Reference Iron(iii) oxide(1309-37-1)
EPA Substance Registry System Ferric oxide (1309-37-1)

SAFETY

Risk and Safety Statements

Symbol(GHS) 
GHS02,GHS05
Signal word  Danger
Hazard statements  H225-H318
Precautionary statements  P210-P280-P305+P351+P338+P310
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  26
OEB B
OEL TWA: 5 mg/m3
WGK Germany  -
RTECS  NO7400000
TSCA  Yes
HS Code  28211000
IDLA 2,500 mg Fe/m3
NFPA 704
1
1 0

Ferric oxide price More Price(59)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich(India) 747432 Iron oxide(II,III) magnetic nanoparticles solution 30?nm avg. part. size (TEM), biotin functionalized, 1?mg/mL Fe in H2O, dispersion 1309-37-1 1ML ₹34925.8 2022-06-14 Buy
Sigma-Aldrich(India) 747335 Iron oxide(II,III) magnetic nanoparticles solution 30?nm avg. part. size (TEM), carboxylic acid functionalized, dispersion 1309-37-1 2ML ₹31042.2 2022-06-14 Buy
Sigma-Aldrich(India) 720712 Iron(III) oxide, dispersion nanoparticles, ≤110?nm particle size, 15?wt. % in ethanol 1309-37-1 100G ₹20856.83 2022-06-14 Buy
Sigma-Aldrich(India) 544884 Iron(III) oxide nanopowder, <50?nm particle size (BET) 1309-37-1 5G ₹3929.48 2022-06-14 Buy
Sigma-Aldrich(India) 544884 Iron(III) oxide nanopowder, <50?nm particle size (BET) 1309-37-1 25G ₹13098.25 2022-06-14 Buy
Product number Packaging Price Buy
747432 1ML ₹34925.8 Buy
747335 2ML ₹31042.2 Buy
720712 100G ₹20856.83 Buy
544884 5G ₹3929.48 Buy
544884 25G ₹13098.25 Buy

Ferric oxide Chemical Properties,Uses,Production

Description

Iron oxides are produced synthetically and consist essentially of anhydrous and/or hydrated iron oxides. The range of hues includesyellows, reds, browns and blacks. Food quality iron oxides are primarily distinguished from technical grades by the comparatively low levels of contamination by other metals. This is achieved by the selection and control of the source of iron and/or by the extent of chemical purification during the manufacturing process. Iron oxides have been used to color confectionery, fillings and decorations for pastry products, cheese products, fish paste, pet foods, cosmetics and pharmaceutical products.

Chemical Properties

Hematite is a noncombustible, black to black red or brick-red mineral (iron ore) composed mainly of ferric oxide, Fe2O3. Ferric oxide

Occurrence

Iron(III) oxide occurs in nature as the mineral hematite. It is the principal ore of iron from which the metal and its alloys are produced. Also, this oxide occurs in the mineral, limonite, 2Fe2O3?3H2O. An important application of this compound involves producing red, orange, and yellow pigments. Other applications are in coatings for metals, steel and rubber; in ceramics; and as a catalyst for oxidation reactions.

Uses

Ferric Oxide is a nutrient and dietary supplement that is a source of iron.

Preparation

Iron(III) oxide is prepared as a reddish-brown hydrated precipitate by treating an aqueous solution of an iron(III) salt with caustic soda:
2FeCl3 + 6NaOH → Fe2O3?3H2O + 6NaCl
It also is obtained by thermal decomposition of iron(II) sulfate or the brown oxide hydroxide:
2FeSO4 → Fe2O3 + SO2 + SO3
2FeO(OH) → Fe2O3 + H2O
The oxide is prepared in industrial scale by first precipitating iron(II) hydroxide Fe(OH)2 by treating aqueous solutions of iron(II) sulfate and caustic soda. The Fe(OH)2 is then oxidized to iron(III) hydroxide by aeration. The latter is dehydrated by heating:
Fe2+ (aq) + OHˉ (aq) → Fe(OH)2(s) → 2Fe(OH)3 → Fe2O3 + 3H2O
It also is produced by ignition of iron(III) oxalate and iron carbonyls:
2Fe2(C2O4)3 +3O2 → 2Fe2O3 + 12CO
.

Definition

A high-grade red pigment used as a polishing agent for glass, jewelry, etc. (2) A cosmetic prepared from dried flowers of the saf- flower.

Hazard

Pneumoconiosis. Questionable carcinogen.

Potential Exposure

Hematite; as an iron ore composed mainly of ferric oxide, is a major source of iron and is used as a pigment for rubber, paints, paper, linoleum, ceramics, dental restoratives; and as a polishing agent for glass and pre cious metals. It is also used in electrical resistors, semiconduc tors, magnets, and as a catalyst. Human exposure to hematite from underground hematite mining is principally through inhalation and/or ingestion of dusts. No estimates are available concerning the number of underground miners exposed.

Carcinogenicity

Welders are typically exposed to a complex mixture of dust and fume of metallic oxides, as well as irritant gases, and are subject to mixeddust pneumoconiosis with possible loss of pulmonary function; this should not be confused with benign pneumoconiosis caused by iron oxide.1 Although an increased incidence of lung cancer has been observed among hematite miners exposed to iron oxide, presumably owing to concomitant radon gas exposure, there is no evidence that iron oxide alone is carcinogenic to man or animals.6

Incompatibilities

Contact with hydrogen peroxide, ethyl ene oxide, calcium hypochlorite will cause explosion. Violent reaction with powdered aluminum; hydrazine, hydrogen trisulfide.

Global( 463)Suppliers
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VAYUNANDAN IMPEX +919836761502 Rajasthan, India 28 58 Inquiry
UNILOSA INTERNATINAL PRIVATE LIMITED +91-9999069917 +91-9999069917 New Delhi, India 152 58 Inquiry
Parshwanath Group of Indusries +91-9979874744 +91-9825244644 Gujarat, India 211 58 Inquiry
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