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1309-37-1 Suppliers

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Product FOB Price Min.Order Supply Ability Supplier
Quality Iron Oxide Red
Cas No: 1309-37-1
No Data 500 Kilogram 5000 Metric Ton/Day Anhui Sunsing Chemicals Co.,Ltd Contact Supplier
Ferric oxide
Cas No: 1309-37-1
USD $ 3.0-3.0 / Kilogram 1 Kilogram 1-100 Metric Ton/Month Hangzhou Dayangchem Co., Ltd. Contact Supplier
high quality iron oxide pigments
Cas No: 1309-37-1
USD $ 330.0-500.0 / Gram 10 Gram 10 Metric Ton/Month Hebei yanxi chemical co.,LTD. Contact Supplier
Fresh In Stock:Iron Oxide Red with BEST PRICE
Cas No: 1309-37-1
USD $ 1.0-1.0 / Metric Ton 1 Metric Ton 1000 Metric Ton/Day Scale Chemical Corporation Contact Supplier
Iron(Ⅲ) oxide
Cas No: 1309-37-1
No Data 1 Kilogram 20 Metric Ton/Month Henan Allgreen Chemical Co.,Ltd Contact Supplier
High quality Iron Oxide Red supplier in China
Cas No: 1309-37-1
No Data No Data No Data Simagchem Corporation Contact Supplier
Ultra-fine Easily-dispersed Iron Oxide Pigment
Cas No: 1309-37-1
USD $ 1.0-1.0 / Metric Ton 20 Metric Ton 2000 Metric Ton/Month Henan Sinotech Import&Export Corporation Contact Supplier
1309-37-1 Fe2O3 Ferric oxide
Cas No: 1309-37-1
No Data 10 Gram 5 Kilogram/Day HENAN SUNLAKE ENTERPRISE CORPORATION Contact Supplier
Buy lithopone cas:1309-37-1 from lithopone factory or lithopone manufacturer
Cas No: 1309-37-1
USD $ 700.0-700.0 / Metric Ton 1 Metric Ton 3000 Metric Ton/Month Crovell Biotech (Hebei) Co., Ltd. Contact Supplier
cas 1309-37-1 Iron oxide orange 960 synthetic pigment for concrete paving tiles
Cas No: 1309-37-1
No Data 10 Gram 10 Metric Ton/Month Hubei XinRunde Chemical Co., Ltd Contact Supplier

1309-37-1 Usage

Physical Properties

Reddish-brown hexagonal crystal; refractive index 2.91; density 5.25g/cm3; Moh’s hardness 6.0; melts at 1565°C; insoluble in water; dissolves in acids.


As pigment for rubber, paints, paper, linoleum, ceramics, glass; in paint for ironwork, ship hulls; as polishing agent for glass, precious metals, diamonds; in electrical resistors and semiconductors; in magnets, magnetic tapes; as catalyst; colloidal solutions as stain for polysaccharides.


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) + OH¯ (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

Occurrence and Uses

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.


Iron(III) oxide decomposes to its elements when heated at elevated temperatures:
2Fe2O3 → 4Fe + 3O2
The oxide is reduced by most reducing agents. Reaction with carbon monoxide at elevated temperatures (that occurs in the blast furnace) gives metallic iron. The overall reaction is mildly exothermic (ΔHrxn –113.4 kcal/mol):
2 Fe2O3 + 6CO → 4Fe + 6CO2
It also is reduced by powdered aluminum at elevated temperatures, forming aluminum oxide and metallic iron:
Fe2O3 + 2Al → Al2O3 + 2Fe
The reaction is highly exothermic and becomes self-sustaining after ignition.
When heated with sand in an electric furnace, iron(III) oxide forms ferrosilicon alloy. When heated in a vacuum at 1,000°C, it forms triiron tetroxide, Fe3O4.

Chemical Properties

red to reddish-brown powder

1309-37-1 Well-known Company Product Price

Brand (Code)Product description CAS number Packaging Price Detail
Sigma-Aldrich (12342)  Iron(III)oxide  purified, ≥95% 1309-37-1 12342-6X1KG 2,995.20CNY Detail
Sigma-Aldrich (12342)  Iron(III)oxide  purified, ≥95% 1309-37-1 12342-250G 398.97CNY Detail
Sigma-Aldrich (12344)  Iron(III)oxide  puriss., ≥97.0% (complexometric) 1309-37-1 12344-1KG 2,504.97CNY Detail
Sigma-Aldrich (12344)  Iron(III)oxide  puriss., ≥97.0% (complexometric) 1309-37-1 12344-250G 717.21CNY Detail
Sigma-Aldrich (310050)  Iron(III)oxide  powder, <5 μm, ≥99% 1309-37-1 310050-2.5KG 1,668.42CNY Detail
Sigma-Aldrich (310050)  Iron(III)oxide  powder, <5 μm, ≥99% 1309-37-1 310050-500G 565.11CNY Detail
Sigma-Aldrich (310050)  Iron(III)oxide  powder, <5 μm, ≥99% 1309-37-1 310050-25G 372.06CNY Detail
Sigma-Aldrich (343005)  Iron(III)oxide  pieces, 3-12 mm, 99.8% trace metals basis 1309-37-1 343005-50G 1,308.06CNY Detail
Aldrich (529311)  Iron(III)oxide  ≥99.995% trace metals basis 1309-37-1 529311-25G 2,238.21CNY Detail
Aldrich (529311)  Iron(III)oxide  ≥99.995% trace metals basis 1309-37-1 529311-5G 898.56CNY Detail
Aldrich (720704)  Iron(III)oxide,dispersion  nanoparticles, <100 nm particle size (DLS), <30 nm avg. part. size (APS), 20 wt. % in H2O 1309-37-1 720704-100G 1,770.21CNY Detail
Aldrich (720712)  Iron(III)oxide,dispersion  nanoparticles, <110 nm particle size (DLS), <30 nm avg. part. size (APS), 20 wt. % in ethanol 1309-37-1 720712-100G 1,824.03CNY Detail



According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017


1.1 GHS Product identifier

Product name ferric oxide

1.2 Other means of identification

Product number -
Other names Ferric sesquioxide

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:1309-37-1 SDS

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