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Ferric oxide

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Name

Ferric oxide

EINECS 215-168-2
CAS No. 1309-37-1 Density 5.24 g/cm3
PSA 43.37000 LogP -0.31100
Solubility insoluble in water Melting Point 1538 °C
Formula Fe2O3 Boiling Point N/A
Molecular Weight 159.70 Flash Point >230°F
Transport Information UN 1376 Appearance red to reddish-brown powder
Safety 26 Risk Codes 36/37/38
Molecular Structure Molecular Structure of 1309-37-1 (Iron(III) oxide) Hazard Symbols IrritantXi
Synonyms

100ED;Iron oxide red;130ED;40G;APC 944;Ariabel Sienna 300406;Auvicorb BL;Bayer 4125;Bayer S 11;Bayferrox 110;Bayferrox 111;Bayferrox 120M;Bayferrox120NM;Bayferrox 130;Bayferrox140;Bayferrox 180;Bayferrox225;Bayferrox 910;Bayferrox BF 110;Bayferrox Red 110;Bayferrox Red 110M;Bayferrox Red 180M;Bengara EP 40;Bengara N 58;C 7051;C888-1045F;C.I. 77491;C.I. Pigment Red 101;CWD 8801;CaputMortuum;Caput Mortuum Light;Cerac I 2012;Colcothar;Colliron;Corona 10863;DB 65;DNS 235;DPN 250BW;DPN250BX;Deanox;Disperse HG 838;Duploxide 226P;FRO 20;Felac;Fepren TD 202F;Fepren TP 120;Fepren TP 303;Ferro Red VX 3100;Ferroxide 212;H 130 (oxide);H 860;IS 445;IS 473;Iron oxide;Ferric Oxide (Fe2O3);Iron oxide (Fe2O3)red;Oxide Iron Yellow;Iron Oxide Brown ,Red, Yellow,Green,Black;

 

Ferric oxide Standards and Recommendations

OSHA PEL: TWA 10 mg/m3
ACGIH TLV: TWA 5 mg/m3, welding fumes

Ferric oxide Specification

Ferric oxide, with the CAS NO. 1309-37-1, it has many synonyms, such as Crystalline ferric oxide, Specular hematite, fe203, Specular red iron oxide, Specularite, Alaska black diamond, Specular jeweler's rouge, Iron oxide; Ferric oxide red. It is a red crystalline insoluble oxide of iron that occurs as haematite and rust and is made by heating ferrous sulphate: used as a pigment and metal polish.

Preparation of Ferric oxide: Ferric oxide is a product of the oxidation of iron. It can be prepared in the laboratory by electrolyzing a solution of sodium bicarbonate, an inert electrolyte, with an iron anode:
4 Fe + 3 O2 + 2 H2O → 4 FeO(OH)
The resulting hydrated Ferric oxide, written here as Fe(O)OH, dehydrates around 200 °C.
2 FeO(OH) → Fe2O3 + H2O
It can also be prepared by the thermal decomposition of Ferric oxide under temperature above 200 °C.
2 Fe(OH)3 → Fe2O3 + 3H2O

Uses of Ferric oxide: The overwhelming application of Ferric oxide is as the feedstock of the steel and iron industries, e.g. the production of iron, steel, and many alloys.  It is also used to put the final polish on metallic jewelry and lenses, and historically as a cosmetic. Except for these, Ferric oxides are used as pigments in dental composites alongside titanium oxides.

You can still convert the following datas into molecular structure:
(1)InChI=1S/2Fe.3O;
(2)InChIKey=JEIPFZHSYJVQDO-UHFFFAOYSA-N;
(3)Smiles[Fe].O.[Fe].O.O;

The toxicity data is as follows:

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
dog LDLo subcutaneous 30mg/kg (30mg/kg)   "Abdernalden's Handbuch der Biologischen Arbeitsm

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