Iron Disulfide



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(5N) 99.999% Iron Disulfide Ingot FE2-S2-05-I Request Quote
(5N) 99.999% Iron Disulfide Lump FE2-S2-05-L Request Quote
(5N) 99.999% Iron Disulfide Powder FE2-S2-05-P Request Quote
(5N) 99.999% Iron Disulfide Sputtering Target FE2-S2-05-ST Request Quote
(5N) 99.999% Iron Disulfide Wafer FE2-S2-05-WSX Request Quote


Compound Formula FeS2
Molecular Weight 119.975
Appearance dark gray to black metallic solid
Melting Point N/A
Boiling Point N/A
Density 4.7-4.87 g/cm3
Monoisotopic Mass 119.879082 Da
Exact Mass 119.879083

Health & Safety Info  |  MSDS / SDS

Signal Word N/A
Hazard Statements N/A
Hazard Codes N/A
Risk Codes N/A
Safety Statements N/A
Transport Information N/A
Globally Harmonized System of Classification and Labelling (GHS) N/A


Sulfide IonIron Sulfide is a moderately water and acid soluble Iron source for uses compatible with sulfates. Sulfate compounds are salts or esters of sulfuric acid formed by replacing one or both of the hydrogens with a metal. Most metal sulfate compounds are readily soluble in water for uses such as water treatment, unlike fluorides and oxides which tend to be insoluble. Organometallic forms are soluble in organic solutions and sometimes in both aqueous and organic solutions. Metallic ions can also be dispersed utilizing suspended or coated nanoparticles and deposited utilizing sputtering targets and evaporation materials for uses such as solar energy materials and fuel cells. Iron Sulfide is generally immediately available in most volumes. Ultra high purity and high purity compositions improve both optical quality and usefulness as scientific standards. Nanoscale elemental powders and suspensions, as alternative high surface area forms, may be considered. American Elements produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM testing standards. Typical and custom packaging is available. Additional technical, research and safety (MSDS) information is available as is a Reference Calculator for converting relevant units of measurement.


Iron(II) disulfide, Iron disulphide, Marcasite (CAS 1317-66-4 ), Hydropyrite, Iron(2+) disulfide, 23949-99-7, 58440-06-5

Chemical Identifiers

Formula FeS2
CAS 12068-85-8
Pubchem CID 123110
MDL MFCD00064690
EC No. 235-106-8
IUPAC Name Iron(2+) disulfide
Beilstein Registry No. N/A
SMILES [Fe+2].[S-][S-]
InchI Identifier InChI=1S/Fe.S2/c;1-2/q+2;-2

Packaging Specifications

Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Shipping documentation includes a Certificate of Analysis and Safety Data Sheet (SDS). Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes, and 36,000 lb. tanker trucks.

Related Products & Element Information

See more Iron products. Iron (atomic symbol: Fe, atomic number: 26) is a Block D, Group 8, Period 4 element with an atomic weight of 55.845. The number of electrons in each of Iron's shells is 2, 8, 14, 2 and its electron configuration is [Ar] 3d6 4s2. Iron Bohr ModelThe iron atom has a radius of 126 pm and a Van der Waals radius of 194 pm. Iron was discovered by humans before 5000 BC. In its elemental form, iron has a lustrous grayish metallic appearance. Iron is the fourth most common element in the Earth's crust and the most common element by mass forming the earth as a whole. Iron is rarely found as a free element, since it tends to oxidize easily; it is usually found in minerals such as magnetite, hematite, goethite, limonite, or siderite.Elemental Iron Though pure iron is typically soft, the addition of carbon creates the alloy known as steel, which is significantly stronger. For more information on iron, including properties, safety data, research, and American Elements' catalog of iron products, visit the Iron element page. .

See more Sulfur products. Sulfur (or Sulphur) (atomic symbol: S, atomic number: 16) is a Block P, Group 16, Period 3 element with an atomic radius of 32.066. Sulfur Bohr ModelThe number of electrons in each of Sulfur's shells is 2, 8, 6 and its electron configuration is [Ne] 3s2 3p4. In its elemental form, sulfur has a light yellow appearance. The sulfur atom has a covalent radius of 105 pm and a Van der Waals radius of 180 pm. In nature, sulfur can be found in hot springs, meteorites, volcanoes, and as galena, gypsum, and epsom salts. Sulfur has been known since ancient times but was not accepted as an element until 1777, when Antoine Lavoisier helped to convince the scientific community that it was an element and not a compound.

Recent Research

Adsorption configuration of sodium 2-quinoxalinecarboxylate on iron substrate: Investigation by in situ SERS, XPS and theoretical calculation., Huo, Sheng-Juan, He Jin-Mei, Chen Li-Hong, and Fang Jian-Hui , Spectrochim Acta A Mol Biomol Spectrosc, 2016 Mar 5, Volume 156, p.123-30, (2016)

Recovery and separation of sulfuric acid and iron from dilute acidic sulfate effluent and waste sulfuric acid by solvent extraction and stripping., Qifeng, Wei, Xiulian Ren, Jingjing Guo, and Yongxing Chen , J Hazard Mater, 2016 Mar 5, Volume 304, p.1-9, (2016)

Magnetically separable ternary g-C3N4/Fe3O4/BiOI nanocomposites: Novel visible-light-driven photocatalysts based on graphitic carbon nitride., Mousavi, Mitra, and Habibi-Yangjeh Aziz , J Colloid Interface Sci, 2016 Mar 1, Volume 465, p.83-92, (2016)

Newly developed Ti-Nb-Zr-Ta-Si-Fe biomedical beta titanium alloys with increased strength and enhanced biocompatibility., Kopova, Ivana, Stráský Josef, Harcuba Petr, Landa Michal, Janeček Miloš, and Bačákova Lucie , Mater Sci Eng C Mater Biol Appl, 2016 Mar 1, Volume 60, p.230-8, (2016)

Adsorption of phosphate from water by easily separable Fe3O4@SiO2 core/shell magnetic nanoparticles functionalized with hydrous lanthanum oxide., Lai, Li, Xie Qiang, Chi Lina, Gu Wei, and Wu Deyi , J Colloid Interface Sci, 2016 Mar 1, Volume 465, p.76-82, (2016)

Cobalt ferrite nanoparticles decorated on exfoliated graphene oxide, application for amperometric determination of NADH and H2O2., Ensafi, Ali A., Alinajafi Hossein A., Jafari-Asl M, Rezaei B, and Ghazaei F , Mater Sci Eng C Mater Biol Appl, 2016 Mar 1, Volume 60, p.276-84, (2016)

Removal of selenite by zero-valent iron combined with ultrasound: Se(IV) concentration changes, Se(VI) generation, and reaction mechanism., Fu, Fenglian, Lu Jianwei, Cheng Zihang, and Tang Bing , Ultrason Sonochem, 2016 Mar, Volume 29, p.328-36, (2016)

Studies on the optimum conditions using acid-washed zero-valent iron/aluminum mixtures in permeable reactive barriers for the removal of different heavy metal ions from wastewater., Han, Weijiang, Fu Fenglian, Cheng Zihang, Tang Bing, and Wu Shijiao , J Hazard Mater, 2016 Jan 25, Volume 302, p.437-46, (2016)

Immobilization of uranium by biomaterial stabilized FeS nanoparticles: Effects of stabilizer and enrichment mechanism., Shao, Dadong, Ren Xuemei, Wen Jun, Hu Sheng, Xiong Jie, Jiang Tao, Wang Xiaolin, and Wang Xiangke , J Hazard Mater, 2016 Jan 25, Volume 302, p.1-9, (2016)

Role of an organic carbon-rich soil and Fe(III) reduction in reducing the toxicity and environmental mobility of chromium(VI) at a COPR disposal site., Ding, Weixuan, Stewart Douglas I., Humphreys Paul N., Rout Simon P., and Burke Ian T. , Sci Total Environ, 2016 Jan 15, Volume 541, p.1191-9, (2016)