FeS2
2 compounds have this formula on CompoundList.
- Molar mass
- 119.97g/mol
- Monoisotopic mass
- 119.8791Da
- Atoms
- 3
- Elements
- 2
The formula FeS2 describes a molecule made of 1 iron atom and 2 sulfur atoms. It is written in Hill notation: with no carbon present, every element is listed in alphabetical order. The formula tells you which atoms are present, not how they are connected, which is why several different chemicals can share it.
Elemental composition
- Fe Iron × 146.55%55.845 × 1 = 55.845 g/mol
- S Sulfur × 253.45%32.06 × 2 = 64.120 g/mol
Compounds with the formula FeS2
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 2 of 2 compounds
Frequently asked questions
What is the molar mass of FeS2?
The molar mass of FeS2 is 119.97 g/mol, calculated from standard atomic weights for 1 iron atom and 2 sulfur atoms. The monoisotopic mass is 119.8791 Da.
How many compounds have the formula FeS2?
CompoundList lists 2 compounds with the molecular formula FeS2, including Marcasite, Pyrite. Compounds that share a formula are isomers. They contain the same atoms arranged differently, so their properties, uses and prices can be very different.