Molekula
Iron(II) Sulfide, 99.9%
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Iron(II) Sulfide (FeS) is a black, crystalline inorganic compound primarily used in chemical synthesis, metallurgy, and as a sulfur source in laboratory reactions. Documented applications include generating hydrogen sulfide in the laboratory, pigmenting glass, ceramics and paints, and use in lubricant coatings and anodes. It is also employed in the production of iron sulfide pigments and as a reducing agent in certain industrial processes. This high-purity Iron(II) Sulfide (99.9%) has a CAS number of 1317-37-9, a molecular weight of 87.91 g/mol, and requires storage at ambient conditions. It carries no signal word under standard safety classifications. Molekula supplies Iron(II) Sulfide from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | grey to brown to black powder |
| Identification (IR) | Conforms to Reference |
| Residue on sieve | < 13.5% (325 Mesh) |
| Sulphide test | Complies |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Dark-brown or black metallic pieces, sticks, or granules |
| Melting Point | 1194 °C |
Source: PubChem CID 14828 (HSDB)
Identification
| Property | Value |
|---|---|
| SKU | 90031489 |
| CAS Number | 1317-37-9 |
| IUPAC Name | sulfanylideneiron |
| EC Number | 215-268-6 |
| Molecular Formula | FeS |
| Molecular Weight | 87.91 |
| Exact Mass | 87.907 |
| SMILES | S=[Fe] |
| InChIKey | MBMLMWLHJBBADN-UHFFFAOYSA-N |
| InChI | InChI=1S/Fe.S |
| PubChem CID | 14828 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 28309090 |
| Tariff Code | 2830901100 |
Safety & GHS
Hazard statements
- EUH031 Contact with acids liberates toxic gas
Precautionary statements
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, English (US), French, German, Italian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- Black iron sulfide
- CI 77540
- Ferrous monosulfide
- ferrous sulfide
- Ferrous sulfide (FeS)
- Iron monosulfide
- Iron monosulfide (FeS)
- Iron protosulfide
- Iron sulfuret
- Iron sulphide
Frequently asked questions
What is Iron(II) Sulfide (FeS) commonly used for?
Iron(II) Sulfide is primarily used in pyrotechnics, as a sulfur source in chemical synthesis, and in the production of iron sulfide pigments for paints and coatings.
What is the molecular formula and molecular weight of Iron(II) Sulfide?
The molecular formula is **FeS**, and the molecular weight is **87.91 g/mol**.
What is the purity grade of Molekula’s Iron(II) Sulfide?
Molekula supplies Iron(II) Sulfide at a purity grade of **99.9%**.
How should Iron(II) Sulfide be stored?
Store Iron(II) Sulfide in a **dry, well-ventilated area at ambient temperature**, away from moisture and oxidizing agents.
Can Molekula supply Iron(II) Sulfide in bulk quantities?
Yes, Molekula can supply Iron(II) Sulfide in bulk, with quantities tailored to your requirements—please contact us for pricing and logistics details.
What documentation comes with an order of Iron(II) Sulfide?
Each order includes a **Certificate of Analysis (CoA)**, Material Safety Data Sheet (MSDS), and a packing list with batch-specific details.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.