Iron(II) sulfate heptahydrate
Iron(II) sulfate heptahydrate (CAS 7782-63-0), with the linear formula FeSO4·7H2O and a molecular weight of 278.01 g/mol, is a hydrated inorganic salt. It appears as a crystalline solid and is commonly used in chemical synthesis and as a catalyst. TSS supplies this compound, ensuring reliable quality for various industrial and laboratory applications.
- IUPAC
- Ferrous sulfate heptahydrate

Chemical Synthesis
Iron(II) sulfate heptahydrate serves as a reagent or precursor in various organic and inorganic synthesis pathways. Its iron content can be leveraged in catalytic processes and the preparation of other iron compounds.
Catalysis
This compound can function as a catalyst or a catalyst precursor in specific chemical reactions. Its redox properties are often exploited in industrial catalytic applications, contributing to efficient chemical transformations.
Laboratory Reagent
As a standard laboratory reagent, Iron(II) sulfate heptahydrate is used for analytical purposes and in educational experiments. Its well-defined properties make it suitable for a range of research and development activities.
| Molecular weight | 278.01 |
|---|---|
| Linear formula | FeSO4 · 7H2O |
| Assay | 98.0-102.5% |
| Density | 1.898 g/mL at 25 °C(lit.) |
| Vapour pressure | 14.6 mmHg (25 °C) |
| Suitability | meets USP testing specifications |

Hazard statements
- H302Harmful if swallowed
- H315Causes skin irritation
- H319Causes serious eye irritation
Precautionary statements
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Transport (UN / ADR) | UN 3077 9 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-36/38 |
| Safety statements (S) | 46 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Iron(II) sulfate heptahydrate used for?
+
Iron(II) sulfate heptahydrate is primarily used in chemical synthesis and as a catalyst. It also finds applications as a laboratory reagent.
What is the CAS number and formula for Iron(II) sulfate heptahydrate?
+
The CAS number is 7782-63-0, and the linear formula is FeSO4·7H2O.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies Iron(II) sulfate heptahydrate with an assay of 98.0-102.5%. It meets USP testing specifications. TSS does not represent this product as USP, BP, or EP grade unless explicitly stated in the product documentation.
How should Iron(II) sulfate heptahydrate be handled?
+
Handle with appropriate personal protective equipment including a dust mask (type N95 US), eyeshields, and gloves. It is harmful if swallowed and causes skin and eye irritation (H302-H315-H319). Avoid dust formation and ensure adequate ventilation.
Is Iron(II) sulfate heptahydrate a controlled substance?
+
The provided data does not indicate that Iron(II) sulfate heptahydrate is a controlled substance.
How is Iron(II) sulfate heptahydrate packed and shipped?
+
Iron(II) sulfate heptahydrate is available for export globally by TSS. Specific packaging details depend on order size and destination, adhering to international shipping regulations for chemical substances, including UN 3077 classification.
How can I request a quote or sample?
+
Please contact our sales team through the TSS website or by phone to request a quotation or a sample of Iron(II) sulfate heptahydrate.
▶ Related products

Benzeneruthenium(II) chloride dimer
Ru2(C6H6)2Cl4
Catalysis & Inorganic
Benzoylferrocene
C17H14FeO
Catalysis & Inorganic
Benzyldiphenylphosphine
C6H5CH2P(C6H5)2
Catalysis & Inorganic
Beryllium
Be
Catalysis & Inorganic
Beryllium oxide
BeO
Catalysis & Inorganic![Bicyclo[2.2.1]hepta-2,5-diene-rhodium(I) chloride dimer — chemical structure, CAS 12257-42-0; Catalysis & Inorganic, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F12257-42-0.png&w=3840&q=75)
Bicyclo[2.2.1]hepta-2,5-diene-rhodium(I) chloride dimer
Catalysis & Inorganic
![Bis[(10,11-η)-5-[(11bS)-dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-yl- κP4]-5H-dibenz[b,f]azepine]rhodium(I) tetrafluorobo — chemical structure, CAS 1228149-03-8; Catalysis & Inorganic, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F1228149-03-8.png&w=3840&q=75)
Bis[(10,11-η)-5-[(11bS)-dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-yl- κP4]-5H-dibenz[b,f]azepine]rhodium(I) tetrafluorobo
1-d:1′
Catalysis & Inorganic![Bis[(2-dimethylamino)phenyl]amine nickel(II) chloride (C16H20ClN3Ni) — chemical structure, CAS 1033772-47-2; Catalysis & Inorganic, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F1033772-47-2.png&w=3840&q=75)
Bis[(2-dimethylamino)phenyl]amine nickel(II) chloride
C16H20ClN3Ni
Catalysis & Inorganic▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis