Basic information
- Name:
Ferrous sulfate heptahydrate
- CAS No.:
7782-63-0
- Molecular Structure:
- Formula:
- FeSO4.7(H2O)
- Molecular Weight:
- 278.05
- Synonyms:
- Sulfuricacid, iron(2+) salt (1:1), heptahydrate (8CI,9CI);FerroHepta;Iron(Ⅱ)sulfate heptahydrate;Ferrous sulfateheptahydrate;Iron protosulfate;Iron sulfate (FeSO4) heptahydrate;Ironsulfate heptahydrate;Iron sulfate heptahydrate (FeSO4.7H2O);Iron(2+) sulfateheptahydrate;Iron(II) sulfate heptahydrate;Ironate;Ironfer;Irosul;Presfersul;Sulfuric acid, iron(2+)salt, heptahydrate (1:1:7);
- EINECS:
- 238-676-6
- Density:
- 0.999 g/mL at 25 °C
- Melting Point:
- 64 °C
- Boiling Point:
- 330 °C at 760 mmHg
- Solubility:
- 25.6 g/100 mL (20 °C) in water
- Appearance:
- light blue or light blue-green solid
- Hazard Symbols:
Xn, 
Xi- Risk Codes:
- 22
- Safety Description:
- 36/37/39 Details
- Transport Information:
- UN 9125
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Chemistry
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IUPAC Name: Iron(2+) sulfate heptahydrate
Molecular Formula: FeSO4.7(H2O)
Molecular Weight: 278.01 g/mol
SMILES: S(=O)(=O)([O-])[O-].O.[Fe+2].O.O.O.O.O.O
InChI: InChI=1/Fe.H2O4S.7H2O/c;1-5(2,3)4;;;;;;;/h;(H2,1,2,3,4);7*1H2/q+2;;;;;;;;/p-2
Classification Code: Agricultural Chemical; Growth regulator / Fertilizer; Hematinic; Herbicide; Mutation data
Stability: Stable. Substances to be avoided include strong oxidizing agents. Air and moisture sensitive.
storage temperature: 2-8 °C
solubility: 25.6 g/100 mL (20 °C)
Water Solubility: 25.6 g/100 mL (20 °C)
Sensitive: Air Sensitive & Hygroscopic
Density: 0.999 g/mL at 25 °C
Enthalpy of Vaporization: 62.94 kJ/mol
Boiling Point: 330 °C at 760 mmHg
Melting Point: 64 °C
Vapour Pressure of Ferrous sulfate heptahydrate (CAS NO.7782-63-0): 3.35E-05 mmHg at 25 °C
Toxicity Data With Reference
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| mouse | LD50 | intraperitoneal | 245mg/kg (245mg/kg) | Arzneimittel-Forschung. Drug Research. Vol. 17, Pg. 748, 1967. | |
| mouse | LD50 | intravenous | 51mg/kg (51mg/kg) | BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) LUNGS, THORAX, OR RESPIRATION: RESPIRATORY DEPRESSION CARDIAC: OTHER CHANGES | American Journal of the Medical Sciences. Vol. 230, Pg. 491, 1955. |
| mouse | LD50 | oral | 1520mg/kg (1520mg/kg) | American Journal of the Medical Sciences. Vol. 230, Pg. 491, 1955. | |
| rabbit | LDLo | intravenous | 99mg/kg (99mg/kg) | Environmental Quality and Safety, Supplement. Vol. 1, Pg. 1, 1975. | |
| rabbit | LDLo | oral | 2778mg/kg (2778mg/kg) | Environmental Quality and Safety, Supplement. Vol. 1, Pg. 1, 1975. | |
| rabbit | LDLo | subcutaneous | 279mg/kg (279mg/kg) | Environmental Quality and Safety, Supplement. Vol. 1, Pg. 1, 1975. | |
| rat | LDLo | oral | 1389mg/kg (1389mg/kg) | Environmental Quality and Safety, Supplement. Vol. 1, Pg. 1, 1975. | |
| rat | LDLo | rectal | 697mg/kg (697mg/kg) | Environmental Quality and Safety, Supplement. Vol. 1, Pg. 1, 1975. |
Safety Profile
Poison by intravenous, intraperitoneal, and subcutaneous routes. Moderately toxic by ingestion and rectal routes. Mutation data reported. When heated to decomposition it emits toxic fumes of SOx.
Hazard Codes: 
Xn, 
Xi
Risk Statements: 22
R22:Harmful if swallowed.
Safety Statements: 36/37/39
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection.
RIDADR: UN 9125
RTECS of Ferrous sulfate heptahydrate (CAS NO.7782-63-0): NO8510000
Standards and Recommendations
OSHA PEL: TWA 1 mg(Fe)/m3
ACGIH TLV: TWA 1 mg(Fe)/m3
Specification
Ferrous sulfate heptahydrate (CAS NO.7782-63-0), its Synonyms are Fesofor ; Fesotyme ; Haemofort ; Iron protosulfate ; Iron sulfate heptahydrate ; Iron(2+) sulfate (1:1) heptahydrate ; Iron(2+) sulfate heptahydrate ; Ironate ; Irosul ; Melanterite mineral ; Presfersul ; Siderotil mineral ; Szomolnikite mineral ; Tauriscite mineral ; Iron(II) sulfate (1:1), heptahydrate ; Iron(II) sulfate heptahydrate ; Sulfuric acid, iron(2+) salt (1:1), heptahydrate . It is light blue or light blue-green solid.