Material Safety Data Sheet
Iron(II) sulfate heptahydrate

ACC# 09870
Section 1 - Chemical Product and Company Identification

MSDS Name: Iron(II) sulfate heptahydrate
Catalog Numbers: S74260, S74262, S93247, S93248, I146-10, I146-3, I146-3LC, I146-500, I149-3, NC9654173, XXI146150KG
Green vitrol; Ferrous sulfate heptahydrate; Iron protosulfate.
Company Identification:

              Fisher Scientific
              1 Reagent Lane
              Fair Lawn, NJ 07410
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Section 2 - Composition, Information on Ingredients

CAS# Chemical Name Percent EINECS/ELINCS
7782-63-0Iron(II) sulfate heptahydrate >99 unlisted

Section 3 - Hazards Identification


Appearance: blue-green solid.
Caution! May cause eye and skin irritation. May cause respiratory tract irritation. May be harmful if swallowed. Air sensitive. Moisture sensitive.
Target Organs: Liver, gastrointestinal system, eyes, skin, mucous membranes.

Potential Health Effects
Eye: May cause mild eye irritation.
Skin: May cause skin irritation.
Ingestion: Ingestion of large amounts may cause gastrointestinal irritation. May be harmful if swallowed. Ingestion may result in irritation of the esophagus, bleeding of the stomach and ulcer formation. G.I. disturbances (e.g., gastric distress, colic, constipation, diarrhea) may occur if swallowed. In children, ingestion of large quantities of ferrous sulfate may cause vomiting, vomiting of blood, liver damage, rapid heart rate, peripheral vascular collapse.
Inhalation: May cause respiratory tract irritation.
Chronic: Repeated exposure may increase iron levels in the liver, spleen and lymphatic system. Damage may occur in the spleen and liver. Oral doses of 960 mg/kg given intermittently over a 9 week period produced jaundice in humans.

Section 4 - First Aid Measures

Eyes: In case of contact, immediately flush eyes with plenty of water for a t least 15 minutes. Get medical aid.
Skin: In case of contact, flush skin with plenty of water. Remove contaminated clothing and shoes. Get medical aid if irritation develops and persists. Wash clothing before reuse.
Ingestion: If swallowed, do not induce vomiting unless directed to do so by medical personnel. Never give anything by mouth to an unconscious person. Get medical aid.
Inhalation: If inhaled, remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Notes to Physician: Treat symptomatically and supportively.

Section 5 - Fire Fighting Measures

General Information: As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Substance is noncombustible.
Extinguishing Media: Substance is noncombustible; use agent most appropriate to extinguish surrounding fire.
Flash Point: Not applicable.
Autoignition Temperature: Not applicable.
Explosion Limits, Lower:Not available.
Upper: Not available.
NFPA Rating: (estimated) Health: 1; Flammability: 0; Instability: 0

Section 6 - Accidental Release Measures

General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks: Vacuum or sweep up material and place into a suitable disposal container. Clean up spills immediately, observing precautions in the Protective Equipment section. Avoid generating dusty conditions. Provide ventilation.

Section 7 - Handling and Storage

Handling: Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Avoid breathing dust.
Storage: Do not store in direct sunlight. Store in a cool, dry area away from incompatible substances.

Section 8 - Exposure Controls, Personal Protection

Engineering Controls: Use process enclosure, local exhaust ventilation, or other engineering controls to control airborne levels below recommended exposure limits. Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower.
Exposure Limits
Chemical Name ACGIH NIOSH OSHA - Final PELs
Iron(II) sulfate heptahydrate 1 mg/m3 TWA (as Fe) (listed under Iron salts (soluble)). 1 mg/m3 TWA (as Fe) (listed under Iron salts (soluble)). none listed
Ferrous sulfate anhydrous 1 mg/m3 TWA (as Fe) (listed under Iron salts (soluble)). 1 mg/m3 TWA (as Fe) (listed under Iron salts (soluble)). none listed

OSHA Vacated PELs: Iron(II) sulfate heptahydrate: No OSHA Vacated PELs are listed for this chemical. Ferrous sulfate anhydrous: No OSHA Vacated PELs are listed for this chemical.
Personal Protective Equipment
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.
Skin: Wear appropriate protective gloves to prevent skin exposure.
Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators: Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.

Section 9 - Physical and Chemical Properties

Physical State: Solid
Appearance: blue-green
Odor: odorless
pH: 3-5 (5% aq. sol.)
Vapor Pressure: Not available.
Vapor Density: Not available.
Evaporation Rate:Negligible.
Viscosity: Not available.
Boiling Point: 300 deg C (dec)
Freezing/Melting Point:64 deg C
Decomposition Temperature:> 300 deg C
Solubility: 48.6g/100g water at 50C
Specific Gravity/Density:1.898
Molecular Formula:FeSO4.7H2O
Molecular Weight:278.01

Section 10 - Stability and Reactivity

Chemical Stability: Stable at room temperature in closed containers under normal storage and handling conditions. FeSO4.7H2O oxidizes in moist air forming a brown coating of basic ferric sulfate. Aqueous solutions are oxidized slowly by air when cold, rapidly when hot; rate of oxidation increased by addition of base or exposure to light.
Conditions to Avoid: Light, dust generation, moisture, excess heat, prolonged exposure to air.
Incompatibilities with Other Materials: Strong oxidizing agents, bases, lead acetate, silver salts, lime water, carbonates, potassium tartrate, gold salts, potassium iodide, sodium borate, sodium tartrate, tannin.
Hazardous Decomposition Products: Oxides of sulfur, oxides of iron.
Hazardous Polymerization: Has not been reported.

Section 11 - Toxicological Information

CAS# 7782-63-0: NO8510000      
CAS# 7720-78-7: NO8500000
CAS# 7782-63-0:
     Oral, mouse: LD50 = 1520 mg/kg;
CAS# 7720-78-7:
     Oral, mouse: LD50 = 680 mg/kg;
     Oral, rat: LD50 = 319 mg/kg;
     Oral, rat: LD50 = 533 mg/kg; For Iron(II) sulfate (1:1), heptahydrate (CAS = 7782-63-0): rat LDLo: 1389 mg/kg rabbit LDLo: 2778 mg/kg. ron(II) sulfate anhydrous (CAS = 7720-78-7): Oral LDLo: 435 mg/kg Coma, BP lowering not characterized in autonomic section, jaundice.
CAS# 7782-63-0: Not listed by ACGIH, IARC, NTP, or CA Prop 65.
CAS# 7720-78-7: Not listed by ACGIH, IARC, NTP, or CA Prop 65.

Epidemiology: No information available.
Teratogenicity: No information available.
Reproductive Effects: See actual entry in RTECS for complete information.
Mutagenicity: See actual entry in RTECS for complete information.
Neurotoxicity: No information available.
Other Studies:

Section 12 - Ecological Information

No information available.

Section 13 - Disposal Considerations

Chemical waste generators must determine whether a discarded chemical is classified as a hazardous waste. US EPA guidelines for the classification determination are listed in 40 CFR Parts 261.3. Additionally, waste generators must consult state and local hazardous waste regulations to ensure complete and accurate classification.
RCRA P-Series: None listed.
RCRA U-Series: None listed.

Section 14 - Transport Information

Shipping Name: Not regulated as a hazardous material FERROUS SULFATE
Hazard Class: 9.2
UN Number: UN9125
Packing Group: III
Additional Info:REGULATED LIMIT 50 KG

Section 15 - Regulatory Information


     CAS# 7782-63-0 is not on the TSCA Inventory because it is a hydrate. It is considered to be listed if the CAS number for the anhydrous form is on the inventory (40CFR720.3(u)(2)).
     CAS# 7720-78-7 is listed on the TSCA inventory.
Health & Safety Reporting List
     None of the chemicals are on the Health & Safety Reporting List.
Chemical Test Rules
     None of the chemicals in this product are under a Chemical Test Rule.
Section 12b
     None of the chemicals are listed under TSCA Section 12b.
TSCA Significant New Use Rule
     None of the chemicals in this material have a SNUR under TSCA.
CERCLA Hazardous Substances and corresponding RQs
     CAS# 7782-63-0: 1000 lb final RQ (Listed under Ferrous sulfate); 454 kg final RQ (Listed under F      CAS# 7720-78-7: 1000 lb final RQ; 454 kg final RQ
SARA Section 302 Extremely Hazardous Substances
     None of the chemicals in this product have a TPQ.
SARA Codes
     CAS # 7782-63-0: acute.
     CAS # 7720-78-7: acute.
Section 313      No chemicals are reportable under Section 313.
Clean Air Act:
     This material does not contain any hazardous air pollutants.
     This material does not contain any Class 1 Ozone depletors.
     This material does not contain any Class 2 Ozone depletors.
Clean Water Act:
CAS# 7782-63-0 is listed as a Hazardous Substance under the CWA. CAS# 7720-78-7 is listed as a Hazardous Substance under the CWA.
     None of the chemicals in this product are listed as Priority Pollutants under the CWA.
     None of the chemicals in this product are listed as Toxic Pollutants under the CWA.
     None of the chemicals in this product are considered highly hazardous by OSHA.
     CAS# 7782-63-0 can be found on the following state right to know lists: California, (listed as Iron salts (soluble)), Pennsylvania, Minnesota, (listed as Iron salts (soluble)), Massachusetts.
     CAS# 7720-78-7 can be found on the following state right to know lists: California, New Jersey, Pennsylvania, Minnesota, (listed as Iron salts (soluble)), Massachusetts.

California Prop 65

California No Significant Risk Level: None of the chemicals in this product are listed.

European/International Regulations

European Labeling in Accordance with EC Directives
Hazard Symbols:
Risk Phrases:

     R 22 Harmful if swallowed.
     R 36/37/38 Irritating to eyes, respiratory system and skin.

Safety Phrases:

     S 26 In case of contact with eyes, rinse immediately with plenty of
     water and seek medical advice.
     S 36 Wear suitable protective clothing.

WGK (Water Danger/Protection)

     CAS# 7782-63-0: No information available.
     CAS# 7720-78-7: 1
Canada - DSL/NDSL
     CAS# 7720-78-7 is listed on Canada's DSL List.
Canada - WHMIS
     This product has a WHMIS classification of D2B.
Canadian Ingredient Disclosure List
     CAS# 7782-63-0 (listed as Iron salts (soluble)) is listed on the Canadian Ingredient Disclosure List.
     CAS# 7720-78-7 is listed on the Canadian Ingredient Disclosure List.

Section 16 - Additional Information

MSDS Creation Date: 12/04/1997
Revision #5 Date: 10/05/2004

The information above is believed to be accurate and represents the best information currently available to us. However, we make no warranty of merchantability or any other warranty, express or implied, with respect to such information, and we assume no liability resulting from its use. Users should make their own investigations to determine the suitability of the information for their particular purposes. In no event shall Fisher be liable for any claims, losses, or damages of any third party or for lost profits or any special, indirect, incidental, consequential or exemplary damages, howsoever arising, even if Fisher has been advised of the possibility of such damages.