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FERROUS SULFATE

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The Chemical Identifier fields include common identification numbers, the NFPA diamond U.S. Department of Transportation hazard labels, and a general description of the chemical. The information in CAMEO Chemicals comes from a variety of data sources.
CAS Number UN/NA Number
  • 7720-78-7
  • 7782-63-0   (heptahydrate)
none
DOT Hazard Label USCG CHRIS Code
data unavailable
NIOSH Pocket Guide International Chem Safety Card
none none
NFPA 704
data unavailable
General Description
A greenish or yellow-brown crystalline solid. Density 15.0 lb /gal. Melts at 64°C and loses the seven waters of hydration at 90°C. The primary hazard is the threat to the environment. Immediate steps should be taken to limit its spread to the environment. Used for water or sewage treatment, as a fertilizer ingredient.

The Hazard fields include special hazard alerts air and water reactions, fire hazards, health hazards, a reactivity profile, and details about reactive groups assignments and potentially incompatible absorbents. The information in CAMEO Chemicals comes from a variety of data sources.
Reactivity Alerts
none
Air & Water Reactions
Water soluble
Fire Hazard
No information available.
Health Hazard
INGESTION: abdominal pain, retching, diarrhea, dehydration, shock, pallor, cyanosis, rapid or weak pulse, shallow respiration, low blood pressure. (USCG, 1999)
Reactivity Profile
Weak inorganic reducing agents, such as FERROUS SULFATE, react with oxidizing agents to generate heat and products that may be flammable, combustible, or otherwise reactive.
Belongs to the Following Reactive Group(s)
Potentially Incompatible Absorbents

No information available.

The Response Recommendation fields include isolation and evacuation distances, as well as recommendations for firefighting, non-fire response, protective clothing, and first aid. The information in CAMEO Chemicals comes from a variety of data sources.
Isolation and Evacuation
No information available.
Firefighting
No information available.
Non-Fire Response
No information available.
Protective Clothing
Mask if dust is present. (USCG, 1999)
DuPont Tychem® Suit Fabrics
No information available.
First Aid
INGESTION: give milk immediately and then induce vomiting by stroking the pharynx with a blunt object such as a spoon handle. Gastric lavage with 1 pint of 5% aqueous solution of mono- or disodium phosphate if promptly available; otherwise use water. Get medical attention. (USCG, 1999)

The Physical Property fields include properties such as vapor pressure and boiling point, as well as explosive limits and toxic exposure thresholds The information in CAMEO Chemicals comes from a variety of data sources.

Note: For Vapor Density and Specific Gravity, comparing the value to 1.0 can tell you if the chemical will likely sink/rise in air or sink/float in fresh water (respectively). Short phrases have been added to those values below as an aid. However, make sure to also consider the circumstances of a release. The Vapor Density comparisons are only valid when the gas escaping is at the same temperature as the surrounding air itself. If the chemical is escaping from a container where it was pressurized or refrigerated, it may first escape and behave as a heavy gas and sink in the air (even if it has a Vapor Density value less than 1). Also, the Specific Gravity comparisons are for fresh water (density 1.0 g/mL). If your spill is in salt water (density about 1.027 g/mL), you need to adjust the point of comparison. There are some chemicals that will sink in fresh water and float in salt water.
Chemical Formula:
  • FeSO4.7H2O
Flash Point: data unavailable
Lower Explosive Limit (LEL): data unavailable
Upper Explosive Limit (UEL): data unavailable
Autoignition Temperature: Not flammable (USCG, 1999)
Melting Point: data unavailable
Vapor Pressure: data unavailable
Vapor Density (Relative to Air): data unavailable
Specific Gravity: 1.9 at 59°F (USCG, 1999) - Denser than water; will sink
Boiling Point: data unavailable
Molecular Weight: 169.96 (USCG, 1999)
Water Solubility: data unavailable
Ionization Energy/Potential: data unavailable
IDLH: data unavailable

AEGLs (Acute Exposure Guideline Levels)

No AEGL information available.

ERPGs (Emergency Response Planning Guidelines)

No ERPG information available.

PACs (Protective Action Criteria)

Chemical PAC-1 PAC-2 PAC-3
Ferrous sulfate (7720-78-7) 8.2 mg/m3 41 mg/m3 250 mg/m3
Ferrous sulfate heptahydrate (7782-63-0) 15 mg/m3 170 mg/m3 990 mg/m3
(DOE, 2018)

The Regulatory Information fields include information from the U.S. Environmental Protection Agency's Title III Consolidated List of Lists, the U.S. Cybersecurity and Infrastructure Security Agency's Chemical Facility Anti-Terrorism Standards, and the U.S. Occupational Safety and Health Administration's Process Safety Management of Highly Hazardous Chemicals Standard List (see more about these data sources).

EPA Consolidated List of Lists

Regulatory Name CAS Number/
313 Category Code
EPCRA 302
EHS TPQ
EPCRA 304
EHS RQ
CERCLA RQ EPCRA 313
TRI
RCRA
Code
CAA 112(r)
RMP TQ
Ferrous sulfate 7720-78-7 1000 pounds
Ferrous sulfate 7782-63-0 1000 pounds

(EPA List of Lists, 2022)

CISA Chemical Facility Anti-Terrorism Standards (CFATS)

No regulatory information available.

OSHA Process Safety Management (PSM) Standard List

No regulatory information available.

This section provides a listing of alternate names for this chemical, including trade names and synonyms.
  • COPPERAS
  • DURETTER
  • DUROFERON
  • FEOSOL
  • FEOSPAN
  • FER-IN-SOL
  • FERRALYN
  • FERRO-GRADUMET
  • FERRO-THERON
  • FERROMYN
  • FERROSULFATE
  • FERROUS SULFATE
  • FERROUS SULFATE (1:1)
  • FERROUS SULFATE HEPTAHYDRATE
  • FERROUS SULPHATE
  • FERSOLATE
  • FESO4: FERROUS SULFATE, IRON(II) SULFATE
  • GREEN SALTS
  • GREEN VITRIOL
  • IRON (OUS) SULFATE
  • IRON MONOSULFATE
  • IRON PROTOSULFATE
  • IRON SULFATE (1:1)
  • IRON SULFATE (FESO4)
  • IRON SULFATE (FESO4) HEPTAHYDRATE
  • IRON SULFATE HEPTAHYDRATE
  • IRON SULFATE HEPTAHYDRATE (FESO4.7H2O)
  • IRON VITRIOL
  • IRON(2+) SULFATE
  • IRON(2+) SULFATE (1:1)
  • IRON(2+) SULFATE HEPTAHYDRATE
  • IRON(II) SULFATE
  • IRON(II) SULFATE HEPTAHYDRATE
  • IRONATE
  • IROSPAN
  • IROSUL
  • KESUKA
  • ODOPHOS
  • PRESFERSUL
  • QUICKFLOC
  • QUICKFLOC (SALT)
  • SLOW-FE
  • SULFERROUS
  • SULFURIC ACID IRON SALT (1:1)

Version 3.0.0