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CAS No.: 1310-45-8
Formula: Fe4H2O22S5
Exact Mass: 737.50400
Molecular Weight: 737.70800
PSA: 489.32000
LogP: -1.64960
iron(3+),dihydroxide,pentasulfate 1310-45-8 MSDS

Section 1. Chemical Product and Company Identification
    Ferric Subsulfate Solution
    Common Name/
    Trade Name
    Commercial Name(s)
    Chemical Name
    Chemical Family
    Ferric Subsulfate Solution

Section 4. First Aid Measures
    Eye Contact        Check for and remove any contact lenses. In case of contact, immediately flush eyes with plenty of water for    
    at least 15 minutes. Cold water may be used. Get medical attention if irritation occurs.
    Skin Contact        Wash with soap and water. Cover the irritated skin with an emollient. Get medical attention if irritation    
    develops. Cold water may be used.
    Serious Skin Contact        Not available.    
    Inhalation        If inhaled, remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.    
    Get medical attention.
    Serious Inhalation        Not available.    
    Ingestion        If swallowed, do not induce vomiting unless directed to do so by medical personnel. Never give anything by    
    mouth to an unconscious person. Loosen tight clothing such as a collar, tie, belt or waistband. Get medical
    attention immediately.
    Serious Ingestion        Not available.    

Section 5. Fire and Explosion Data
    Flammability of the Product Non-flammable.
    Auto-Ignition Temperature Not applicable.
    Flash Points        Not applicable.    
    Flammable Limits        Not applicable.    
    Products of Combustion        Not available.    
    Fire Hazards in Presence of Not applicable.
    Various Substances
    Explosion Hazards in Presence Non-explosive in presence of open flames and sparks, of shocks.
    of Various Substances
    Fire Fighting Media        Not applicable.    
    and Instructions
    Special Remarks on        Not available.    
    Fire Hazards
    Special Remarks on Explosion Not available.

Section 6. Accidental Release Measures
    Small Spill        Dilute with water and mop up, or absorb with an inert dry material and place in an appropriate waste disposal    
    container. Finish cleaning by spreading water on the contaminated surface and dispose of according to local
    and regional authority requirements.
    Large Spill        Stop leak if without risk. Do not get water inside container. Do not touch spilled material. Use water spray to    
    on disposal. Finish cleaning by spreading water on the contaminated surface and allow to evacuate through
    the sanitary system. Be careful that the product is not present at a concentration level above TLV. Check
    TLV on the MSDS and with local authorities.
    Ferric Subsulfate Solution

Section 7. Handling and Storage
    Precautions        Do not ingest. Do not breathe gas/fumes/ vapor/spray. Wear suitable protective clothing. If ingested, seek    
    medical advice immediately and show the container or the label.
    Storage        Keep container tightly closed. Keep container in a cool, well-ventilated area. Sensitive to light. Store in    
    light-resistant containers. Product may freeze/crystallize at very cool temperatures. Crystals will redissolve
    upon gentle heating.

Section 8. Exposure Controls/Personal Protection
    Engineering Controls        Provide exhaust ventilation or other engineering controls to keep the airborne concentrations of vapors below    
    their respective threshold limit value.
    Personal Protection        Safety glasses. Lab coat. Gloves (impervious). Respiratory protection is not necessary for normal handling.    
    Good room ventilation or use of local exhaust (fume hood) is sufficient. Use a vapor respirator under
    conditions where exposure to the substance is apparent (e.g. generation of high concentrations of mist or
    vapor, inadequate ventilation, development of respiratory tract irritation), and engineering controls are not
    feasible. Be sure to use an approved/certified respirator or equivalent.
    Personal Protection in Case of Splash goggles. Full suit. Boots. Gloves. Suggested protective clothing might not be sufficient; consult a
    a Large Spill        specialist BEFORE handling this product.    
    TWA: 1 (mg(Fe)/m3) from ACGIH (TLV) [United States]
    Exposure Limits
    Consult local authorities for acceptable exposure limits.

Section 9. Physical and Chemical Properties
    Physical state and appearance Liquid.        Odor        Slight.    
    Taste        Astringent. sour (Strong.)    
    Molecular Weight        Not applicable.    
    Color        Brownish-red.    
    pH (1% soln/water)        pH of actual Ferric Subsulfate solution: Acidic to    
    Boiling Point        The lowest known value is 100°C (212°F) (Water).    
    Not available.
    Melting Point
    Critical Temperature        Not available.    
    1.548 @ 25 C (Water = 1)
    Specific Gravity
    Vapor Pressure        The highest known value is 2.3 kPa (@ 20°C) (Water) .    
    Vapor Density        The highest known value is 0.62 (Air = 1) (Water).    
    Volatility        Not available.    
    Odor Threshold        Not available.    
    Not available.
    Water/Oil Dist. Coeff.
    Ionicity (in Water)        Not available.    
    See solubility in water.
    Dispersion Properties
    Solubility        Easily soluble in cold water, hot water.    

Section 10. Stability and Reactivity Data
    Stability        The product is stable.    
    Not available.
    Instability Temperature
    Conditions of Instability        Light, incompatible materials    
    Incompatibility with various        Not available.    
    Corrosivity        Non-corrosive in presence of glass.    
    Ferric Subsulfate Solution
    Special Remarks on        Sensitive to light.    
    No other information found at this time
    Special Remarks on        Not available.    
    Polymerization        Will not occur.    

Section 11. Toxicological Information
    Routes of Entry        Absorbed through skin. Eye contact.    
    Toxicity to Animals        LD50: Not available.    
    LC50: Not available.
    Chronic Effects on Humans May cause damage to the following organs: blood, kidneys, liver, lymphatic system, pancreas.
    Other Toxic Effects on        Slightly hazardous in case of skin contact (irritant), of ingestion, of inhalation.    
    Special Remarks on        Not available.    
    Toxicity to Animals
    Special Remarks on        Not available.    
    Chronic Effects on Humans
    Special Remarks on other        Acute Potential Health Effects:    
    Toxic Effects on Humans        Skin: May cause skin irritation, but no adverse effects are expected.    
    Eyes: Splashes may cause eye irritation.
    Inhalation: Vapor may cause respiratory tract irritation.
    Ingestion: May be harmful if swallowed. There is a low toxicity in small quantities, but larger doses may lead
    to iron poisoning and cause gastrointestinal tract irritation (gastroenteritis) with nausea, retching & vomiting,
    abdominal pain, hypermotility, diarrhea, colic or constipation,and black stool. Liver damage and renal failure
    have also been reported from iron poisoning. Pink urine discoloration is a strong indicator of iron poisoning.
    Iron poisoning may also affect behavior/Central Nervous System (somnolence -general depressed activity,
    seizures, irritability, lethargy, restlessness, drowsiness, hyporeflexia, confusion, coma), respiration,
    cardiovascular system (weak pulse, hypotension), metabolism (metabolic acidosis), and blood (leukocytosis).
    Chronic Potential Health Effects:
    Ingestion: Repeated high exposures may lead to iron build-up in the body (particularly in the liver, spleen, and
    lymphatic system) causing nausea, vomiting, stomach pain, constipation or diarrhea, black bowel movements,
    mild lethargy, irritability, leukocytosis, normocytic anemia, hemochromatosis in the Kupfer cells of the liver or
    in the recticuloendothial cells of the bone marrow. Damage may occur to the spleen, lymphatic system, and
    liver (cirrhosis, hemsiderosis). Fibrosis or other damage may also occur to the pancreas. Symptoms may
    include hypoglycemia, hyperglycemia.
    Eyes: Prolonged eye contact may cause brownish discoloration of eyes.
    Toxicity information was exprapolated from Ferric Sulfate, Ferrous Sulfate, and Iron)

Section 12. Ecological Information
    Ecotoxicity        Not available.    
    BOD5 and COD        Not available.    
    Products of Biodegradation        Possibly hazardous short term degradation products are not likely. However, long term degradation products    
    may arise.
    Toxicity of the Products        The products of degradation are less toxic than the product itself.    
    of Biodegradation
    Special Remarks on the        Not available.    
    Products of Biodegradation
    Ferric Subsulfate Solution

Section 13. Disposal Considerations
    Waste Disposal        Waste must be disposed of in accordance with federal, state and local environmental    
    control regulations.

Section 14. Transport Information
    DOT Classification
    Not a DOT controlled material (United States).
    Not applicable.
    Not applicable.
    Special Provisions for
    DOT (Pictograms)

Section 15. Other Regulatory Information and Pictograms
    TSCA 8(b) inventory: Ferric subsulfate; Water
    Federal and State
    California        California prop. 65: This product contains the following ingredients for which the State of California has    
    Proposition 65        found to cause cancer which would require a warning under the statute: No products were found.    
    California prop. 65: This product contains the following ingredients for which the State of California has
    found to cause birth defects which would require a warning under the statute: No products were found.
    Other Regulations        OSHA: Hazardous by definition of Hazard Communication Standard (29 CFR 1910.1200).    
    WHMIS (Canada) Not controlled under WHMIS (Canada).
    Other Classifications
    DSCL (EEC)        Not Available        Not Available    
    Health Hazard
    HMIS (U.S.A.)        1 National Fire Protection    
    0 Flammability
    0 Association (U.S.A.)
    Fire Hazard
    1 0 Reactivity
    Specific hazard
    Personal Protection
    WHMIS (Canada)
    DSCL (Europe)
    TDG (Canada)
    ADR (Europe)
    Ferric Subsulfate Solution
    Protective Equipment
    Gloves (impervious).
    Lab coat.
    Not applicable.


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