MATERIAL SAFETY DATA SHEET







I       PRODUCT IDENTIFICATION



Trade Name:               Iron Sulfide                                          Synonyms:                  Iron sulfide, ferric sulfide

Chemical Family:          Metal sulfide                                         CAS #:                     12068-85-8

Formula:                  FeS2                                                  Molecular Weight:          119.87





II      HAZARDOUS INGREDIENTS



Hazardous Components:              OSHA/PEL:                  ACGIH/TLV:                 Other:            Percent:

Iron Sulfide                       N/E                        N/E                        N/E               0.0-100.0



Sec.302: No      Sec.304: No       Sec.313: No





III     PHYSICAL DATA



                                                                                                     450 oC

Boiling Point 760 mm Hg:           N/A                                          Melting Point:

Solubility in H2O (%):             Insoluble                                    Appearance and Odor: Yellow powder, no odor

Specific Gravity:                  4.87 gm/cc                                   Physical State:      Solid





IV      FIRE AND EXPLOSION HAZARDS DATA



Flash Point (Method): N/E or N/A (Non-flammable)

Explosive Limits: LEL: N/A      UEL: N/A



Extinguishing Media: Use: not applicable. Use suitable extinguishing agent for surrounding materials and type of fire.

Special Firefighting Procedures: Firefighters must wear full face, self-contained breathing apparatus with full protective clothing to

prevent contact with skin and eyes. Fumes from fire are hazardous. Isolate runoff to prevent environmental pollution.



Unusual Fire & Explosion Hazards: When heated to decomposition, iron sulfide may emit toxic fumes of SOx.





V       HEALTH HAZARD INFORMATION



Routes of Entry: Inhalation, Skin, Eyes, and Ingestion

Target Organs: May affect the liver and kidney.



Carcinogenicity: NTP? No,       IARC? No,            OSHA Regulated? No

Recommended Exposure Limits: See Section II

LD50/LC50: No toxicity data recorded.



Medical Conditions Generally Aggravated by Exposure: Pre-existing respiratory disorders.



Health Hazards (Acute and Chronic):



          To the best of our knowledge the chemical, physical and toxicological properties of iron sulfide have not been thoroughly

investigated and recorded.

          Iron compounds have varying toxicity. Some iron compounds are suspected carcinogens. In general, ferrous compounds are

more toxic than ferric compounds. Acute exposure to excessive levels of ferrous compounds can cause liver and kidney damage,

altered respiratory rates and convulsions (Sax, Dangerous Properties of Industrial Materials, eighth edition).

         Sulfides have variable toxicity. Sulfides of the heavy metals are generally insoluble and hence have little toxic action except

through liberation of hydrogen sulfide (Sax, Dangerous Properties of Industrial Materials, eighth edition).



Inhalation: Acute: Inhalation of dust or powder may cause irritation to the respiratory system and possibly acute iron poisoning.

Large amounts of iron may cause iron pneumoconiosis.

Chronic: Inhalation of finely divided powder may cause pulmonary fibrosis. May cause chronic iron poisoning and pathological

deposition of iron in the body tissues.



Ingestion: Acute: No acute health effects recorded.

Chronic: May cause damage to the liver.



Skin: Acute: May cause irritation.

Chronic: No chronic effects recorded.



Eyes: Acute: May cause irritation.

Chronic: No chronic health effects recorded.



Signs and Symptoms of Exposure:



Inhalation: May cause a red, dry throat and coughing. Acute iron poisoning may cause: biphasic shock, rapid increase in respiration

and pulse rate, congestion of blood vessels which may lead to hypotension, pallor and drowsiness. Chronic iron poisoning may cause:

hemorrhagic necrosis of the gastrointestinal tract, hepatotoxicity, metabolic acidosis, prolonged blood clotting time, elevation of

plasm levels of serotonin and histamine. Symptoms of pathological deposition or fibrosis of the pancreas, diabetes, mellitus and liver

cirrhosis.



Ingestion: No acute or chronic health effects recorded.

Skin: May cause redness and itching.

Eye: May cause redness, itching and watering.



EMERGENCY AND FIRST AID PROCEDURES:



INHALATION: Remove victim to fresh air, keep warm and quiet, give oxygen if breathing is difficult and seek medical attention if

symptoms persist.

INGESTION: Give 1-2 glasses of milk or water and induce vomiting, seek medical attention. Never induce vomiting or give

anything by mouth to an unconscious person.

SKIN: Remove contaminated clothing, brush material off skin, wash affected area with mild soap and water. Seek medical attention

if symptoms persist.

EYES: Flush eyes with lukewarm water, lifting upper and lower eyelids, for at least 15 minutes. Seek medical attention if symptoms

persist.





VI       REACTIVITY DATA



Stability: Stable

Conditions to Avoid: None



Incompatibilities (Materials to Avoid): None recorded

Hazardous Decomposition Products: Oxides of sulfur

Conditions to Avoid: None

VII      SPILL OR LEAK PROCEDURES



Steps to Be Taken in Case Material Is Released or Spilled: Wear appropriate respiratory and protective equipment specified in

Section VIII. Isolate spill area and provide ventilation. Vacuum up spill using a high efficiency particulate absolute (HEPA) air filter

and place in a closed container for proper disposal. Take care not to raise dust.



Waste Disposal Method: Disposal must be made in accordance with Federal, State and Local regulations.

Storage and Handling Considerations: Store in a cool, dry area, in a tightly sealed container. Wash thoroughly after handling.





VIII     SPECIAL PROTECTION INFORMATION



Respiratory Protection (Specify Type): NIOSH approved Dust, mist, vapor respirator.

Ventilation: Local Exhaust: To maintain concentration at or below the PEL, TLV.     Mechanical: Recommended

Special: None                                                                       Other: None



Protective Gloves: Rubber Gloves                                                           Eye Protection: Safety Glasses



Other Equipment: Normal lab wear suitable to prevent contamination.

Work/Hygienic/Maintenance Practices: Implement engineering and work practice controls to reduce and maintain concentration of

exposure at low levels. Use good housekeeping and sanitation practices. Do not use tobacco or food in work area. Wash thoroughly

before eating and smoking. Do not blow dust off clothing or skin with compressed air.





IX       SPECIAL PRECAUTIONS



        Some of the chemicals listed herein are research or experimental substances which may be toxic, as defined by various

governmental regulations. In accordance with Environmental Protection Agency regulation and the Toxic Substances Control Act

(TSCA), these materials should only be handled by, or under the direct supervision of, a "technically qualified individual", as defined

in 40 CFR 710.2(aa).



         The above information is accurate to the best of our knowledge. However, since, data, safety standards, and government

regulation are subject to change, and the conditions of handling and use or misuse are beyond our control, ESPI MAKES NO WAR-

RANTY, NEITHER EXPRESSED NOR IMPLIED, WITH RESPECT TO THE COMPLETENESS OR CONTINUING ACCURACY

OF THE INFORMATION CONTAINED HEREIN, AND DISCLAIMS ALL LIABILITY FOR RELIANCE THEREON. Users

should satisfy themselves that they have all current data relevant to their particular use.





Issued By:        S. Dierks

Dated:            January 1995