MATERIAL SAFETY DATA SHEET

I.   PRODUCT IDENTIFICATION

Manufacturer/Supplier:

ESPI Metals

1050 Benson Way, Ashland, OR 97520

Toll Free (800) 638-2581 * Fax (541) 488-8313

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Product Name:     Manganese Antimonide

Formula:             Mn₂Sb

CAS Number:       12032-97-2

II.   HAZARDOUS INGREDIENTS

None

III.   PHYSICAL DATA

Boiling Point:                   N/E or N/A

Melting Point:                  N/E or N/A

Specific Gravity:             N/E 

Solubility in H₂O:            N/E

Appearance and Odor:   Pieces, no odor

IV.   FIRE AND EXPLOSION HAZARDS DATA

Flash Point (Method Used):  N/E or N/A

Method Used:  Non-Flammable

Flammable Limits:  Upper:  N/A       Lower:  N/A

Extinguishing Media:  Use:  Not Applicable.  Use suitable extinguishing media for surrounding materials and type of fire.

Special Fire Fighting 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, manganese antimonide may emit toxic fumes.

V.   HEALTH HAZARD INFORMATION

Health Hazards:

To the best of our knowledge the chemical, physical and toxicological properties of manganese antimonide have not been thoroughly investigated and recorded.

Some manganese compounds are experimental tumorigens.  They can cause central and pulmonary system by inhalation of fumes and dust.  Very few poisonings have occurred from ingestion.  Chronic manganese poisoning is a clearly characterized disease which results from inhalation of fumes or dusts of manganese.  The central nervous system is the chief site of damage.  Exposure to dusts and fumes can possibly increase the incidence of upper respiratory infections and pneumonia.

Most antimony compounds are poisons by ingestion, inhalation, and intraperitoneal routes.  Locally antimony compounds irritate the skin and mucous membranes.

Acute Effects:

Inhalation: DANGER-POISON.  May cause irritation of the respiratory tract and mucous membranes and nasal ulceration.  Inhalation of manganese compounds fine dusts and fumes may cause metal fume fever.

Ingestion:  Danger-Poison.  May cause irritation to the lining of the stomach and intestines.

Skin:  May cause irritation.

Eye:  May cause irritation.

Chronic Effects:

Inhalation: Chronic inhalation of manganese compounds dust particles, approximately 5 um in size, inhaled for about 4 hours daily for three months did not produce pneumonitis, but may cause fibrotic changes in the lungs, decrease in hemoglobin and a change in erythrocyte levels.  May cause liver and kidney abnormalities, magnesium, psychic and neurological disorders effecting the central nervous system, to develop (magnesium is not fatal but, can cause permanent  disability).

Ingestion:  No chronic health effects recorded.

Skin:  May cause dermatitis and keratitis.

Eye:  Irritant dusts may cause conjunctivitis damage.

Target Organs:  May affect the central nervous system, kidneys, respiratory system liver.

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

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

LD50/LC50:  No toxicity data recorded.

Route(s) of Entry:  Inhalation?:  Yes   Skin?:  Yes    Eyes?:  Yes    Ingestion?:  Yes

Signs and Symptoms of Exposure:

Inhalation:  May cause red, dry throat, dizziness, headache, nausea, vomiting, diarrhea, cramps, insomnia and anorexia.  Metal fume fever may cause:  chills, fever muscle aches, headache, dry throat, sleepiness, weakness in the legs, muscular twitching nocturnal leg cramps and slowness of speech.  Magnesium may cause:  a slapping gait, cramps, tremors, slurred speech, hallucinations, insomnia and metal confusion.  These symptoms resemble Parkinson's disease.  Other symptoms of magnesium include:  inflammation of the kidneys, cirrhosis of the liver, anorexia, muscular fatigue, sexual impotence, reduction of the white blood cells and anemia.

Ingestion:  May cause redness, itching and burning.

Skin:  May cause redness, itching and burning.

Eye:  May cause redness, itching, inflammation, burning and watering.

EMERGENCY AND FIRST AID PROCEDURES:

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

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

INHALATION:  Remove victim to fresh air; keep warm and quite; give oxygen if breathing is difficult and seek medical attention.

INGESTION:  Give 1-2 glasses of milk or water and induce vomiting.  Seek medical attention.  Keep warm and quite.  Never give anything by mouth or induce vomiting to an unconscious person.

VI.   REACTIVITY DATA

Stability:  Stable

Conditions to Avoid:  None

Hazardous Decomposition Products:  None recorded

Hazardous Polymerization:  Will not occur.

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-Special Protection Information.  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:  Dispose of in accordance with Local, State and Federal Waste Disposal Regulations.

VIII.   SPECIAL PROTECTION INFORMATION

Respiratory Protection (Specify Type):  NIOSH - approved dust, mist, vapor cartridge respirator.

Ventilation:  To maintain concentration at or below the PEL, TLV

Other:  None

Special:  Handle in a controlled, enclosed process

Mechanical (General):  Not recommended

Protective Gloves:  Rubber gloves

Eye Protection:  Safety Glasses

Other Protective Equipment:  Protective gear suitable to prevent contamination.

IX.   SPECIAL PRECAUTIONS

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 the work area.  Wash thoroughly before eating and smoking.  Do not blow dust off clothing or skin with compressed air.

Some of the chemicals listed herein are research or experimental substances which may be toxic, as defined by various government regulations.  In accordance with Environmental Protection Agency regulations and the Toxic Substance 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 believed to be correct, but does not purport to be all inclusive and shall be used only as a guide.  ESPI shall not be held liable for any damage resulting from handling or from contact with the above product.

Issued By:             S. Dierks

Dated:                  February 1995