MATERIAL SAFETY DATA SHEET
I PRODUCT IDENTIFICATION
Trade Name: Manganese Telluride Synonyms: Manganese monotelluride
Formula: MnTe Chemical Family: Metal Telluride
Molecular Weight: 182.54 CAS #: 12032-88-1
II HAZARDOUS INGREDIENTS
Components: OSHA/PEL: ACGIH/TLV: Other: %: Sec.302: Sec.304: Sec.313:
5 mg/m3 5 mg/m3
Manganese Telluride Ceiling 0-100 No No Yes
.1 mg/m3 .1 mg/m3
Tellurium Compounds N/E 0-100 No Yes, 1 lb Yes
III PHYSICAL DATA
Boiling Point: N/E or N/A Melting Point: N/E or N/A
Solubility in H2O: N/E Specific Gravity (H2O=1): N/E
Vapor Density: N/A Vapor Pressure: N/E
Appearance and Odor: Pieces, no odor
IV FIRE AND EXPLOSION HAZARDS DATA
Flash Point: N/E or N/A Flammability: Non-flammable
Flammable Limits: Upper: N/A Lower: N/A
Extinguishing Media: 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 telluride may emit toxic fumes of tellurium. May
react violently with lithium when heated to 230 oC.
V HEALTH HAZARD INFORMATION
Route(s) of Entry: Inhalation, ingestion.
Health Hazards (Acute and Chronic):
To the best of our knowledge the chemical, physical and toxicological properties of manganese telluride have not been
thoroughly investigated and recorded.
Some manganese compounds are experimental tumorigens. They can cause central nervous and pulmonary system damage
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 (Sax, Dangerous Properties of Industrial Materials, eighth ed.).
Elemental tellurium has relatively low toxicity. It is converted in the body to dimethyl telluride which imparts a garlic-like
odor to the breath and sweat. Heavy exposures may, in addition, result in headache, drowsiness, metallic taste, loss of appetite,
nausea, tremors, convulsions, and respiratory arrest (Sax, Dangerous Properties of Industrial Materials, eighth ed.).
Inhalation: Acute: DANGER-POISON. May cause irritation of the respiratory tract and mucous membranes, dry mouth, garlic
odor to breath, sweat and urine, nausea and vomiting. Inhalation of manganese compounds fine dusts and fumes may cause metal
Chronic: Chronic inhalation of manganese compounds dust particles, approximately 3 um in size, for a period of a few months may
cause pulmonary pneumonitis. However, 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, a decrease in hemoglobin and a change in erythrocyte
levels. May cause anorexia, nausea, depression to the central nervous system and somnolence, magnesium psychic and neurological
disorders effecting the central nervous system, to develop (manganese is not fatal, but can cause permanent disability).
Ingestion: Acute: Danger-Poison. May cause a dry mouth, suppression of sweat, garlic odor to breath and urine.
Chronic: May cause anorexia, nausea, depression to the central nervous system and somnolence.
Skin: Acute: May cause irritation.
Chronic: May cause dermatitis.
Eye: Acute: May cause irritation.
Chronic: Irritant dusts may cause conjunctivitis damage.
Target Organs: May affect the central nervous system, kidneys, respiratory system, and liver.
Carcinogenicity: NTP? No IARC Monographs? No OSHA Regulated? No
LD50/LC50: No toxicity data recorded.
Signs And Symptoms of Exposure:
Inhalation: May cause red, dry throat and mouth, garlic-like odor to breath, sweat and urine, loss of appetite, sleepiness and nausea.
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, hallucina-
tions, insomnia and metal confusion. These symptoms resemble Parkinson鈥檚 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
Ingestion: May cause a dry mouth, garlic-like odor to breath and urine, loss of appetite, sleepiness and nausea.
Skin: May cause redness, and itching.
Eye: May cause redness, itching, and watering.
Medical Conditions Generally Aggravated By Exposure: Pre-existing respiratory disorders.
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
SKIN: Remove contaminated clothing, brush material off skin. Wash affected area with mild soap and water. Seek medical atten-
tion if symptoms persists.
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
Conditions to Avoid: None
Hazardous Decomposition Products: Fumes of Tellurium
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: Handle in a controlled, enclosed process. Use local exhaust to maintain concentration at or below the PEL, TLV.
Mechanical exhaust is recommended.
Protective Gloves: Rubber gloves Eye Protection: Safety Glasses.
Other Protective Equipment: Protective gear 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 the work area. Wash thor-
oughly before eating and smoking. Do not blow dust off clothing or skin with compressed air.
IX SPECIAL PRECAUTIONS
Precautions to Be Taken in Handling and Storage: Store in a cool, dry area, in a tightly sealed container. Wash thoroughly after
handling. Avoid breathing dust.
HMIS Ratings (0-4): Health: 3 Flammability: 0 Reactivity: 0
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 鈥渢echnically qualified individual鈥?, 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 1998