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TELLURIUM
(powder)
ICSC: 0986
Peer-Review Status: 13.04.2000 Validated
Aurum paradoxum
Metallum problematum 
CAS #: 13494-80-9 RTECS #: WY2625000
EINECS #: 236-813-4
    Formula: Te
Atomic mass: 127.6

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Combustible.  NO open flames.  Use foam, carbon dioxide, dry powder. 
EXPLOSION Finely dispersed particles form explosive mixtures in air.  Closed system, ventilation, explosion-proof electrical equipment and lighting. Prevent deposition of dust.   
 
EXPOSURE   PREVENT DISPERSION OF DUST! STRICT HYGIENE!   
Inhalation Drowsiness. Metallic taste. Headache. Garlic odour. Nausea.  Use local exhaust or breathing protection.  Fresh air, rest. Artificial respiration may be needed. Refer for medical attention. 
Skin   Protective gloves.  Remove contaminated clothes. Rinse and then wash skin with water and soap. 
Eyes Redness. Pain.  Wear safety goggles or eye protection in combination with breathing protection if powder.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion Abdominal pain. Constipation. Vomiting. Further see Inhalation.  Do not eat, drink, or smoke during work.  Rinse mouth. Induce vomiting (ONLY IN CONSCIOUS PERSONS!). Refer for medical attention . 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Sweep spilled substance into covered sealable containers. Carefully collect remainder. Then store and dispose of according to local regulations. Personal protection: P3 filter respirator for toxic particles.  Unbreakable packaging.
Put breakable packaging into closed unbreakable container. 
EC Classification
 
UN Classification
 
GHS Classification
 

EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-61G64C.  Separated from halogens and interhalogens. 

IMPORTANT DATA
Physical State; Appearance
DARK GREY-TO-BROWN AMORPHOUS POWDER, WITH METAL CHARACTERISTICS OR SILVERY-WHITE, LUSTROUS CRYSTALLINE SOLID. 

Physical dangers
 

Chemical dangers
Upon heating, toxic fumes are formed. Decomposes on heating. This produces toxic fumes. Reacts vigorously with halogens and interhalogens. This generates fire hazard. Reacts with zinc with incandescence. Lithium silicide attacks tellurium with incandescence. 

Occupational exposure limits
 

Routes of exposure
The substance can be absorbed into the body by inhalation of its aerosol. 

Inhalation risk
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed. 

Effects of short-term exposure
The aerosol is irritating to the eyes and respiratory tract. The substance may cause effects on the liver and central nervous system. Exposure could cause garlic-like breath. Medical observation is indicated. 

Effects of long-term or repeated exposure
 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Boiling point: 989.8°C
Melting point: 449.5°C
Density: 6.0-6.25 g/cm³
Solubility in water: none
Auto-ignition temperature: 340°C  
 

NOTES
Do NOT take working clothes home. 

ADDITIONAL INFORMATION
 

IPCS
International
Programme on
Chemical Safety
WHO ILO EC Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004-2012
LEGAL NOTICE Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information.


    See Also:
       Toxicological Abbreviations
       Tellurium (UKPID)