Aurum paradoxum
Metallum problematum
Te
Atomic mass: 127.6
(powder)
ICSC # 0986
CAS # 13494-80-9
RTECS # WY2625000
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Types of Hazard/ Exposure
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Acute Hazards/ Symptoms
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Prevention
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First Aid/
Fire Fighting
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FIRE
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Combustible.
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NO open flames.
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Foam,
carbon dioxide,
dry powder.
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Explosion
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Finely dispersed particles form explosive mixtures in air.
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Prevent deposition of dust; closed system, dust explosion-proof electrical equipment and lighting.
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Exposure
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PREVENT DISPERSION OF DUST!
STRICT HYGIENE!
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•Inhalation
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Drowsiness.
Dry mouth.Metal taste.
Headache.
Garlic odour.
Nausea.
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Local exhaust or breathing protection.
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Fresh air, rest.
Artificial respiration if indicated.
Refer for medical attention.
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•Skin
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Protective gloves.
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Remove contaminated clothes.
Rinse and then wash skin with water and soap.
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•Eyes
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Redness.
Pain.
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Safety goggles
or eye protection in combination with breathing protection if powder.
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First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
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•Ingestion
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Abdominal pain.
Constipation.
Vomiting.
(Further see Inhalation).
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Do not eat, drink, or smoke during work.
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Rinse mouth.
Induce vomiting (ONLY IN CONSCIOUS PERSONS!).
Refer for medical attention.
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Spillage Disposal
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Storage
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Packaging & Labelling
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Sweep spilled substance into sealed containers.
Carefully collect remainder,
then remove to safe place.
(Extra personal protection: P3 filter respirator for toxic particles).
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Separated from
halogens and interhalogens.
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Unbreakable packaging; put breakable packaging into closed unbreakable container.
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Important Data
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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.
Reacts vigorously with halogens or interhalogens
causing fire hazard.
Reacts with zinc with incandescence.
Lithium silicide attacks tellurium with incandescence.
Occupational Exposure Limits:
TLV: 0.1 mg/m3 (ACGIH 1999).
OSHA PEL*: TWA 0.1 mg/m3 *Note: The PEL also applies to other tellurium compounds (as Te) except Tellurium hexafluoride and Bismuth telluride.
NIOSH REL*: TWA 0.1 mg/m3 *Note: The REL also applies to other tellurium compounds (as Te) except Tellurium hexafluoride and Bismuth telluride.
NIOSH IDLH: 25 mg/m3 (as Te) See: 13494809
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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
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Effects of Short-Term Exposure:
The aerosol of this substance
irritates
the eyes and
the respiratory tract.
The substance may cause effects on the
liver
and
central nervous system
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Exposure may result in garlic-like breath.
Medical observation is indicated.
Effects of Long-Term or Repeated Exposure:
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Physical
Properties
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Boiling point: 989.8°C
Melting point: 449.5°C
Density: 6.0-6.25
g/cm3
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Solubility in water: none
Auto-ignition temperature: 340°C
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Environmental
Data
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N O T E S
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Do NOT take working clothes home.
Transport Emergency Card: TEC (R)-61G64c
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ADDITIONAL INFORMATION
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ICSC: 0986
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TELLURIUM
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(C) IPCS, CEC, 1994
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IMPORTANT LEGAL NOTICE:
Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH,
the CEC or the IPCS is responsible for the use which might be made of this
information. This card contains the collective views of the IPCS Peer Review Committee and may
not reflect in all cases all the detailed requirements included in national legislation
on the subject. The user should verify compliance of the cards with the relevant legislation
in the country of use.
The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
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