International Chemical Safety Cards

TELLURIUM ICSC: 0986
TELLURIUM
Aurum paradoxum
Metallum problematum
(powder)
Te
Molecular mass: 127.60
CAS # 13494-80-9
RTECS # WY2625000
ICSC # 0986
UN # 2811
TYPES OF
HAZARD/
EXPOSURE
ACUTE HAZARDS/
SYMPTOMS
PREVENTION FIRST AID/
FIRE FIGHTING
FIRE Flammable. Moderate fire hazards in form of dust when exposed to heat or flame.
NO open flames, NO sparks, and NO smoking. NO contact with oxidizing agents.
Foam, carbon dioxide, dry powder.
EXPLOSION Finely dispersed particles form explosive mixtures in air.
Prevent deposition of dust; closed system, dust explosion-proof electrical equipment and lighting.

EXPOSURE
PREVENT DISPERSION OF DUST! STRICT HYGIENE! AVOID EXPOSURE OF (PREGNANT) WOMEN!
IN ALL CASES CONSULT A DOCTOR!
  • INHALATION
  • Drowsiness. Headache. Garlic odour. Nausea.
    Local exhaust or breathing protection.
    Fresh air, rest. Artificial respiration if indicated. Refer for medical attention.
  • SKIN
  • MAY BE ABSORBED!
    Protective gloves. Protective clothing.
    Remove contaminated clothes. Rinse and then wash skin with water and soap.
  • EYES
  • Redness.
    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 take to a doctor.
  • INGESTION
  • Abdominal pain. Constipation. Nausea. Vomiting. Garlic odour of the breath (further see Inhalation).
    Do not eat, drink, or smoke during work.
    Give a slurry of activated charcoal in water to drink. Refer for medical attention.
    SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING
    Sweep spilled substance into sealed containers. Carefully collect remainder, then remove to safe place (extra personal protection: P3 filter respirator for toxic particles).
    Separated from strong oxidants, strong bases, strong acids, halogens and interhalogens.
    Unbreakable packaging; put breakable packaging into closed unbreakable container.
    UN Hazard Class: 6.1
    SEE IMPORTANT INFORMATION ON BACK
    ICSC: 0986 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities © IPCS CEC 1993

    International Chemical Safety Cards

    TELLURIUM ICSC: 0986

    I
    M
    P
    O
    R
    T
    A
    N
    T

    D
    A
    T
    A

    PHYSICAL STATE; APPEARANCE:
    DARK GRAY TO BROWN AMORPHOUS POWDER, WITH METAL CHARACTERISTICS.

    PHYSICAL DANGERS:


    CHEMICAL DANGERS:
    Upon heating, toxic fumes are formed. Reacts vigorously with halogens or interhalogens causing flames hazard. Reacts with zinc with incandescence. Lithium silicide attacks tellurium with incandescence.

    OCCUPATIONAL EXPOSURE LIMITS (OELs):
    TLV: ppm; 0.1 mg/m3 (ACGIH 1991-1992).
    PDK: 0.01 mg/m3 (USSR 1967).


    ROUTES OF EXPOSURE:
    The substance can be absorbed into the body by inhalation of its aerosol, through the skin and by ingestion.

    INHALATION RISK:
    Evaporation at 20C is negligible; a harmful concentration of airborne particles can, however, be reached quickly on dispersion.

    EFFECTS OF SHORT-TERM EXPOSURE:
    The aerosol of this substance irritates the respiratory tract. The substance may cause effects on the central nervous system (see Notes). Medical observation is indicated.

    EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
    Animal tests show that this substance possibly causes malformations in human babies (see Notes).
    PHYSICAL
    PROPERTIES
    Boiling point: 989.8C
    Melting point: 449.5C
    Relative density (water = 1): 6.11-6.27
    Solubility in water: none
    Vapour pressure, kPa at 520C: 0.1333
    Auto-ignition temperature: 340C
    ENVIRONMENTAL
    DATA

    NOTES
    Data are insufficiently available on the effect of this substance on human health, therefore utmost care must be taken. Inhalation of fumes may result in additional toxic effects.
    Transport Emergency Card: TEC (R)-61G12c
    ADDITIONAL INFORMATION


    ICSC: 0986 TELLURIUM
    © IPCS, CEC, 1993
    IMPORTANT LEGAL NOTICE: Neither the CEC or the IPCS nor any person acting on behalf of 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.