International Chemical Safety Cards

RHODIUM ICSC: 1247

RHODIUM
(powder)
Rh
Atomic mass: 102.9
CAS # 7440-16-6
RTECS # VI9069000
ICSC # 1247
UN # 3089
TYPES OF
HAZARD/
EXPOSURE 		ACUTE HAZARDS/
SYMPTOMS 		PREVENTION FIRST AID/
FIRE FIGHTING
FIRE Flammable.
NO open flames, NO sparks, and NO smoking.

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!

  • INHALATION

    		• Avoid inhalation of fine dust and mist. Local exhaust or breathing protection.
    		Fresh air, rest. Refer for medical attention.
  • SKIN

    		• Protective gloves.
    		Rinse and then wash skin with water and soap. Refer for medical attention.
  • EYES

    		• Safety goggles.
    		First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
  • INGESTION

    		• Do not eat, drink, or smoke during work. Wash hands before eating.

    SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING
    Sweep spilled substance into covered containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place (extra personal protection: P3 filter respirator for toxic particles).
    		Fireproof. Separated from oxygen difluoride.

    UN Hazard Class: 4.1
    SEE IMPORTANT INFORMATION ON BACK
    ICSC: 1247 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities © IPCS CEC 1993 No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and IDLH values.

    International Chemical Safety Cards

    RHODIUM ICSC: 1247

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    PHYSICAL STATE; APPEARANCE:
     GREY TO BLACK POWDER.

    PHYSICAL DANGERS:
     Dust explosion possible if in powder or granular form, mixed with air.

    CHEMICAL DANGERS:
     Reacts with oxygen difluoride causing fire hazard.

    OCCUPATIONAL EXPOSURE LIMITS (OELs):
     TLV: ppm; 1 mg/m3 (as TWA) (ACGIH 1993-1994).
    OSHA PEL: TWA 0.1 mg/m3
    NIOSH REL: TWA 0.1 mg/m3
    NIOSH IDLH: 100 mg/m3 (as Rh)


    		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:


    PHYSICAL
    PROPERTIES
    Boiling point: 3727°C
    Melting point: 1966°C
    		 Relative density (water = 1): 12.4
    Solubility in water, g/100 ml at 20°C: none
    ENVIRONMENTAL
    DATA
    N O T E S
    Health effects of exposure to the substance have not been investigated. Insufficient data are available on the effect of this substance on human health, therefore utmost care must be taken.
    Transport Emergency Card: TEC (R)-41G15
    ADDITIONAL INFORMATION


    ICSC: 1247 RHODIUM
    © IPCS, CEC, 1993
    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 IDLH values.