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

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).

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

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.