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NIOSH

RHODIUM

ICSC: 1247

Rh
Atomic mass: 102.9
(powder)
ICSC # 1247 		CAS # 7440-16-6
RTECS # VI9069000
October 27, 2004 Validated

TYPES OF HAZARD/ EXPOSURE

ACUTE HAZARDS/ SYMPTOMS

PREVENTION

FIRST AID/
FIRE FIGHTING

FIRE See Chemical dangers.

In case of fire in the surroundings: use appropriate extinguishing media.
EXPLOSION


EXPOSURE
PREVENT DISPERSION OF DUST!

•INHALATION Cough.
Local exhaust or breathing protection.
Fresh air, rest.
•SKIN
Protective gloves.
Rinse and then wash skin with water and soap.
•EYES Redness.
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.
Rinse mouth.

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. Personal protection: P2 filter respirator for harmful particles.
See Chemical Dangers.

ICSC: 1247 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

RHODIUM

ICSC: 1247

I

M

P

O

R

T

A

N

T


D

A

T

A

PHYSICAL STATE; APPEARANCE:
GREY TO BLACK POWDER.

PHYSICAL DANGERS:


CHEMICAL DANGERS:
Reacts violently with halogens causing fire hazard. Rhodium is a catalytic substance and may cause reaction in contact with many organic and inorganic substances , causing fire and explosion hazard.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: 1.0 mg/m3 as TWA; A4 (not classifiable as a human carcinogen); (ACGIH 2004).
MAK:
Carcinogen category: 3B;
(DFG 2004).
OSHA PEL: TWA 0.1 mg/m3
NIOSH REL: TWA 0.1 mg/m3
NIOSH IDLH: 100 mg/m3 (as Rh) See: rhodium


ROUTES OF EXPOSURE:


INHALATION RISK:
A harmful concentration of airborne particles can be reached quickly when dispersed.

EFFECTS OF SHORT-TERM EXPOSURE:
May cause mechanical irritation.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:

PHYSICAL
PROPERTIES

Boiling point: 3695°C
Melting point: 1965°C
Density: 12.4
g/cm3
Solubility in water: none

ENVIRONMENTAL
DATA


N O T E S

Health effects of exposure to the substance have not been investigated adequately. Recommendations in this card do not apply to water-soluble rhodium compounds.

ADDITIONAL INFORMATION



ICSC: 1247 RHODIUM
(C) IPCS, CEC, 1994
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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