NAME: Rhodium (as Rh), Soluble Compounds
SYNONYM(s):
Soluble rhodium trichloride; Hydrated rhodium trichloride
IMIS: 2225
CAS: 7440-16-6
NIOSH: RTECS VI9355000
DESCRIPTION:
Red-brown, odorless solid or liquid.
Properties vary depending on the compound.
Exposure Limits
OSHA GENERAL INDUSTRY PEL:
0.001 mg/m3
OSHA CONSTRUCTION INDUSTRY PEL:
0.001 mg/m3 TWA
ACGIH TLV:
0.01 mg/m3 TWA; Appendix A4 (Not Classifiable as a Human Carcinogen)
NIOSH REL: 0.001 mg/m3 TWA
Health Factors
SYMPTOM(s):
In animals: mild eye irritation; CNS damage
HEALTH EFFECTS:
Respiratory sensitization (asthma) (HE9)
ORGAN:
Eyes
Monitoring
PRIMARY SAMPLING/ANALYTICAL METHOD (SLC1):
MEDIA:
Mixed Cellulose Ester Filter (MCEF) 0.8 microns
ANL SOLVENT:
Deionized Water
MAX V:
960 Liters MIN V:
480 Liters MAX F:
2.0 L/min
ANL 1:
Atomic Absorption Spectroscopy; AAS/GF
REF:
2 (OSHA In-house file)
SAE:
0.20
CLASS:
Partially Validated
NOTE:
Submit as a separate sample. If the filter is not overloaded, samples may be collected up to an 8-hour period. Platinum, soluble salts, and Rhodium, metal fume and dust, can be sampled on the same filter.
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