NAME: Rhodium (as Rh), Metal Fume and Insoluble Compounds
IMIS: 2223
CAS: 7440-16-6
NIOSH: RTECS VI9355000
DESCRIPTION:
Gray fume or dust
MW:
103
BP:
4532 F
VP:
approx. 0 mm
MP:
3570 C
Exposure Limits
OSHA GENERAL INDUSTRY PEL:
0.1 mg/m3
OSHA CONSTRUCTION INDUSTRY PEL:
0.1 mg/m3 TWA
ACGIH TLV:
1 mg/m3 TWA; Appendix A4 (Not Classifiable as a Human Carcinogen)
NIOSH REL: 0.1 mg/m3 TWA
Health Factors
HEALTH EFFECTS:
Low risk health effects (HE19)
Monitoring
PRIMARY SAMPLING/ANALYTICAL METHOD (SLC1):
MEDIA:
Mixed Cellulose Ester Filter (MCEF) 0.8 microns
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:
0.202
CLASS:
Partially Validated
NOTE:
Sodium Bisulfite Fusion. Submit as a separate sample. If the filter is not overloaded, samples may be collected up to an 8-hour period. Analytical method does not distinguish between dust and fume. Rhodium and Platinum soluble salts may also be collected on same filter.
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