RHODIUM, METAL & INSOLUBLE COMPOUNDS†
| CAS # | 7440-16-6 |
|---|---|
| Formula |
Rh (metal) |
| Synonyms |
rhodium metal: elemental rhodium. Synonyms of other insoluble rhodium compounds vary depending upon the specific compound. |
| Physical description | White, hard, ductile, malleable solid with a bluish-gray luster. Metal fume is a reddish-gray to black dust-like powder. | ||
|---|---|---|---|
| Boiling point | 6741°F | Molecular weight | 102.9 |
| Freezing point/melting point | 3571°F | Vapor pressure | 0 mmHg (approx) |
| Flash point | Vapor density | ||
| Specific gravity | 12.41 (metal) | Ionization potential | |
| Lower explosive limit (LEL) | Upper explosive limit (UEL) | ||
| NFPA health rating | NFPA fire rating | ||
| NFPA reactivity rating | NFPA special instruction | ||
| Vapor hazard ratio (VHR) | |||
| Historical exceedance percentage | |||
| Target organs | |||
| Analyte code (IMIS no.) | |||
|---|---|---|---|
| Sampling group | |||
| Sampler/Sampling media | |||
| Sampling time* | |||
| Sampling volume (TWA)* | |||
| Sampling flow rate (TWA)* | |||
| Sampling volume (STEL/Peak/C)* | |||
| Sampling flow rate (STEL/Peak/C)* | |||
| Analytical method instruments | |||
| Method reference | |||
| Notes | |||
| Special requirements |
* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.
| Wipe Sampler/Sampling media | |
|---|---|
| Bulk Method |
| Device | |||||
|---|---|---|---|---|---|
| Model/Type | |||||
|
Sampling information (see manufacturer instructions) |
|
OSHA PEL
8-hour TWA (ST) STEL (C) Ceiling Peak |
NIOSH REL
Up to 10-hour TWA (ST) STEL (C) Ceiling |
ACGIH TLV©
8-hour TWA (ST) STEL (C) Ceiling |
|||||
|---|---|---|---|---|---|---|---|
| PEL-TWA |
0.1 mg/m³ |
REL-TWA |
0.1 mg/m³ |
TLV-TWA |
1 mg/m³ [1981] |
PEL-TWA |
0.1 mg/m³ (insoluble compounds, as Rh) |
| PEL-STEL | REL-STEL | TLV-STEL | PEL-STEL | ||||
| PEL-C | REL-C | TLV-C | PEL-C | ||||
| Skin notation |
N |
Skin notation |
N |
Skin notation |
N |
Skin notation |
N |
| Notes: | Notes: | Notes: | Notes: | ||||
| Health factors: See NIH-NLM PubChem. | IDLH |
100 mg/m³ |
|||||
| Carcinogenic classifications: TLV-A4 | Notes: | ||||||
| AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3: | |||||||
Additional Resources and Literature References
|
NOAA: CAMEO Chemicals - Rhodium (metal fume) NIOSH: Pocket Guide to Chemical Hazards - Rhodium (metal fume and insoluble compounds, as Rh) Literature References
|
Last Updated Date : 01/11/2021