Lapse in Appropriations
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TRIMETHYLAMINE
| CAS # | 75-50-3 |
|---|---|
| Formula |
C₃H₉N |
| Synonyms |
N,N-dimethylmethanamine; TMA [Note: May be used in an aqueous solution (typically 25%, 30%, or 40% TMA.] |
| Physical description | Colorless gas with a fishy, amine odor. | ||
|---|---|---|---|
| Boiling point | 37.2°F | Molecular weight | 59.11 |
| Freezing point/melting point | -179°F | Vapor pressure | 1454 mmHg at 70°F |
| Flash point | Vapor density | 2.09 | |
| Specific gravity | 0.633 at 68°F | Ionization potential | |
| Lower explosive limit (LEL) | 2.0% | Upper explosive limit (UEL) | 11.6% |
| NFPA health rating | 3 | NFPA fire rating | 4 |
| NFPA reactivity rating | 0 | NFPA special instruction | |
| Vapor hazard ratio (VHR) | |||
| Historical exceedance percentage | |||
| Target organs | |||
| Analyte code (IMIS no.) | T127 |
|---|---|
| Sampling group | |
| Sampler/Sampling media | XAD-7 tube (80/40 mg) coated with phosphoric acid [SKC 226-98] |
| Sampling time* | 100 min |
| Sampling volume (TWA)* | 10 L |
| Sampling flow rate (TWA)* | 0.1 L/min |
| Sampling volume (STEL/Peak/C)* | |
| Sampling flow rate (STEL/Peak/C)* | |
| Analytical method instruments | GC-FID |
| Method reference | OSHA PV2060 (partially validated) |
| 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 | REL-TWA |
10 ppm (24 mg/m³) |
TLV-TWA |
5 ppm [2012] |
PEL-TWA |
5 ppm (12 mg/m³) |
|
| PEL-STEL | REL-STEL |
15 ppm (36 mg/m³) |
TLV-STEL |
15 ppm [2012] |
PEL-STEL |
15 ppm (36 mg/m³) |
|
| PEL-C | REL-C | TLV-C | PEL-C | ||||
| Skin notation |
NA |
Skin notation |
N |
Skin notation |
N |
Skin notation |
N |
|
Notes:
Not established |
Notes: | Notes: | Notes: | ||||
| Health factors: See NIH-NLM PubChem. | IDLH | ||||||
| Carcinogenic classifications: Not listed | Notes: | ||||||
|
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:
0.1/100 ppm/500 ppm |
|||||||
Additional Resources and Literature References
|
NOAA: CAMEO Chemicals - Trimethylamine, anhydrous NIOSH: Pocket Guide to Chemical Hazards - Trimethylamine Literature References
|
Last Updated Date : 07/13/2021