Trimethylamine |
Synonyms & Trade Names N,N-Dimethylmethanamine; TMA [Note: May be used in an aqueous solution (typically 25%, 30%, or 40% TMA.] |
CAS No. 75-50-3 |
RTECS No. PA0350000 |
DOT ID & Guide 1083 118 (anhydrous)
1297 132 (aqueous solution) |
Formula(CH3)3N |
Conversion 1 ppm = 2.42 mg/m3 |
IDLH N.D.
See: IDLH INDEX |
Exposure Limits NIOSH REL: TWA 10 ppm (24 mg/m3) ST 15 ppm (36 mg/m3)
OSHA PEL†: none |
Measurement Methods
OSHA PV2060
See: NMAM or OSHA Methods |
Physical Description Colorless gas with a fishy, amine odor. [Note: A liquid below 37°F. Shipped as a liquefied compressed gas.] |
MW: 59.1 |
BP: 37°F |
FRZ: -179°F |
Sol(86°F): 48% |
VP(70°F): 1454 mmHg |
IP: 7.82 eV |
|
Fl.P: NA (Gas) 20°F (Liquid) |
UEL: 11.6% |
LEL: 2.0% |
RGasD: 2.09 |
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| Flammable Gas |
Incompatibilities & Reactivities Strong oxidizers (including bromine), ethylene oxide, nitrosating agents (e.g., sodium nitrite), mercury, strong acids [Note: Corrosive to many metals (e.g., zinc, brass, aluminum, copper).] |
Exposure Routes inhalation, ingestion (solution), skin and/or eye contact |
Symptoms irritation eyes, skin, nose, throat, respiratory system; cough, dyspnea (breathing difficulty), delayed pulmonary edema; blurred vision, corneal necrosis; skin burns; liquid: frostbite |
Target Organs Eyes, skin, respiratory system |
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Personal Protection/Sanitation (See protection codes)
Skin: Prevent skin contact (liquid/solution)/Frostbite
Eyes: Prevent eye contact (liquid/solution)/Frostbite
Wash skin: When contaminated (solution)
Remove: When wet (flammable)
Change: No recommendation
Provide: Eyewash (liquid/solution), Quick drench (liquid/solution), Frostbite wash |
First Aid (See procedures)
Eye: Irrigate immediately (liquid/solution)/Frostbite
Skin: Water flush immediately (liquid/solution)/Frostbite
Breathing: Respiratory support
Swallow: Medical attention immediately (solution) |
Respirator Recommendations Not available.
Important additional information about respirator selection |
| See also: INTRODUCTION See ICSC CARD: 0206
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