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Trimethylamine |
CAS 75-50-3 | ||
(CH3)3N |
RTECS PA0350000 | ||
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Synonyms & Trade Names N,N-Dimethylmethanamine; TMA [Note: May be used in an aqueous solution (typically 25%, 30%, or 40% TMA.] |
DOT ID & Guide 1083 118 (anhydrous) 1297 132 (aqueous solution) |
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Exposure
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NIOSH REL: TWA 10 ppm (24 mg/m3) ST 15 ppm (36 mg/m3) | ||
| OSHA PEL†: none | |||
| IDLH N.D. See: IDLH INDEX | Conversion 1 ppm = 2.42 mg/m3 | ||
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Physical Description Colorless gas with a fishy, amine odor. [Note: A liquid below 37°F. Shipped as a liquefied compressed gas.] |
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MW: 59.1 |
BP: 37°F |
FRZ: -179°F |
Sol(86°F): 48% |
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VP(70°F): 1454 mmHg |
IP: 7.82 eV |
RGasD: 2.09 |
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Fl.P: NA (Gas) 20°F (Liquid) |
UEL: 11.6% |
LEL: 2.0% |
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| Flammable Gas | |||
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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).] |
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Measurement Methods OSHA PV2060 See: NMAM or OSHA Methods |
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Personal Protection & Sanitation (See protection) 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) |
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Important additional information about respirator selection Respirator Recommendations Not available. |
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| 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 | |
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Target Organs
Eyes, skin, respiratory system |
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| See also: INTRODUCTION See ICSC CARD: 0206 |