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| N-Ethylmorpholine | CAS 100-74-3 | ||
| C4H8ONCH2CH3 | RTECS QE4025000 | ||
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Synonyms & Trade Names 4-Ethylmorpholine |
DOT ID & Guide |
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Exposure Limits |
NIOSH REL: TWA 5 ppm (23 mg/m3) [skin] | ||
| OSHA PEL�: TWA 20 ppm (94 mg/m3) [skin] | |||
| IDLH 100 ppm | Conversion 1 ppm = 4.71 mg/m3 | ||
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Physical Description Colorless liquid with an ammonia-like odor. |
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MW: 115.2 |
BP: 281°F |
FRZ: -81°F |
Sol: Miscible |
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VP: 6 mmHg |
IP: ? |
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Sp.Gr: 0.90 |
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Fl.P(oc): 90°F |
UEL: ? |
LEL: ? |
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| Class IC Flammable Liquid: Fl.P. at or above 73�F and below 100�F. | |||
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Incompatibilities & Reactivities Strong acids, strong oxidizers |
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Measurement Methods NIOSH S146 (II-3) |
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Personal Protection & Sanitation Skin: Prevent skin contact Eyes: Prevent eye contact Wash skin: When contaminated Remove: When wet (flammable) Change: No recommendation Provide: Eyewash (>15%), Quick drench |
First Aid (See procedures) Eye: Irrigate immediately Skin: Water flush promptly Breathing: Respiratory support Swallow: Medical attention immediately |
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Respirator Recommendations
NIOSH Up to 50 ppm: (APF = 10) Any chemical cartridge respirator with organic vapor cartridge(s)*/(APF = 10) Any supplied-air respirator* Up to 100 ppm: (APF = 25) Any supplied-air respirator operated in a continuous-flow mode*/(APF = 25) Any powered, air-purifying respirator with organic vapor cartridge(s)*/(APF = 50) Any chemical cartridge respirator with a full facepiece and organic vapor cartridge(s)/(APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister/(APF = 50) Any self-contained breathing apparatus with a full facepiece/(APF = 50) Any supplied-air respirator with a full facepiece Emergency or planned entry into unknown concentrations or IDLH conditions: (APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode/(APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus Escape: (APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister/Any appropriate escape-type, self-contained breathing apparatus |
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| Exposure Routes inhalation, skin absorption, ingestion, skin and/or eye contact | |
| Symptoms Irritation eyes, nose, throat; visual disturbance: corneal edema, blue-gray vision, colored haloes | |
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Target Organs
Eyes, respiratory system |
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| See also: INTRODUCTION |