Ethyleneimine
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CAS
151-56-4
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C2H5N
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RTECS
KX5075000
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Synonyms & Trade Names
Aminoethylene, Azirane, Aziridine, Dimethyleneimine, Dimethylenimine, Ethylenimine, Ethylimine
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DOT ID & Guide
1185 131P (inhibited)
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Exposure
Limits
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NIOSH REL: Ca See Appendix A
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OSHA PEL: [1910.1012] See Appendix B
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IDLH
Ca [100 ppm]
See: 151564
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Conversion
1 ppm = 1.76 mg/m3
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Physical Description
Colorless liquid with an ammonia-like odor. [Note: Usually contains inhibitors to prevent polymerization.]
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MW: 43.1
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BP: 133°F
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FRZ: -97°F
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Sol: Miscible
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VP: 160 mmHg
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IP: 9.20 eV
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Sp.Gr: 0.83
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Fl.P: 12°F
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UEL: 54.8%
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LEL: 3.3%
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Class IB Flammable Liquid: Fl.P. below 73°F and BP at or above 100°F.
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Incompatibilities & Reactivities
Polymerizes explosively in presence of acids [Note: Explosive silver derivatives may be formed with silver alloys (e.g., silver solder).]
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Measurement Methods
NIOSH 3514
See: NMAM or OSHA Methods
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Personal Protection & Sanitation (See protection codes)
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated/Daily
Remove: When wet or contaminated
Change: Daily
Provide: Eyewash, Quick drench
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First Aid (See procedures)
Eye: Irrigate immediately
Skin: Soap wash immediately
Breathing: Respiratory support
Swallow: Medical attention immediately
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Respirator Recommendations (See Appendix E)
NIOSH
At concentrations above the NIOSH REL, or where there is no REL, at any detectable concentration:
(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
Important additional information about respirator selection
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Exposure Routes
inhalation, skin absorption, ingestion, skin and/or eye contact
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Symptoms
Irritation eyes, skin, nose, throat; nausea, vomiting; headache, dizziness; pulmonary edema; liver, kidney damage; eye burns; skin sensitization; [potential occupational carcinogen]
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Target Organs
Eyes, skin, respiratory system, liver, kidneys
Cancer Site
[in animals: lung & liver tumors]
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See also: INTRODUCTION
See ICSC CARD: 0100 See MEDICAL TESTS: 0102
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