| Agent Name |
N-Ethylmorpholine |
|---|
| CAS Number |
100-74-3 |
|---|
| Formula |
C6-H13-N-O |
|---|
| Major Category |
Nitrogen Compounds |
|---|
| Synonyms |
4-Ethylmorpholine; Ethylmorpholine; Morpholine, 4-ethyl-; N-Ethylmorfolin [Czech]; N-Ethylmorpholine; NEM; [ChemIDplus] UN1993 |
|---|
| Category |
Amines, Heterocyclic |
|---|
| Description |
Colorless liquid with an ammonia-like odor; [NIOSH] |
|---|
| Sources/Uses |
Used as a catalyst in the production of polyurethane foam; [ACGIH] |
|---|
| Comments |
Has potential to cause corneal damage; [ACGIH] |
|---|
| Exposure Assessment |
|---|
| Skin Designation (ACGIH) |
Yes |
|---|
| TLV (ACGIH) |
5 ppm |
|---|
| PEL (OSHA) |
20 ppm |
|---|
| IDLH (NIOSH) |
100 ppm |
|---|
| Excerpts from Documentation for IDLHs |
Exposures to 100 ppm for 2.5 minutes have resulted in olfactory fatigue and irritation of the eyes, nose, and throat; irritation was slight after 25 minutes at 50 ppm and absent at 25 ppm [Smyth 1964]. Corneal edema has been noted in workers exposed to concentrations greater than 40 ppm for several hours [Dernehl 1966]. In another study, workers exposed to concentrations as high as 11 ppm but averaging about 3 to 4 ppm complained of drowsiness, optical halos, and foggy vision [Woewicki 1968]. |
|---|
| Vapor Pressure |
5.03 mm Hg |
|---|
| Odor Threshold Low |
0.08 ppm |
|---|
| Odor Threshold High |
0.25 ppm |
|---|
| Lethal Concentration |
LCLo (rats) = 2,000 ppm/4H |
|---|
| Explanatory Notes |
Detection odor threshold from AIHA (mean = 0.085 ppm); Flash point = 32 deg C; |
|---|
| Flammability (NFPA) |
3: may ignite at ambient temperature |
|---|
| Links to Other NLM Databases |
|---|
| Health Studies |
Human Health Effects from Hazardous Substances Data Bank: N-ETHYLMORPHOLINE
|
|---|
