Immediately Dangerous to Life or Health Concentrations (IDLH)
CAS number: 75–04–7
NIOSH REL: 10 ppm (18 mg/m3) TWA
Current OSHA PEL: 10 ppm (18 mg/m3) TWA
1989 OSHA PEL: Same as current PEL
1993-1994 ACGIH TLV: 5 ppm (9.2 mg/m3) TWA, 15 ppm (27.6 mg/m3) STEL
Description of Substance: Colorless gas or water-white liquid (below 62 F) with an ammonia-like odor.
LEL:. . 3.5% (10% LEL, 3,500 ppm)
Original (SCP) IDLH: 4,000 ppm
Basis for original (SCP) IDLH: The chosen IDLH is based on the UCC  report that a 4-hour exposure to 4,000 ppm killed 1 of 6 rats.
Short-term exposure guidelines: None developed
ACUTE TOXICITY DATA
Lethal concentration data:
|Species||Reference||LC50(ppm)||LCLo(ppm)||Time||Adjusted 0.5-hrLC (CF)||Derivedvalue|
|Hine et al. 1960Kulagina 1975
|6,000 ppm (2.0)?
8,000 ppm (2.0)
Lethal dose data:
|Species||Reference||Route||LD50(mg/kg)||LDLo(mg/kg)||Adjusted LD||Derived value|
|Rat||UCC 1958||oral||400||—–||1,497 ppm||150 ppm|
Human data: None relevant for use in determining the revised IDLH.
|Revised IDLH: 600 ppmBasis for revised IDLH: The revised IDLH for ethylamine is 600 ppm based on acute inhalation toxicity data in animals [Hine et al. 1960; UCC 1958].|
1. Hine CH, Kodama JK, Guzman RJ, Loquvam GS . The toxicity of allylamines. Arch Environ Health 1:343-352.
2. Kulagina NK . Dependence of biological activity of aliphatic hydrocarbons on their chemical structure and physical-chemical properties. Toksikol Nov Prom Khim Vesh 14:80-90 (in Russian).
3. Smyth HF Jr, Carpenter CP, Weil CS, Pozzani UC . Range-finding toxicity data: list V. AMA Arch Ind Hyg Occup Med 10:61-68.
4. UCC . Toxicology studies: ethyl amine. New York, NY: Union Carbide Corporation.
- Page last reviewed: December 4, 2014
- Page last updated: December 4, 2014
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