American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 10 ppm, 25 mg/m3 TWA; Skin; Appendix A4 - Not Classifiable as a Human Carcinogen
National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 10 ppm, 25 mg/m3 TWA
Explosive vapor/air mixtures of ethylenediamine may be formed at temperatures above 34°C.
Ethylenediamine is permitted by the FDA as a secondary direct food additive for controlling microorganisms for cane-sugar mills up to 1 ppm and for beet-sugar mills up to 2 ppm in combination with specific carbamates (21 CFR 173.320).
The major urinary metabolite of ethylenediamine in rats, mice and humans is N-acetylethylenediamine. In mice, the terminal half-life in plasma was reported to be 5 hours after intravenous administration and 6.8 hours after oral administration.
Leung, H.-W.: Pharmacokinetics and metabolism of ethylenediamine in the Swiss Webster mouse following oral or intravenous dosing. Toxicol. Lett.117(1-2): 107-114, 2000.
Pohanish, R.P. (editor): Ethylenediamine. In, Sittig’s Handbook of Toxic and Hazardous Chemicals and Carcinogens, Fourth Ed., Vol. 1. Norwich, NY: Noyes Publications, William Andrew Publishing, 2002, pp. 1079-1081.
Sasseville, D. and al-Khenaisan, S.: Occupational contact dermatitis from ethylenediamine in a wire-drawing lubricant. Contact Dermatitis36(4): 228-229, 1997.