RT null
T1 Phosgene Health and Safety Guide - Health and Safety Guide 106
A1 United Nations Environment Programme, 
A1 International Labour Organisation, 
A1 World Health Organization, 
K1 toxic substance
K1 chemical
K1 guideline
K1 environmentally hazardous substance
K1 health
SN 924 151106 0
YR 1998
FD 1998
LK https://wedocs.unep.org/handle/20.500.11822/29810
UL https://wedocs.unep.org/handle/20.500.11822/29810
NO This is a companion volume to Environmental Health Criteria 193: Phosgene. Phosgene is a colourless gas at room temperature and standard pressure. It has a suffocating odour similar to mouldy hay. Although the odour of phosgene can be perceived at 1.6 mg/m3 (0.4 ppm), after adaption recognition will be at levels >6 mg/m3 (1.5 ppm). It is slightly soluble in water and freely soluble in most liquid hydrocarbons, benzene, toluene and glacial acetic acid.
DS UN Environment Document Repository
RD Sep 17, 2026