RT null T1 Methanol Health and Safety Guide - Health and Safety Guide 105 A1 World Health Organization, K1 health K1 health hazard K1 methanol K1 toxic substance K1 chemical safety SN 92 4 151105 2 YR 1997 FD 1997 LK https://wedocs.unep.org/handle/20.500.11822/29641 UL https://wedocs.unep.org/handle/20.500.11822/29641 NO Methanol is a colourless, polar, volatile, flammable liquid with a mild alcoholic odour when pure. It decomposes on heating producing carbon monoxide and formaldehyde. Methanol reacts violently with oxidizing materials such as perchlorates, chromium trioxide, bromine, sodium hypochiorite, chlorine and hydrogen peroxide resulting in fire and explosive mixtures. DS UN Environment Document Repository RD Nov 5, 2026