Safety Statements: Explodes if heated rapidly to 300°C or if heated in a sealed container. Explodes above 70°C on contact with metals (e.g., cobalt; copper; zinc; and most other metals) and metal compounds (e.g., metal acetylides; -nitrides; -oxides; -sulfides). Explosive reaction with potassium dichromate above 100°C. Mixture with 2-hydroxyethylamine + water is an impact-sensitive explosive. Upon decomposition it emits toxic fumes of NOx. See also NITRATES.