davidflatter6 :
Liquid ammonia can burn or cause a fire under specific conditions, though it is not classified as a standard flammable liquid.
Key Facts About Ammonia and Fire Risks
• Flammability Limits: Ammonia gas (which rapidly evaporates from liquid ammonia) is flammable in air only when its concentration reaches 15% to 28% by volume (150,000 to 280,000 ppm).
• Hard to Ignite: It requires a strong ignition source (such as an open flame, electrical spark, or a temperature of about 1,204°F / 651°C) to catch fire.
• Enclosed Spaces: Because it is difficult to reach and sustain those specific concentration percentages in open air, fires are rare outdoors, but confined, poorly ventilated spaces can allow flammable concentrations to build up.
• Reactivity with Other Chemicals: Mixing liquid or gaseous ammonia with strong oxidizers, halogens (like chlorine or bleach), or certain acids can trigger violent reactions and explosions.
• Container Rupture: If a sealed container or cylinder of liquid ammonia is exposed to intense heat or fire, the internal pressure will rise sharply, causing the tank to rupture or explode violently.
2026-10-25 22:55:50