Ammonia

A compound of nitrogen and hydrogen with the formula NH3; colorless gas with pungent odor; an important fertilizer and food precursor
Reference: CCPS, AIChE Industry Technology Alliance, Safety Alert 1. Reactive Material Hazards – What you need to know (2001) 2. A Checklist for inherently Safer Chemical Reaction Process Design and Operation (www.aiche.org/ccps/safetyalerts)
Science/Larger Scale Chemical