Chlorine

A toxic chemical compound with atomic number 17; a widely used disinfection material
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