Spill from Flash fire High Fire/damage/ Do not handle hot vessel container being personnel injuries heated Reaction unsuccessful High Lost time and Do not leave reaction materials unattended Heating period Open container boils dry High Failed reaction Connect hotplate to timer and is too long temperature feedback loop Vessel breaks High Vessel fails/fire See above Reaction unsuccessful High Lost time and Do not leave reaction materials unattended Heat period is Unreacted starting High Hazardous Connect hotplate to timer and too short material byproducts temperature feedback loop Unstable products High Personnel injuries Conduct a review of all possible reactions and outcomes Reaction unsuccessful High Lost time and Do not leave reaction materials unattended Container Flash fire High Fire/damage/ Check container for signs of breaks personnel injuries prior damage or use new container Residual Vessel breaks High Fire/Damage/ Do not use a closed container; process gas in personnel injuries use container with a pressure equipment relief device when opened Vessel cannot be opened High Lost time and See above materials Unintended reaction High Hazardous Conduct a review of all occurs byproducts possible reactions and outcomes This file is excerpted from “Identifying and Evaluating Hazards in Research Laboratories: Guidelines developed by the Hazard Identification and Evaluation Task Force of the American Chemical Society’s Committee on Chemical Safety”. © Copyright 2015 American Chemical Society
Spill from container being heated Flash fire High Fire/damage/ personnel injuries Do not handle hot vessel Reaction unsuccessful High Lost time and materials Do not leave reaction unattended Heating period is too long Open container boils dry High Failed reaction Connect hotplate to timer and temperature feedback loop Vessel breaks High Vessel fails/fire See above Reaction unsuccessful High Lost time and materials Do not leave reaction unattended Heat period is too short Unreacted starting material High Hazardous byproducts Connect hotplate to timer and temperature feedback loop Unstable products High Personnel injuries Conduct a review of all possible reactions and outcomes Reaction unsuccessful High Lost time and materials Do not leave reaction unattended Container breaks Flash fire High Fire/damage/ personnel injuries Check container for signs of prior damage or use new container Residual process gas in equipment when opened Vessel breaks High Fire/Damage/ personnel injuries Do not use a closed container; use container with a pressure relief device Vessel cannot be opened High Lost time and materials See above Unintended reaction occurs High Hazardous byproducts Conduct a review of all possible reactions and outcomes This file is excerpted from “Identifying and Evaluating Hazards in Research Laboratories: Guidelines developed by the Hazard Identification and Evaluation Task Force of the American Chemical Society’s Committee on Chemical Safety”. © Copyright 2015 American Chemical Society
table-10-3-using-a-hotplate-with-flammable-liquid-example.docx