Chemical Process Safety – Answer 2

  • Author:
  • Published Date: 12 January 2017
  • Copyright: Wiley-VCH Verlag GmbH & Co. KGaA
thumbnail image: Chemical Process Safety – Answer 2

Answers to Flammable Hydrogen-Air Mixtures Question


Answer b) is correct.

A spark you can barely feel, e.g., from a static discharge, already has about 50 times as much energy as needed to ignite a mixture of hydrogen and air (21 % oxygen). A typical spark that you experience has over 1000 times the energy required for ignition of the mixture. At higher oxygen concentrations, the mixture is even more easily ignited.

For more information on electrostatic discharges view the previous Chemical Process Safety – Test Your Knowledge

  • The information was taken from CCPS’s Process Safety Beacon 10 2016
  • Register for free for the CCPS's monthly Process Safety Beacon



Article Views: 1532

Sign in Area

Please sign in below

Additional Sign In options

Please note that to comment on an article you must be registered and logged in.
Registration is for free, you may already be registered to receive, e.g., the newsletter. When you register on this website, please ensure you view our terms and conditions. All comments are subject to moderation.

Article Comments - To add a comment please sign in

If you would like to reuse any content, in print or online, from, please contact us first for permission and consult our permission guidance prior to making your request

Follow on Facebook Follow on Twitter Follow on YouTube Follow on LinkedIn Follow on Instagram RSS Sign up for newsletters

Magazine of Chemistry Europe (16 European Chemical Societies) published by Wiley-VCH