Important Notice: Limited Web Access Dec 16 to 18, 2016

AIChE will undertake a routine upgrade of our digital infrastructure over the weekend of December 16-18, 2016. During this period access to certain areas of the website will be limited. Learn more about how access will be affected.


Raising the acidity (lowering the pH) of a fluid by adding an acid.

Go to Process Safety Glossary

Download the app: iTunes | Google