Science is Fun
University of Wisconsin: Chemical of the Week: Chlorine and Sodium Hydroxide
Science is Fun website on chlorine and sodium hydroxide. Shows reactions between the two, as well as general background on each.
Iowa State University
Iowa State University: Standardizing Sodium Hydroxide
This laboratory exercise describes the proper method to determine the exact molar concentration of sodium hydroxide.
Other
Ccohs: Basic Information About Sodium Hydroxide
Provides information about purity, symptoms, composition, and immediate health risks involved with sodium hydroxide. In a question and answer format.