With respect to documents available from this server, neither the author, nor Normal Community High School (NCHS), nor the webmasters who maintain this site, make any warranty, expressed or implied, or assume any legal liability or responsibility for the information provided in these pages. It cannot be assumed that all necessary warnings and procedures have been included. Use of suggested chemicals or procedures may no longer be acceptable based upon current scientific literature regarding the handling of hazardous materials. Some pages may contain errors and inaccuracies due to transcription or conversion from their original format; it is recommended that you confirm the information by comparing it with the original format.

The person(s) using this information must follow all the customary and prudent procedures of the appropriate discipline for the safe storage, preparation, handling, and disposal of any chemicals or other potentially dangerous materials mentioned in these pages. Never perform any lab or demonstration with a class without practicing it first. Practice "safe science."