These bibliographies are excellent starting points for further research in chemical ethics and ethics instruction.  The first are maintained by two major figures in this field and are annotated; the third is a list of online and print resources which you may find useful. "A Short List of Useful Resources for Teaching Research Ethics or A Beginner's Bookshelf."  Compiled by Kenneth D. Pimple, PhD.  The Poynter Center for the Study of Ethics and American Institutions, Indiana University.  <http://www.indiana.edu/~poynter/shortlist.pdf>. This is a list of 20 books, booklets, and handbooks chosen by Dr. Pimple as a sample of introductory sources for ethics instruction.  Each title is accompanied by a full citation, abstract, and keywords list.  There is also a larger, searchable bibliography maintained by the Poynter Center at <http://www.indiana.edu/~poynter/index.html>. 

Prof. Linda Sweeting at Towson University teaches a course titled "Professional Ethics for Scientists". Dr. Sweeting is an organic chemist, so many of her resources are specifically aimed at chemistry students. A PDF version of her course outline and references list is at <http://www.chem.vt.edu/ethics/sweeting/sweeting.pdf>. The HTML version is at <http://www.towson.edu/~sweeting/ethics/ethicsyl.htm>. The bibliography is very long and comprehensive, giving the educator an idea of just how much information there is available through both print and electronic sources.

Virginia Polytechnic Institute and State University Department of Chemistry maintains an online bibliography which is indexed both by field and by general topics.  Entries are hyperlinked to online material where available, but are not annotated.  A large range of subjects is covered by this list.  It is at <http://www.chem.vt.edu/ethics/vinny/ethxbibl.html>.