The Handbooks listed below are often used reference books to find chemical/physical data of common substances and also general concepts in Chemistry and Chemical Engineering fields.
Learn more: Finding Physical Properties of Chemicals: A Practical Guide for Scientists, Engineers, and Librarians Published in Science and Technology Libraries, V. 21, Numbers 3/4 2001 (published fall 2003), p. 27-45
Material Safety Data Sheet (SDS), is documentation accompany chemicals provide both chemists and emergency personnel with the proper procedures for handling or working with a particular substance. You can often find it from the vendors from which you purchased the chemical. And some other free sources also provide SDS for substances. However, please critically evaluate the source of the SDS before you use it in your lab.