You can browse Ensor LRC's print collection in the following Library of Congress Classification number ranges.
QD1-999 Chemistry
QD1-65 General Including alchemy
QD71-142 Analytical chemistry
QD146-197 Inorganic chemistry
QD241-441 Organic chemistry
QD415-436 Biochemistry
QD450-801 Physical and theoretical chemistry
QD625-655 Radiation chemistry
QD701-731 Photochemistry
QD901-999 Crystallography
Use any of the resources listed below to search for books on your topic.