CRC Handbook of Chemistry and Physics: 97th ed.
A Dictionary of Chemistry by 
The Merck Index: 15th ed
Encyclopedia of Chemistry by 
Prudent Practices in the Laboratory by Fordham University uses the Library of Congress Classification System.
For more detailed information, check out the Library of Congress Classification Outline.
Below are call number ranges for topics in chemistry:
QD1-65 General chemistry, 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
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