Module 2

Lesson 1.1  Introducing the Halogenated Hydrocarbons (Alkyl Halides)



Key Concepts


Halogenated hydrocarbons, also known as organic halides and alkyl halides, are organic compounds in which one or more hydrogen atoms have been substituted by a halogen atom (X). The general formula for a halogenated hydrocarbon is R-X.  R represents a hydrocarbon.

Learning Tip

Halogenated hydrocarbons are known also as alkyl halides and organic halides.


Fig. 1 General formula of an alkyl halide



Recall that the halogen atoms are found in Group 17 atoms of the periodic table.


Fig. 2

Many common products contain halogenated hydrocarbons. Examples include the following:





 
 
Fig. 3  Chloroform

 




 
 
Fig. 4  Halon-1301 (fire suppression agent)

 
 




 
 
Fig. 5  Refrigerant

 
 
 Read pages 417 to 418 in the textbook to learn more about halogenated hydrocarbons.