Tetrachlorobenzene isomers added to ProEZGC!

Tetrachlorobenzenes are manufactured as intermediates for the production of fungicides, herbicides, defoliants, insecticides as well as dielectric fluids for transformers (1). There are three isomers with the following chlorine substitutions; 1,2,3,4 / 1,2,3,5 / 1,2,4,5. While the chemical industry measures these compounds for purity they are also found in the environment as the result of leaking transformers and to a lesser extent from the manufacture of paper. In the pulp and paper industry these compounds can be a byproduct of the bleaching process which uses chlorine and chlorine dioxide (2).


Image of 1,2,3,4- tetrachlorobenzene.












We have had several requests for these compounds and have added them to the over 500 compounds currently on the Rxi-624Sil MS ProEZGC library.

On the Rxi-624Sil MS, the isomers elute in the order as they are listed below:

  • 1,2,3,5- Tetrachlorobenzene
  • 1,2,4,5- Tetrachlorobenzene
  • 1,2,3,4- Tetrachlorobenzene


Figure 1: Shows the Tetrachlorobenzene isomers with alkanes on the Rxi-624Sil MS.


  1. Government of Canada. 1993. Tetrachlorobenzene. Canadian Environmental Protection Act Priority Substances List Assessment Report. Environment Canada and Health Canada, Ottawa.
  2. US EPA. 1994. Locating and Estimating Air Emissions from Sources of Chlorobezenes (revised). EPA-454/R-93-044. Office of Air Quality Planning and Standards. Research Triangle Park, NC.


Leave a Reply

Restek Domestic Customer Service



Your Full Name

Your Email

Company Name


Spam Block (Please leave this blank)

all fields required

Thank you

Your message has been sent. We will be in touch shortly.

Message not sent

Sorry, your message could not be sent at this time. Please try again later, or contact Restek or your local Restek representative via phone.