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Project at a Glance Contents on the CD ROM
  • Paradichlorobenzene is used as a fumigant insecticide to control clothes moths.
  • Paradichlorobenzene is a colorless to white solid crystal with a strong pungent odor. It will sublimate, turning from a solid directly into a gas, at room temperatures.
  • Trade names for para-dichlorobenzene include Di-chloricide, Dichlorocide, Evola, Paradi, Paradow, Paramoth, Persia-Perazol and Santochlor.
  • The manufacture of p-DCB is accomplished by the fluid phase chlorination of benzene in the presence of a catalyst, usually ferric chloride, aluminium chloride or stannous tetrachloride, at atmospheric pressure between 20 to 80C.
  • Paradichlorobenzene was first registered for use in the United States in 1942, and it is sometimes called 1,4-dichlorobenzene.
  • Paradichlorobenzene is also used in deodorant blocks for rest room toilets and trash containers.
  • It has been used as an insecticide for the control of termites and other organisms in soil and as a fungicide agent for the control of plant diseases.
  • Domestically, p-DCB is used in households as a deodorant freshener. It has some minor use as a moth repellent and mildew control agent and in the agricultural and pharmaceutical industries.
  • Worldwide, p-dichlorobenzene is used primarily as a raw material for polyphenylene sulfide (PPS) resins, for deodorant blocks for indoor air, and for moth control.
  • In 2010, there are over thirty products registered with the U.S. Environmental Protection Agency that contain paradichlorobenzene.
  • An estimated 5 tonnes per year (less than 1%) of p-DCB are used in the agricultural sector.
  • The three main chlorobenzenes—monochlorobenzene and ortho- and para-dichlorobenzene, account for 99% of the global chlorobenzenes market.
  • Paradichlorobenzene Fact Sheet
  • Pesticide Database
  • Paradichlorobenzene poisoning
  • Technical Factsheet
  • 1,4-Dichlorobenzene


  • Action
  • Moth Cake
  • Big D Para Block
  • Paradichlorobenzene Blocks
  • Para Blocks and Crystals
  • Deodorant blocks
  • Perfumed Bowl Fresh Toilet Bowl Deodorizer
  • Krystal Para
  • Paracide
  • Para-Zyme
  • Safety data for 1,4 - dichlorobenzene
  • Triple S
  • Urinal Cake


  • Air Freshener
  • Benotol
  • Respiratory Hazards and Restroom Deodorant Blocks
  • p-DCB


  • Process for producing para-dichlorobenzene
  • Steam reactivation of zeolite catalyst used in producing
  • Isomerization of para-dichlorobenzene
  • Treatment of para-dichlorobenzene
  • Process for separating para-dichlorobenzene from isomeric mixture of
  • Process for preparing paradichlorobenzene


  • Apparatus for the study of electronic spectra of collisionally cooled
  • Dichlorvos exposure impedes extraction and
    amplification of DNA from insects in museum
  • Freezing Point of Paradichlorobenzene
  • Determination of para-dichlorobenzene residues in honey by purge and
    trap with GCMSD
Manufacturing Process
  • Assessment Report
  • How it is made?
  • Euro Chlor Risk Assessment
  • Purification of para-Dichlorobenzene
  • Dichlorobenzenes

Company Profiles

  • Company from Delhi (India)
  • Company from China
  • Company from Belgium
  • Company from Gujarat (India)
  • Another Company from Gujarat (India)
  • Company from Australia
  • Company from Maharashtra(India)


  • Consultant from Washington
  • Consultant from Australia
  • Consultant from Minnesota
  • Consultant from California


  • Suppliers of Paradichlorobenzene
  • Indian Suppliers
  • Chinese Suppliers
  • Paradichlorobenzene Suppliers


  • Environmental Fate of Paradichlorobenzene
  • Health Effects Information
  • Proposed Re-evaluation Decision
  • Re-evaluation Decision
  • Reregistration Eligibility Decision for Para-dichlorobenzene
  • Chronic Toxicity Summary


  • Acute Haemolytic Anaemia Following the Ingestion of Para-Dichlorobenzene
  • Proposed Amendments
  • European Union
    Risk Assessment Report
  • Initial Assessment Report
  • Moth repellent toxicosis

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