3,4-Dichloroaniline. Documentation
Journal Title: Podstawy i Metody Oceny Środowiska Pracy - Year 2013, Vol 29, Issue 2
Abstract
3,4-Dichloroaniline (3,4-DCA) is a solid substance that appears as light-brown crystals or needles with a characteristic odor. It is classified as a toxic substance exerting toxic effects via inhalation, through the skin and by ingestion. 3,4-Di-chloroaniline can cause damage to the eyes and induce allergy by dermal contact. 3,4-Dichloroaniline is produced in large quantities. In the European Union, it is produced and/or imported by seven chemical companies, operating in three countries. Almost the whole production of this substance is transformed into 3,4-dichlo-rophenyl- isocyanate, an initial compound for the production of phenylurea herbicides (propanil, diuron and linuron). The remaining amount is used in the production of azo disperse dyes for polyester fibers. In Poland, linuron is used in the form of five preparations, while the registration of diuron has expired and its application is no longer allowed (information provided by the National Institute of Hygiene). 3,4-Dichloroaniline is produced in closed systems so that occupational exposure to this compound occurs mainly when collecting and analysing samples, and when maintaining devices used in its production. 3,4-Dichloroaniline production and processing take place at an elevated temperature (about 90[sup] o[/sup]C). Inhalation of fumes or particles produced by gas phase condensation and dermal contact are possible routes of exposure to 3,4-di-chloroaniline.
Authors and Affiliations
Andrzej Sapota, Małgorzata Skrzypińska-Gawrysiak
Keywords
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