W. Klein

Bildung von chlorierten organischen verbindungen bei der verbrennung von polyäthylen in gegenwart von natriumchlorid

Zusammenfassung Increasing attention has been given for some years now to the occurrence of halogenated organic compounds in stack gases and fly-ash incineration plants. Upon combustion of an organic matrix containing polyethylene and with sodium chloride as the only chlorine source, it could be demonstrated that chloroaromatics are formed. Thus, not only organochlorines present in the material burnt but also inorganic chlorine may be a source of organochlorine emissions.

Contributions to ecological chemistry CXLII: Separation and identification of metabolites excreted by rats after long term oral administration of imugan-14C

Abstract Rapid conversion and high rate of excretion of the fungicide, Imugan- 14 C (N-formyl-N′ - (3,4-dichlorophenyl)-2, 2, 2-trichloroacetaldehydeaminal, Fig. 1) has been observed in rats upon long term oral administration 2 . In simulated waste composting experiments 3 this fungicide is metabolized to 3,4-dichloroaniline (3,4-DCA). 3,4-DCA and 3,3′, 4,4′-tetrachloroazobenzene (3,3′, 4,4′-TCAB) have been isolated from soil treated with it 4 . Algae have been found to convert it to a ring hydroxylated monohydroxy 3,3′,4,4′-TCAB 5 . In this work, the isolation and structure elucidation of metabolites of Imugan excreted with urine and faeces of rats are reported.