Conclusions
Chlordan is a non-planar molecule and thus can adsorb onto a catalyst surface in a range of orientations. Thus catalytic removal of chlorine atoms must be a stepwise process. Incomplete dechlorination is thus to be expected and is indeed found in many cases. However catalysis of Chlordan over a 5 % platinum catalyst at 200° removes all chlorine atoms to yield tetrahydrodicyclopentadiene. For a palladium catalyst the major product appears to be a mono-chloro species. These results represent a significant simplification over that achieved when a Ni2B catalyst is used, from which reaction a pentachloro species results. Thus it has been shown that Chlordan can be rapidly and easily resolved from other complex polychlorinated species by hydrodechlorination.
Similar content being viewed by others
References
COOKE, M., G. NICKLESS, A.M. PRESCOTT and D.J. ROBERTS: J. Chromatogr.156, 293 (1978).
COOKE, M., G. NICKLESS, D.J. ROBERTS and K.D. KHALLEF: J. Chromatogr.178, 183 (1979).
DE KOK, A., R.B. GEERDINK, R.W. FREI and U.Th. BRINKMAN: Intern. J. Environ. Anal. Chem.9, 301 (1981).
DENNIS, W.H., Y.H. CHANG and W.J. COOPER: Bull. Environ. Contam. Toxicol.22, 750 (1979).
DENNIS, W.H., and W.J. COOPER: Technical Report 7702, U.S. Army Biomedical Engineering Research and Development Laboratory, Fort Detrick, Md., 21701.
GREENHALGH, R.: J. Assoc. Off. Anal. Chem.61, 841 (1978).
HOLMSTEAD, R.L., S. KHALIFA and J.E. CASSIDA: J. Agric. Food Chem.22(6), 939 (1974).
KEARNEY, P.C.: J. Assoc. Off. Anal. Chem.59, 866 (1976).
KUTZ, F.W., G.W. SOVOCOOL, S. STRASSMAN and R.G. LEWIS: Bull. Environ. Contam. Toxicol.16, 9 (1976).
LAUNER, J.E.: J. Assoc. Off. Anal. Chem.62, 332 (1979).
MUSOKE, G.M.S.: M. Sc. Thesis, Bristol University, 1980.
PANZEL, H. and K. BALLSCHMITER: Z. Anal. Chem.,271, 182 (1974).
RANDALL, W.F., W.H. DENNIS and M.C. WARNER: Bull. Environ. Contam. Toxicol.21, 849 (1979).
SMITH, K.F.: Ph.D. Thesis, Bristol University, 1980.
SMITH, K.F. and M. COOKE: Bull. Environ. Contam. Toxicol.25, 866 (1980).
SOLOWAY, S.B.: Advan. Pest. Control. Res.6, 85 (1965).
VEITH, G.D., and L.M. KIWUS: Bull. Environ. Contam. Toxicol.17, 631 (1979).
WHETSTONE, R.R.: Encyclopedia of Chemical Technology, 2nd Ed., New York, Interscience (1964).
Author information
Authors and Affiliations
Additional information
Chlordan is preferred to Chlordane (Whetstone 1964) because the latter contravenes the practice of reserving the termination “-ane” for saturated hydrocarbon systems.
Rights and permissions
About this article
Cite this article
Sawula Musoke, G.M., Roberts, D.J. & Cooke, M. Heterogeneous hydrodechlorination of chlordan. Bull. Environ. Contam. Toxicol. 28, 467–472 (1982). https://doi.org/10.1007/BF01607712
Issue Date:
DOI: https://doi.org/10.1007/BF01607712