Pentachlorophenol laurate

A similar study was performed in the textile industry where the workers were exposed during the fabrics impregnation, and in the leather industry where the workers were exposed during the tanning process. In these two branches pentachlorophenol or pen-tachlorophenol laurate were used, products highly contaminated by PCDDs, the level of PCDFs being much lower, see Table III. The values of the blood and urine analyses are given in Table IX. 

Pentachlorophenol and its salt, sodium pentachlorophenate, are used primarily as wood preservatives on telephone poles, pilings and fence posts. In Europe, pentachlorophenol and its derivatives, sodium pentachlorophenate and pentachlorophenyl laurate are used to control sap stain in green lumber. It is also used in Europe on millwork to prevent the growth of mould and fungi, and as a preservative for waterproof materials (i.e., tarpaulins) that are used in outdoor applications. In the United States, it is used almost entirely for treatment of utility poles (Agency for Toxic Substances and Disease Registry, 1994). 

Pentachlorophenyl laurate (PCPL) is, as long as pentachlorophenol (7.5.4. = PCP) is not liberated, of low toxicity and good skin compatibility, however the ester may release approx. 57% pentachlorophenol the toxicity data of which are listed under 7.5.4. 

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