Accession Number : AD0284223

Title :   ANALYSIS OF CREOSOTE BY INFRARED SPECTROSCOPY

Descriptive Note : Rept. on type C.

Corporate Author : NAVAL CIVIL ENGINEERING LAB PORT HUENEME CALIF

Personal Author(s) : DRISKO,R.W.

Report Date : 25 AUG 1962

Pagination or Media Count : 25

Abstract : As a part of the Laboratory's task to develop materials and techniques for treating timbers to retard or prevent marine borer attack, infrared spectroscopy was used to obtain analytical data from a number of creosotes that would have been difficult to obtain by chemical means. A method was devised to distinguish by infrared spectroscopy pure coke-oven creosote from low-temperature or vertical-retort creosote. Infrared spectroscopy can also be used to detect adulteration of coke-oven creosote with petroleum containing saturated hydrocarbons or aromatic hydrocarbons with saturated hydrocarbon chains. Spectral differences were detected in creosote extracted from a pair of similarly creosoted panels, one of which was exposed in a harbor and the other of which remained on a shelf in the laboratory. Spectral differences were also noted in creosote extracted from different cross-sectional depths of marine piling. Creosote from the outermost portion of the piling contained a greater amount of saturated hydrocarbons and a greater amount of oxidation products than did creosote from further into the interior of the piling. Olefins were shown to be present in the saturated hydrocarbon chromatography fraction of a number of creosotes. This is believed to be the first report of the presence of olefins in creosote. (Author)

Descriptors :   *CREOSOTE, INHIBITION, MARINE BORERS, PIERS, PROCESSING, SPECTROGRAPHIC ANALYSIS, TESTS

Distribution Statement : APPROVED FOR PUBLIC RELEASE