Accession Number:

AD0412357

Title:

SURFACE REACTION OF IRON WITH THIO- AND PHOS PHORUS- ORGANIC COMPOUNDS DISSOLVED IN HYDROCARBONS,

Descriptive Note:

Corporate Author:

INSTITUTO DE QUIMICA FISICA (SPAIN)

Report Date:

1963-04-30

Pagination or Media Count:

105.0

Abstract:

The use of compounds labelled with S-35 or P-32 permits the study of the surface interaction of extreme pressure lubrication additives with Fe. Hexadecane has been used as solvent. The efficiency of the radiochemical method has been emphasized. In the work here described, the be haviour of a series of butyl sulphides and poly sulphides up to the tetrasulphide has been studied. A mechanism to explain the surface reaction has been postulated, taking into account the lability of the S atoms in the molecules. The presence of oxygen increases the reactivity of mono- and disulphides, but decreases that of the mercaptans, this diminution being more im portant in the case of tri- and tetrasulphides. A mechanism to explain the action of oxygen in this sulphuration reaction has been proposed. The behaviour with Fe of tricresyl phosphate and tributyl phosphite has been studied. In both cases a decisive influence of oxygen in the kinetics of the surface reaction has been ob served. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE