Accession Number : AD0749638

Title :   The Investigation of Organic Sulfur and Phosphorus Compounds as Additives for Lubricating Oils,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Gordash,Yu. T. ; Kharchenko,L. S. ; Rabinovich,I. L. ; Bachinskii,T. P. ; Gupalo,A. P.

Report Date : 30 JUN 1972

Pagination or Media Count : 15

Abstract : It was found that the properties of thiophosphates are influenced strongly by the size of the radical connected with the thiol sulfur. The larger the radical the higher the thermo-oxidative stability, and for O,O-dialkyl-S-alkyldithiophosphates the lower the antiwear properties of the compounds. The following compounds were shown to be promising as multifunctional antiwear additives: trialkyltetrathiophosphates, bis-(O,)-dialkylthiophosphone)disulfides, and mixed ethers of thiophosphoric acids which contain nitrogen in the alkyl radical. The introduction of a trichloromethyl group into a molecule of dialkyldithiophosphates sharply intensifies their antiwear properties. (Author)

Descriptors :   (*ORGANIC PHOSPHORUS COMPOUNDS, *THERMAL STABILITY), (*LUBRICANT ADDITIVES, ORGANIC PHOSPHORUS COMPOUNDS), SULFUR COMPOUNDS, SULFIDES, SYNTHESIS(CHEMISTRY), WEAR RESISTANCE, ANTIOXIDANTS, HALOGENATED HYDROCARBONS, USSR

Subject Categories : Organic Chemistry
      Lubricants and Hydraulic Fluids

Distribution Statement : APPROVED FOR PUBLIC RELEASE