Abstract
Thermochemical and mechanochemical reactions of tricresyl phosphate, tributyl phosphate, and tributyl phosphite with an iron surface are studied. A possible mechanism of iron phosphide formation under severe boundary friction conditions is proposed. The antiscoring behavior of phosphine in a vaseline oil solution is studied for the first time. It is found that (a) iron powders modified by tricresyl phosphate or tributyl phosphite do not yield iron phosphide at a temperature of 710°C in vacuum but are reduced to iron phosphide by birch coal; (b) at a temperature of 760°C in a flow reactor, tricresyl phosphate produces a much greater amount of solid phosphorous-containing residue than tributyl phosphite; (c) at a temperature of 760°C in a flow reactor, tributyl phosphite produces white phosphorus; (d) phosphine improves effectively the antiscoring properties of vaseline oil.
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