A. Oil lubricant-cooling liquids

The effect of sulfur, chloride, and phosphorus additives on the thermophysical properties of these lubricants is studied in Pikus (1977) and Novichenok and Pikus (1977). Temperature dependencies are governed by Equation 511.7. The additives (up to 20%) are shown to affect inconsiderably (by no more than 12%) thermophysical properties.

B. Aqueous lubricant-cooling liquids

In calculations these are usually considered as binary solutions: water + concentrate (emulsol, synthetic oil, etc.). The Following empirical formulas are known: Filippov’s (Filippov 1970) formula is

\[\label{eq1} \lambda =\lambda_1x_1+\lambda_2x_2-0.72(\lambda_1-\lambda_2)x_1x_2 \tag{1}\]