Determination of the effect of sodium chloride concentration and substrate temperature on the change in its density

The article presents the results of studies to determine the effect of salt concentration and substrate temperature on its density. After statistical processing of the experimental results, a linear model of the regression equation was obtained, which adequately describes the process of changing the density of the substrate in a selected range of factors. It was found that with increasing temperature of the substrate, its density decreases, and with increasing concentration of salt, the density increases.