Amiralizodа Amirshоh Amirali, Jurakhonzoda Rauf Jurakhon, Nazarzoda Firdavs Khorkash

Annotation:

This article presents the results of a study of physicochemical parameters such as density, refractive index (refractive index), optical density, and phase transition temperature parameters (melting and solidification temperatures). These parameters were considered as integral indicators for characterizing the molecular structure and state of aggregation of the system. A comprehensive determination of these parameters allowed for a highly reliable assessment of the structural and group characteristics, as well as the quality and technological indicators.

Keywords: cottonseed oil, linseed oil, burdock oil, density, physicochemical parameters, saponification number, acid number, ester number, organic acids, phenol.