Diesters Biolubricant Base Oil: Synthesis, Optimization, Characterization, and Physicochemical Characteristics

Table 8

Physicochemical characteristics of OLHYOOD.

Properties	HYOOA^a	OLHYOOD^b	IBHYBOD^c
Pour point (°C)	−51	−62	−60
Flash point (°C)	251	264	297
Viscosity at 40°C (cSt)	324.5	136.5	—
Viscosity at 100°C (cSt)	33.05	22.3	—
Viscosity Index (°C)	153	192	123
Oxidative stability OT (°C)	180.24	215.24	64

Notes: 9(12)-hydroxy-10(13)-oleioxy-12(9)-octadecanoic acid (a); oleyl 9(12)-hydroxy-10(13)-oleioxy-12(9)-octadecanate (b); isobutyl 9-hydroxy-10-behenoxyoctadecanate [7] (c).