Acetic acid 1 Acetylation 1 Additives 1 Ascorbic acid 1 Bio-additives 1 Biomass 1 Chemical equilibrium 1 Chemical equilibrium modeling Chemical equilibriums 1 Esterification 1 Free energy 1 Gibbs free energy 1 Gibbs free energy minimization 1 Glycerol 1 Glycerol conversions 1 High quality 1 Molar ratio 1 Physicochemical properties 1 Physicochemical property 1 Property 1 Specific heat 1 Thermodynamic data 1 Thermodynamics property 1 pH 1