Determination of Three-Dimensional Solubility Parameters and Solubility Spheres for Naphthenic Mineral Oils

Abstract

The Hansen solubility parameters were determined for three hydrocarbon fluids, equivalent to naphthenic mineral oil of different degrees of refinement. This was done by an indirect method based on the solubility of the hydrocarbon fluids in a system of solvents with known Hansen solubility parameters. It was concluded that the method may serve as a tool to estimate the approximate solubility parameters of naphthenic oil. However, in this study, the accuracy was insufficient to separate naphthenic oil of different degrees of refinement.

Determination of Solubility Parameters for Organic Semiconductor Formulations

“…HSP was already successfully applied to different systems like polymer/multi-walled carbon nanotube composites, napthenic mineral oils, or the negative electron beam resist hexamethylacetoxycalyx(6)-arene . [14][15][16] In the field of organic semiconductors HSP was not used until recently when Hansen and Smith analyzed pristine C 60 and Walker et al analyzed the conjugated polymer 3,6-bis(5-(benzofuran-2-yl)thiophen-2-yl)-2,5-bis(2-ethylhexyl)pyrrolo [3,4-c]pyrrole-1,4-dione (DPP(TBFu) 2 ) and [6,6]-phenyl-C 71 -butyric acid methyl ester (PC 71 BM). [17,18] The term solubility parameter was first described by Hildebrand and Scott.…”

Nonaromatic Green‐Solvent‐Processable, Dopant‐Free, and Lead‐Capturable Hole Transport Polymers in Perovskite Solar Cells with High Efficiency

“…In the absolute solubility test, alkoxy‐PTEG exhibited superior solubility in CB, 2‐MA, and 3‐MC compared to alkoxy‐PC8 and thiophenyl‐PTEG, showing practical solubility in each solvent (>15 mg mL −1 ) (Figure a and Figure S5, Supporting Information) . To systemically investigate solubility properties, Hansen solubility parameters (cohesive energy densities of dispersion (δ D ), polarity (δ P ), and hydrogen bonding (δ H )) and solubility capacity ( R o ) were fitted by introducing the solubility test with various solvents (Figure b and Figure S6, Supporting Information) . Since the Hansen solubility parameters of green solvents, which were estimated using the Yamamoto‐Molecular Break (Y‐MB) theory in HSPiP software, commonly exhibit high polarity and hydrogen bonding (2‐MA: δ D = 18.3, δ P = 4.7, δ H = 4.8 MPa 0.5 and 3‐MC: δ D = 17.5, δ P = 7.7, δ H = 3.9 MPa 0.5 ) than those of CB (δ D = 18.7, δ P = 3.6, δ H = 3.5 MPa 0.5 ), the polymers should possess Hansen parameters closer to those of green solvents, according to the like‐dissolves‐like principle .…”

“…[29] To systemically investigate solubility properties, Hansen solubility parameters (cohesive energy densities of dispersion (δ D ), polarity (δ P ), and hydrogen bonding (δ H )) and solubility capacity (R o ) were fitted by introducing the solubility test with various solvents (Figure 1b and Figure S6, Supporting Information). [34] Since the Hansen solubility parameters of green solvents, which were estimated using the Yamamoto-Molecular Break (Y-MB) theory in HSPiP software, [35] commonly exhibit high polarity and hydrogen bonding (2-MA: δ D = 18.3, δ P = 4.7, δ H = 4.8 MPa 0.5 and 3-MC: δ D = 17.5, δ P = 7.7, δ H = 3.9 MPa 0.5 ) than those of CB (δ D = 18.7, δ P = 3.6, δ H = 3.5 MPa 0.5 ), the polymers should possess Hansen parameters closer to those of green solvents, according to the like-dissolves-like principle. [36] In addition to the parameters, superior R o can lead to high absolute solubility in any solvent, originating from strong interactions with the solvent and weak aggregation with other polymer chains.…”

Miscibility Measurement and Evaluation for the Binary Refrigerant Mixture Isobutane (R600a) + 1,1,1,2,3,3,3-Heptafluoropropane (R227ea) with a Mineral Oil

“…Even so, some solubility parameters such as the polar parameter (related to hydrogen bond) always had considerable error. 19 On the basis of the analysis about the element number and element contribution in the refrigerants, miscibility degree of refrigerants with mineral oils can be predicted easily. F blocked the miscibility, while Cl and H promoted the miscibility.…”