A Determination of the Hansen Solubility Parameters of Hexanitrostilbene (HNS)

Abstract

The temperature‐dependent solubility of hexanitrostilbene (HNS) [CAS# 20062‐22‐0] was determined in ten solvents and solvent blends using the Tyndall effect. Thermodynamic modeling of the data yielded Flory interaction parameters, the molar enthalpy of mixing, the molar entropy of mixing, and the molar Gibbs energy of mixing. All solutions exhibited endothermic enthalpies and positive entropies of mixing. The presence of water in some of the solvent blends made dissolution increasingly endothermic and disfavored solubility. The solubilities of HNS at 25 °C were used to determine the three‐component Hansen solubility parameters (HSP) (δD=18.6, δP=13.5, δH=6.1 MPa1/2) and the radius of the solubility sphere (R0=5.8 MPa1/2). The HSP determined for HNS using group‐additivity (δD=21.0, δP=13.3, and δH=8.6 MPa1/2) also correctly predicted the optimum solvents for this explosive.

Efficient P(3HB) extraction from Burkholderia sacchari cells using non-chlorinated solvents

“…All the reported values of the Hansen parameters were obtained from Hansen's handbook (2007), except for phenetole [31]. Since none of the solvents selected from the GSK Guide was used for the original calibration of equation (1), this equation has been applied in the current work in a merely predictive mode.…”

Solubility of N,N′-Di(1-naphthyl)-N,N′-diphenyl Benzidine (NPB) in Various Organic Solvents: Measurement and Correlation with the Hansen Solubility Parameter

“…[3][4][5][6][7][8]12,13,[15][16][17][18][19][20][21][22][23][24][25][26][27] The solubility parameter in its original Hildebrand form  (MPa 1/2 ) is defined as the square root of the cohesive energy density:…”

“…[4][5][6][7]12,[18][19][20][21][22][24][25][26][27] This method is based on the principle that good solvents are located within a threshold radius 0 R from the solute ( Figure 1. Solubility of NPB in organic solvent was determined from the UV absorbance of saturated solution prepared in the following procedure.…”

Descriptors for High‐Energy Nitro Compounds; Estimation of Thermodynamic, Physicochemical and Environmental Properties

“…Hexanitrostilbene (HNS) . Reports on the solubility of HNS are available [46, 47], but the experimental data are inconsistent, and so we used only the solubilities recorded by Chen et al. [47].…”