title: Aqueous solubility data for pressurized hot water extraction for solid heterocyclic analogs of anthracene, phenanthrene and fluorene.
abstract: We report the aqueous solubilities of phenanthrene and several solid three-ring aromatic heterocycles (phenanthridine, acridine, phenazine, thianthrene, phenothiazine, phenoxathiin, phenoxazine, carbazole, dibenzofuran, dibenzothiophene, and 4,6-dimethyldibenzothiophene) at temperatures ranging from 313K to the solute melting point and at a pressure of 5MPa. The data were measured by dynamic saturation method using an in-house-assembled apparatus for pressurized hot water extraction (PHWE). The solute from a known mass of the saturated aqueous solution was transferred to an organic solvent (hexane or toluene), and the organic phase was analyzed by GC/MS. In any of the solutes, the GC/MS records did not indicate any noticeable decomposition within the temperature range of the measurements. The resultant solubilities were converted to activity coefficients of the individual solutes in saturated aqueous solutions, and the results are discussed in terms of temperature and type/number of heteroatoms.
authors.affiliation: Institute of Analytical Chemistry, Academy of Sciences of the Czech Republic, Veverí 97, 60200 Brno, Czech Republic.
authors.forename: Pavel
authors.initials: P
authors.lastname: Karásek
authors.forename: Josef
authors.initials: J
authors.lastname: Planeta
authors.forename: Michal
authors.initials: M
authors.lastname: Roth
mesh_terms: D000873:Anthracenes / Q000302:isolation & purification*; D005591:Chemical Fractionation / Q000295:instrumentation / Q000379:methods*; D005449:Fluorenes / Q000302:isolation & purification*; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods; D006575:Heterocyclic Compounds, 3-Ring / Q000302:isolation & purification; D006358:Hot Temperature; D010616:Phenanthrenes / Q000302:isolation & purification*; D011084:Polycyclic Aromatic Hydrocarbons / Q000302:isolation & purification; D011312:Pressure; D012995:Solubility; D014867:Water
chemical_list: D000873:Anthracenes; D005449:Fluorenes; D006575:Heterocyclic Compounds, 3-Ring; D010616:Phenanthrenes; D011084:Polycyclic Aromatic Hydrocarbons; D014867:Water; C041509:fluorene; C031181:phenanthrene; C034020:anthracene