Comparison of solubility

FIGURE 6.31 Comparison of solubility results obtained by no-filtration method followed by PLC detection and those obtained by two traditional methods multiscreen filtration followed by UV plate reader, and shake flask method followed by UV plate reader. (Data provided by Steven Hobbs, Courtney Coyne, and Gregory Kazan.)... 

Comparisons of solubilities of trichlorides, tribromides, and triiodides of the lanthanides in a variety of nonaqueous solvents can be found in a Russian review (310). Perhaps the widest range of solubilities of lanthanide(III) salts in nonaqueous media refers not to the trihalides but to the nitrates, whose solubilities in 31 solvents have been measured (312). Unfortunately, these measurements were carried out on the hexahydrates rather than anhydrous materials. 

TABLE I Comparison of Solubility Measurements by UF-LC/MS,Thermodynamic Approach (TD), and Nephelometry ... 

This observed behavior of soy proteins complicates the definition of soy protein solubility, the comparison of solubility data, and the interpretation of solubility experiments. Because the thermodynamic criteria are not met, protein solubility becomes an operationally defined quantity that depends upon the experimental methods of measurement. A number of different operational definitions have been used to measure protein solubility. Each has its own advantages and disadvantages, and limited utility. This plurality, though often desirable, makes it difficult to compare experimental results. 

CA 38, 1637(1944)(Nitration of cellulose in mixts of HNOs O contg materials, such as ether or dichlorodiethyl ether) 139)C.Kullgren, SvenskKemTid 53, 233 41(1941) 56, 221-38 (I944)(ln Ger) CA 36., 262(1942) 40, 2630 (1946XStabilization of NC and comparison of solubilities of NC prepd from wood pulp from cotton) 140)H.A.Aaronson, PATR 1066(1941) (Nitration of high alpha cellulose wood pulp from aspen wood by the Forest Products Lab process) 141)J.M.Williams, OSRD Rpt 898... 

Miyazaki, S., M. Nakano, and T. Arita. 1975. A comparison of solubility characteristics of free bases and hydrochloride salts of tetracycline antibiotics in hydrochloric acid soluticSteem. Pharm. Bull. 23 1197-1204. 

Yokotsuka, K., Ebihara, T, Sato, T. (1991). Comparison of soluble proteins in juice and wine from Koshu grapes. J. Fermentation and Bioengineering, 71, 248-253... 

Table II. Comparison of Solubility of Monomer in Water and Dependence of Polymerization on Soap Concentration...

Table 6 Comparison of soluble support loading capacity...

McKini.ey, 1. G., and D. Savage.. 1994. Comparison of solubility databases used for HLW performance assessment. Fourth inti. conf. on the chemistry and migration behavior of actinides and fission products in the geosphere, pp. 657-65. Miinchen R. Oldenbourg Veriag Publ. 

The groups contribution methods can also be used to calculate solubility in binary (solute-solvent) systems. A comparison of solubilities calculated employing the UNIFAC method with experimental values and values obtained from the Scatchard-Hildebrand theory is given in Table 1.9. 

Figure A-32 Comparison of solubility data measured by Moon [1989MOO] with Th(OH)4(am) in 0.5 M NaC104 and with Th02(cr) in 0.1 M NaC104 at 18°C. The solubility curve for Th02(am, hyd) is calculated using the hydrolysis constants and SIT coefficients selected in the present review, in combination with logj Kl,= 9.5 and log, ° =-(8.1+0.3).

Figure A-32 Comparison of solubility data measured by Moon [1989MOO] with Th(OH)4(am) in 0.5 M NaC104 and with Th02(cr) in 0.1 M NaC104at 18°C.601...

Figure 1. Comparison of solubilities of nickel carbonate (pKgo = 6.87) ar5. nickel hydroxide for active (p so aged (pKgo = 17,2)...

Comparison of solubility parameters of PVC and solvents frequently gives a good prediction. In many cases, Hansen solubility parameters are not verified and their values do not correspond to the properties of some materials. 

Figure 19.11 Comparison of soluble and immobilized forms of a PT catalyst benzyltri-butylammonium chloride in the esterification of benzyl chloride with sodium acetate (redrawn from Desikan and Doraiswamy, 2000)...

TABLE 11.7. Comparison of Solubility Parameters and HLB for Some Common Simple Surfactants... 

Miscibility between the individual polymers is the most important factor to determine the performance characteristics of a polymer blend. Mutual solubility of the phases, the thickness and properties of the interphase formed during blending and the structure of the blend are mainly dependent on the miscibility of individual polymers within a polymer. As a result, a quantitative estimation of interactions is very much important for the prediction of blend properties. Comparison of solubility parameters of individual polymers is an effective method to predict the extent of miscibility within a blend. According to the Hildebrand solubility theory, a large difference in solubility parameters (6p) of individual matrices results in immiscibility between them in the absence of any interfacial compatibil-izer [222]. Jandas et al. have reported that PLA and PHB have Hildebrand solubility parameters (6p) of 23.5 J /cm and 19.8 J Vcm which can turn out to be partially miscibile blends in between them [35]. In case of partially miscible blends, the miscibility can be controlled by compatibili-zation using proper interactables. 

Sun Y, Xi H, Ediger MD, Richert R, Yu L (2009) Diffusion-Controlled and Diffusionless Crystal Growth near the Glass Transition Temperature Relation between Liquid Dynamics and Growth Kinetics of Seven ROY Polymorphs. J Chem Phys, pp 131 Sun Y, Tao J et al (2010) Solubilities of crystalline drugs in polymers an improved analytical method and comparison of solubilities of indomethacin and nifedipine in PVP, PVP/VA, and PVAc. J Pharm Sci 99(9) 4023-4031... 

SunY, Tao J, Zhang GGZ, Yu L (2010) Solubilities of crystalhne drugs in polymers an improved analytical method and comparison of solubilities of indomethacin and nifedipine in PVP, PVPAA, and PVAc. J Pharm Sci 99 4023-4031... 

John C. Bailar, Jr., Comparison of Solubilities of Calcium and Strontium p-Bromo-benzoates in Acetone-Water Mixtures, Ind. Eng. Chem. (Anal. Ed.) 3 362 (1931). 

The conclusions arising from comparisons of dry-stage evaporation rate are therefore different from those arising from comparisons of solubility parameter there may be no optimum solvent. In order to reduce the solvent to low levels quickly, oue must use a solveut that has a relatively poor match of solubility parameters and that has no side chains. Conversely, to relax the polymer chains into stable conditions, one must eusure that the last solveut to leave the film is closely matched to the solubihty parameter of the polymer. Even a very small proportion of good solvent will be held tenaciously. 

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