the extended hildebrand solubility parameter approach (ehsa) is used to estimate the solubility of satranidazole in binary solvent systems. the solubility of satranidazole in various water-peg 400 mixtures was analyzed in terms of solute-solvent interactions using a modified version of hildebrand-scatchard treatment for regular solutions. the solubility equation employs term interaction energy ...

barium sulfate (barite) is one of the widely used weighting materials in the preparation of drilling fluid for deep oil and gas wells. barite is not soluble in the regular solvents; such as, hydrochloric acid (hcl) and other acids. therefore, in this study, we focused on evaluating the dissolution of the industrial barite particles in different chelating agents. chelating agents; such as, dieth...

4-tert-Butylbenzenesulfonamide was used as a substituent of tetra peripherally substituted Fe(ii) phthalocyanine, taking into account several parameters crucial for the design of potential oxidation catalysts such as solubility and stability. The resulting phthalocyanine exhibits a remarkable stability under oxidative conditions. The main product of the oxidation of cyclohexene using H2O2 as th...

Aalto University School of chemical technologyDepartment of forest product technology Master’s Programme in Process System Engineering Author: Alireza Monshizadeh Title: Influence of the molecular weight of cellulose on the solubility in ionic liquid-water mixture Number of pages:57 Date: 23.11.2014 Language: English Professorship: Process system engineeringPlant design Code: KE-107 Supervisors...

Bamboo is a board group of over 1250 species, belongs to grass family. It may have a potential as bio energy for production of biomass drive fuel. As the energy consumption rate increases by every year and about 80% of world’s energy depends on petroleum. Bio fuel may be an alternative source of energy up to the future. Previously ionic liquids have shown good solubility of lignocelluloses mass...

In a study of the solubility of crystalline forms of cholesterol in various solvents, the solubilities (per cent by weight) of cholesterol needles and hydrated plates at 38#{176} were, respectively, 4.0 and 3.2% in olive oil; 2.6 and 1.9% in tetradecane; 26.2 and 9% in toluene; and 21.0 and 7% in cyclohexane. When these solvents are in equilibrium with an aqueous phase, needles are converted to...

In recent years, co-milling of active pharmaceutical ingredients (APIs) with excipients is being investigated as a promising technique to improve desired properties such as solubility and dissolution profiles, bioavailability, aerosolization and physical stability. Traditionally, excipients are simply blended into a drug formulation to improve the manufacturability or product quality, e.g. to i...

The properties of a variety of mouth protectors and sheet materials used to fabricate custom mouth protectors were determined in order to recommend limits for a specification. Hardness, water sorption, water solubility, impact absorption, and tear strength were measured, and limits for these properties were suggested.

We study the quotient of a free product of groups by the normal closure of a word that is contained in a certain type of 2-generator subgroup, and hence can be expressed in the form of a pushout involving a generalized triangle group. Using the theory of generalized triangle groups, we extend the range of conditions under which a number of results for one-relator products of groups, such as the...

Anti-solvent crystallization can be used as an alternative to cooling or evaporation for the separation and purification of solid product in the pharmaceutical industry. Addition of antisolvent reduces the solubility of a solute in solution thereby facilitating the generation of supersaturation, the driving force for nucleation and growth. Some of the problems associated with anti-solvent cryst...