Studies in Cu(II) Complexes of 8-Amino-1-naphthol-5,7-,3,6- & 3,5-disulphonic Acids & 8-Amino-1-naphthol-5-sulphonic Acid

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STUDIES OF ULTRASONIC AND VISCOMETRIC BEHAVIOR OF AZITHROMYCIN WITH DIFFERENT SOLVENT SYSTEMS DIOXANE-WATER AND METHANOL-WATER MIXTURE AT 305.15 K

ABSTRACT Antibiotic drug Azithromycin is mainly used for treatments of infectious disease caused by bacteria such as respiratory,skin,ear and sexually transmitted diseases such great importance of azithromycine in human life the densities, ultrasonic velocities and viscosities of azithromycine have been evaluated in different concentrations in 70% dioxane-water and 70% methanol-water mixtures at 305.15 K. Experimental data of sound velocities and densities of solutions in 70% dioxane-water helps to determine the various acoustical parameters such as adiabatic compressibility, apparent molal volumes, intermolecular free length, specific acoustic impedance, relative association etc. for evaluating the molecular interactions present in different solutions were studied. Keywords: Azithromycin drug, dioxane water and viscometric measurements. INTRODUCTION In the fields of medicinal, industrial, biochemistry etc the study of molecular interactions between solutes molecule and solvent media has got great importance. It also helps the study of solute solvent and solventsolvent interactions can by the measurement of relative viscosity and ultrasonic velocity of an electrolyte in solutions EXPERIMENTAL SECTION The chemicals used were of AR grade and were purified by standard methods. Requisite amount of chemicals weighing was done by using electronic balance.By using the Pyknometers the densities of solutions were determined, which was standardized by the standard procedure. Ostwald's Viscometer was used for measurements of viscosity which was kept in elite thermostatic water bath (±0.1°C). The ultrasonic velocity of solution and solvent was determined by using single crystal interferometer (Mittal Enterprises, Model F-81) with accuracy of ± 0.03% and 2 MHz frequency. RESULTS AND DISCUSSION Acoustic parameters, densities and relative viscosities have been determined for all the solutions and were calculated by using different equations 14 and are presented in the followin

ULTRASONIC AND VISCOMETRIC BEHAVIOR OF 5-(2- HYDROXYPHENYL)-3-(3-NITROPHENYL)-4-(2-FUROYL) PYRAZOL WITH DIOXANE-WATER AND ACETONE-WATER MIXTURE AT 303.15 K

ABSTRACT In view of importance of substituted pyrazoles in human life the densities, ultrasonic velocities and viscosities of 5-(2-hydroxyphenyl)-3-(3-nitrophenyl)-4-(2-furoyl) pyrazol have been measured in different concentrations (0.01 to 0.1 mol/dm 3 ) in 70% dioxane-water and 70% acetone-water mixtures at 303.15 K. The experimental data of sound velocities and densities of solutions in 70% dioxane-water have been used to calculate the various acoustical properties such as adiabatic compressibilities, apparent molal volumes, intermolecular free length, specific acoustic impedance, relative association etc. Also the effect of concentration of solute on viscosity has been studied in dioxane and acetone-water mixtures. From the viscosities and acoustical properties, the molecular interactions present in different solutions were studied. Appreciable molecular interactions have been observed between solute pyrazole and binary mixture of solvents, dioxane-water

Ultrasonic and viscometric studies of substituted flavone, isoxazole and pyrazole in 70% acetone-water mixture

1047-1049Ultrasonic velocity and viscosity-density of 4'-methoxy-3-(p-methoxycinnamoyl) flavone (L1), 3-(2-hydroxy-5-methylphenyl)-4-benzoyl-5-(p-methoxyphenyl)isoxazole(L2) and  3-(2-hydroxy-5-methylphenyl)-5-methylpyrazole (L3) at different molalities in 70% (v/v) acetone-water mixture have been measured at 298.5±0.1 K. The values of relative viscosity (ηrel),  apparent molal volume  (ϕv)  and  adiabatic  compressibility  [ϕk(s)] have  been deduced from  these  data. The structure making and breaking properties of the liquid  have been considered as measure of solute-solvent and solute-solute interactions.  The results of the present study  suggest  the  presence of short  range  and  weak interactions

Ultrasonic studies of substituted isoxazoles and pyrazolines in dioxane and dioxane-water mixtures at different temperatures

1203-1205Ultrasonic velocities and densities of 3-(2-hydroxy-3-bromo-5-methylphenyl)-5-phenyl isoxazole (L1), l-phenyl-3-(2-hydroxy-3-bromo-5-methylphenyl)-5-(4-methoxyphenyl) pyrazoline (L2), in dioxane and different percentages of dioxane-water mixtures at different temperatures (303, 308, 313, 318, 323 K ± 0.1 K) have been evaluated at 0.01 M concentration. Different acoustic properties like partial molal volume (ϕv), adiabatic compressibility (βs), apparent molal compressibility (ϕk(s)) intermolecular free length (Lf), relative association (RA) and specific acoustic impedance (Z) have been determined by using single crystal interferometer at 1MHz frequency. The obtained results have been interpreted in terms of solute solvent interactions

Effect of Addition of Strawberry Pulp on Sensory Attributes of Kulfi

It is decided to undertake research work on “Effect of addition of strawberry pulp on sensory attributes of kulfi” because strawberry pulp is an excellent source of vitamin C and manganese. They also qualified as a very good source of dietary fiber and iodine as well as a good source of potassium, folate, riboflavin, vitamin B5, omega-3 fatty acids, vitamin B6, vitamin K, magnesium, and copper. The different levels of Strawberry Pulp 10, 15, 20 and 25 per cent were tried in buffalo milk Kulfi. The product obtained was subjected for organoleptic evaluation by panel of judges. It was discovered that the flavour score for treatment T0, T1, T2, T3 and T4 was 8.16, 8.25, 8.48, 8.18 and 7.90 respectively. Colour and Appearance was 8.51, 8.44, 8.57, 8.23 and 7.69, respectively. Body and texture was 8.24, 8.42, 8.58, 8.22 and 7.90, respectively. T0, T1, T2, T3, and T4 had overall acceptance scores of 8.30, 8.37, 8.53, and 8.18 and 7.82, respectively. The level of 15 Strawberry Pulp had the highest overall acceptance

Studies on acoustic properties of some substituted pyrazole, isoxazole and pyrazoline in dioxane at 303 K

2495-2497Ultrasonic velocities and densities of 3-(2-hydroxy-3-bromo-5-methylphenyl)-5-phenyl isoxazole, 1-phenyl-3-(2-hydroxy-3-bromo-5-methylphenyl)-5-(4-methoxyphenyl) pyrazole (L2), 1-phenyl -3-(2-hydroxy-3-bromo-5-methylphenyl)-5-phenyl pyrazoline and l -phenyl-3-(2-hydroxy-3-bromo-5-methylphenyl)-5-( 4-methoxy-phenyl) pyrazoline at different concentration in dioxane have been carried out at 303 K. Different acoustic properties like partial molal volume, adiabatic compressibility, apparent molal compressibility, intermolecular free length , specific acoustic impedance and relative association, etc .. have been determined. These parameters obtained have been interpreted in terms of solute-solvent and solute-solute interactions