Applied Chemistry

This present work aims to investigate dyeing performance of some new azo disperse dyes belonging to diazotization of 1, 4-bis (2-amino-1, 3, 4-thiadiazolyl) benzene and coupling with different amines as to comparing and contrasting depth obtained of shade and levelness. Some new dyes, such, has been examined, and assessed. The study was concerned mainly with dye uptake, behavior and efficiency. Color measurements, kinetics and thermodynamic parameters were involved. Conventional dyeing, was considered as control for obtained results.

An experimental investigation of applying a magnetic field and a radiation source horizontally with the direction of alloy once and vertically in another, current range passing through alloy is (1-3) AMP. The increase in temperature will lead to reduce electrical conductivity. The increase in input power causes an increase in output power. The increasing in magnetic field intensity will increase alloy efficiency. The increase in radiation time will increase alloy efficiency. The increase in magnetic field intensity in the presence of radiation will increase the alloy efficiency.

The polymeric membrane using naturally occurring aloe-vera pulp as host and for filler, fine powdered natural waste egg shell was used which served the purpose of second component of the composite. The ratio of the aloe pulp and egg shell (ES) was kept 90:10. The membrane was characterized by different spectroscopic methods, viz., X-ray diffraction, Fourier transformed infra-red spectroscopy and conductivity by impedance spectroscopy. There is a sharp increase in the resistivity with temperature around melting temperature of the crystalline polymer. The attraction of this work is that the ingredients used for constructing the polymer matrix are natural , biocompatible and fully biodegradable.

This physico-chemical study of soil is based on various parameters like pH, conductivity, Total Organic Carbon, Available Nitrogen (N), Available Phosphorus (P2O5) and Available Potassium (K2O). This study lead us to the conclusion of the nutrient’s quantity of soil of Kalol and Godhra Taluka, District- Panchmahal, Gujarat. Results show that average all the villages of both these taluka have medium and high potassium content. The fertility index for available potassium for both this taluka is 2.18. This information will help farmers to decide the problems related to soil nutrients amount of fertilizers to be added to soil to make the production economic.

Synthesis of photoadduct ([Co(NH3)3(C12H8N2)Cl] Cl2) based on [Co(NH3)5Cl]Cl2 and 1,10-phenenthroline (C12H8N2) has been successfully achieved by a photochemical route. The as prepared photoadduct has been subjected to different spectroscopic characterizations. The empirical formula mentioned for the photoadduct has been confirmed by CHN analysis. This was also supported by FTIR spectra. UV-Visible spectroscopy reflects the material to exhibit non-linear optical (NLO) properties as the material was shown to exhibit wide transparency in most part of visible region, which is an essential condition for NLO behavior. This has been confirmed by the second harmonic generation (SHG) test, which clearly revealed a greenish emission of wavelength 532 nm from an incident laser radiation of wavelength 1064 nm. The SHG efficiency for the photoadduct was found to be 0.46 times to that of standard KDP. Also, I-V characteristics shows the material to fallow ohmic behavior with a resistance of 1.2 M?. This has been attributed to the large band gap as obtained from UV-Visible spectra.

The ultrasonic velocity, density and viscosity have been measured for the binary liquid mixture of Cord liver oil + aniline as a function of different composition (0.2%,0.4%,0.6%,0.8% and 1%) and different temperatures such as 303,308,313,318and 323K. The experimental data has been used to calculate some excess parameters namely, adiabatic compressibility (?), intermolecular free length (Lf), free volume (Vf), internal pressure (?i), relaxation time (?), absorption coefficient (?/f¬¬2) and relative association (RA). The results are discussed and interpreted about structural and specific interactions that predominated by hydrogen bonding.

The present investigation was undertaken to study of Cauvery river water at ten different locations in Namakkal district, Tamilnadu, India. The water samples were collected from different places and analyzed for various water quality parameters like Appearance, Adour, Turbidity, pH, EC, TDS, Total alkalinity, Total hardness, Calcium, Magnesium, Sodium, Potassium, Iron, Manganese, Ammonia, Nitrite, Chloride, Fluoride, Sulphate, Phosphate, Tidy’s, Dissolved oxygen, Biological oxygen demand, Chemical oxygen demand. The water quality parameters are analyzed after biomass treatment using vetiveria Zizanoides. Water quality parameters were compared WHO, USPH, BIS

The aim of the current study was to determine the common physico-chemical parameters ( pH, Electrical Conductivity, Dissolved Oxygen content, Biological Oxygen Demand, Total dissolved solids, Hardness, Alkalinity, Acidity) of two different pond water systems - Nainaarkulam and Udaayarpatti kulam at Tirunelveli corporation were analyzed fortnightly from April to June 2019 and found that the water body that receives vegetable garbage, scrap, refuge and organic wastes from the main market of the town was more polluted than the other sites. Both water bodies varied according to the surrounding environments during the period of study. These results were used to inform the common people and decision-makers of the state environmental agencies.

Two novel azo phenols mesogenic group namely 2-sec-butyl-4-(p-tolyldiazenyl)phenyl 4-(dodecyloxy) benzoate I12a,and 4-((4-bromophenyl)diazenyl)-2-sec-butylphenyl 4-(dodecyloxy) benzoate I12b were synthesized .The prepared compound were characterized using FT-IR, 1H-NMR, Mass Spectroscopy and Elemental Analysis. Their mesophase was investigated by Differential Scanning Calorimetry (DSC). Their antioxidant efficiency for Egyptian lubricating base oil was tested via monitoring the oxidation reaction through the change in total acid number (TAN) and viscosity. The obtained results showed that, the efficiency of these compounds was ranked as follows I12a > I12b.

A study has been conducted on Acoustic Parameters of Spindle oil- Ethanol system, on different concentration’s [0.2%, 0.4%, 0.6%, 0.8% and 1.6%] at temperature of 303K using Ultrasonic interferometer. Parameters like Ultrasonic velocity, Viscosity, Density, Adiabatic compressibility, Acoustic Impedance, Free length, Free Volume, Relation Time, Relative Association, Adsorption Coefficient and Molar compressibility are measured and it is helpful for correlation of Molecular interaction of binary mixture spindle oil-ethanol system.