The removal of acid gases from gas streams by using suitable solvent like alkanolamine, commonly referred to as gas sweetening, is a technology that has been in use industrially for over half a century. In this work artificial neural network (ANN) has been used to predict the equilibrium solubility of CO2 over the alkanolamine solvents N-methyldiethanolamine (MDEA) and 2-amino-2-methyl-1-propan...

A highly efficient and recyclable Ir catalyst bearing a 4,7-dihydroxy-1,10-phenanthroline ligand was developed for the evolution of high-pressure H2 gas (>100 MPa), and a large amount of atmospheric pressure H2 gas (>120 L), over a long term (3.5 months). The reaction proceeds through the dehydrogenation of highly concentrated aqueous formic acid (FA, 40 vol %, 10 mol L-1 ) at 80 °C using 1 μmo...

Guest-host complex formation of three drug derivatives of anthranilic acid, mefenamic acid, niflumic acid, and flufenamic acid with 2-hydroxypropyl-β-cyclodextrin (2HP-β-CD) in aqueous solutions was investigated using "Phase solubility study" with UV-vis spectrophotometry. Solubility of sparingly soluble drugs has been improved by addition of 2HP-β-CD at two temperatures 298.15 K and 310.15 K a...

The various methods described in recent years for determining the cardiac output of man consist essentially either 1, in an application of the Fick principle, or 2, in measuring the rate with which either a normally present gas (nitrogen) or a foreign gas (nitrous oxide, ethyl iodide or ethylene) is exchanged during the passage of the blood through the lungs. Results obtained by the carbon diox...

Organic matter (OM) uptake in cloud droplets produces water-soluble secondary organic aerosols (SOA) via aqueous chemistry. These play a significant role in aerosol properties. We report the effects of OM uptake in wet aerosols, in terms of the dissolved-to-gas carbon dioxide nucleation using molecular dynamics (MD) simulations. Carbon dioxide has been implicated in the natural rainwater as wel...

The immune system is one of the most important things that need to be preserved in midst Corona Virus Disease 2019 (Covid-19) pandemic. Consuming components compounds contained Madeira vine (Binahong) leaf oil right and regular doses can way enhance system. This obtained by carrying out extraction process with reflux method on leaf. study aimed determine optimal time temperature process. was ca...

The solubility of uric acid in water was determined by His and Paul 1 to be about I in 39,500. Uric acid is very slightly dissociated, less than IO per cent. in saturated solution. His and Paul have, however, confined the solubility within too narrow limits. If one shakes large crystals of uric acid in water for a day at room temperature, one cannot reach a solubility of I in 40,000; if, howeve...

There are a variety of approaches to removing gaseous pollutants from effluent streams: absorption, adsorption, condensation, chemical reaction, incineration, and selective diffusion through a membrane. Absorption is an operation involving mass transfer of a soluble vapor component to a solvent liquid in a device that promotes intimate contact between the gas and the liquid. The driving force f...

to day, the activated carbon is being used to treat the industrial and domestic wastewaters. the suitability of activated carbon for treatment of industrial wastewaters can be quickly predicted by consideration of wastewater characteristics. the results of this paper represent a first step in determining suitability of activated carbon for treatment of wastewaters or effluent of treatment plant...