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disclosed for separating low molecular weight alcohols, especially ethanol, from aqueous mixtures  The feed mixture contains alcohol and water with an extractive solvent comprising a substituted and unsubstituted phenol having 6 carbon atoms and alcohol containing 2 to 4 carbon atoms.  In the process the upper stream contains water with minimum amount of solvent that is 99.9% and the bottom stream contains alcohol with minimum amount of water.  The temperature of the process is between 180 to…

CHAPTER 2 LITERATURE REVIEW 2.1 Synthesis of Schiff base Method preparation for Schiff base ligand is a straight forward synthesis and easily modified using different amines and carbonyl compound. This could be one of the reasons that make Schiff base ligand popular in coordination chemistry research. Synthesis of Schiff base ligand commonly, taking place in alcohol through condensation reaction of amines and carbonyl compound. The acid/base catalysis or heating is employed in the synthesis…

δ13C is a comparison between the ratio of carbon 13 and carbon 12 of the object of interest compared to a standard. The cause of the -20‰ of δ13C in the maple syrup is no cause for concern. The reason -20‰ of δ13C may have been a cause for concern is because there are some sugarwoods that will adulterate their maple syrup with corn syrup or cane sugar. Corn syrup, as well as cane sugar, have a higher δ13C content than maple syrup. Typically corn syrup and cane sugar have between -9‰ to -12‰…

air cool without covered carbon powder were similar, but the one covered with carbon were increased the overall hardness than the one without. On the carbonized with water quench it showed the one covered with carbon can provided more hardness (twice or more) than the center and also the one without covered carbon. Introduction: Diffusion on a manufacturing industry is a process of increasing the harness of the metal itself usually is for the alloy that contain carbon, which usually a…

4.2.1. Material: Lead zirconate titanate (PZT) PZT is a short for lead zirconate titanate inorganic compound that has a chemical formula of Pb [ZrxTi1-x] O3 (0 ≤ x ≤ 1). PZT is made and composed of the two chemical elements lead and zirconium combined with the chemical compound titanate while formed under extremely high temperatures. The dielectric constant of PZT can range from 300 to 3850, depending upon orientation and doping. PZT possesses piezoelectric effect meaning that it changes shape…

Which idea below describes the atomic theory? A Atoms make up compounds. B Atoms can be rearranged to form new elements. C Most atoms are metals. D Everything is made up of tiny particles called atoms. ____ 3. Diamonds and graphite are both made of carbon atoms. Why do they have different properties?…

This thesis mainly focused on analysis approaches of twenty potential isomeric and designer drugs of 1-pentylacylindoles series of synthetic cannabinoids compounds associated mainly with naphthoylindoles and benzoylindoles structures, via using various analytical methods. These isomers and analogs represent potential designer modification of banned drugs and show the same elemental composition and yielding identical nominal, exact masses and general analytical properties which make the potential…

Chippewa is another top brand that features boots that are comfortable working on or with concrete. These Apache plain toe boots feature an easy pull on lace-up system with hardware accents for convenience, plus they are easily adjusted for adequate support. A removable cushioned insert and Drill Vamp lining provide long lasting comfort, along with the lightweight Vibram gumlite synthetic outsole for a confident grip on surfaces. Furthermore, these particular boots are featured in a smooth…

The sequence of the reactions employed for the construction of novel indole–benzimidazole-based 1,2,3-triazole hybrids is demonstrated in Scheme 1. Compound 2 was prepared by treating propargyl bromide with 1H-indole-3-carbaldehyde (1) in presence of potassium carbonate in dry acetone at reflux temperature [26]. Compound 2 was further reacted by heating at reflux temperature with o-phenylenediamine (OPDA) in chloroform for 6 h afforded compound 3. Compound 3 coupled with variously substituted…

Magnesium Magnesium is one of the best elements you can own it’s a 3rd period element its part of the alkaline earth metal family. Magnesium is a metal and it’s a solid, with a isotope of 24 and really high energy level. Buy magnesium it’s going to be your favorite purchase you will ever make you won’t regret it. Magnesium was discovered in 1808 by a guy named Sir Humphrey Davy but it was first experimented by joseph black. The Country it was discovered in was England in the United Kingdom.…