Solvent

organic solids. This process is carried out by the separation of compounds based on the difference in solubility. The steps to recrystallization can be described by the following • Choose an appropriate solvent based on the compound’s characteristics • Dissolve the compound in the minimum amount of solvent • Slowly cool the solution to form the crystals • Collect and wash the crystals utilizing a filtration set up • Dry the crystals through vacuum filtration and natural evaporation in the…

After deprotonation of 6.8 mmol naphthalen-2-ol by 14.0 mmol NaOH, the resulting anion was placed together with 8.8 mmol 1-iodobutane, and the reaction was performed by reflux in 20 mL of ethanol (EtOH) solvent, and the product was allowed to cool on ice and collected by suction filtration. The final crystals had a very pale amber color and were odorless. The following week, after being allowed to completely dry for a week at room temperature, the IR spectrum of the product in liquid suspension…

diphenylmethyl cation. At the beginning, although chloride ion is a better nucleophilic reagent than water, its concentration is so small that it can be neglected, while the concentration of water is so large that it does not appear in the rate formula as the solvent. During the process of the reaction, the concentration of chloride ion increases gradually and the effect of the competition between chloride ion and water becomes important enough to be taken into consideration in the later period,…

using two immiscible solvents, and because of each compounds solubility in each of those solvents, the mixed compounds can separate. Generally, this process includes water as one of the immiscible solvents, but for this lab, t-butyl methyl ether was used to dissolve our mixture. Our mixture was made up of Benzoic acid, p-t-Butylphenol, and Acetanilide. The chemical structure for each compound listed previously, including the solvent, is shown below in Figure 1. By shaking the solvents together…

Extraction involves dissolving a compound or compounds either from a solid into a solvent or from a solution into another solvent. In extractions it is important to mix the layers very well to get a clear visual of the two solvents in the solutions. We use the solvent extraction techniques to effectively separate an organic, Base, Acid and neutral compounds. Within each of these layers the experiment is modified to fit each of the different situations. So when looking at the solids, carboxylic…

salts tested, because before this experiment it was determined by the flame test that the compound was a sulfate (explained later). This information means that the unknown compound is polar, because it is soluble in water. This is because H2O, the solvent, is polar, and the solute, the unknown, dissolved in water, because similar compounds will dissolve other similar compounds it can…

compound had the melting point at 165.2oC. The experiment showed the connection of polarity and solubility of the compound in order to recrystallize. II. Introduction A solid’s purification, when recrystallized with a solvent, is depending on the solubility of it in a given solvent. When the sample contains…

had the smell of alcohol. Solubility analysis is a method of identifying compounds based on how their behavior in other compounds. Solubility is the ability of a solvent to dissolve a solute. For a solvent to dissolve a solute, it has to be able to break the intramolecular forces of the solute. The intermolecular forces between the solvent and the solute have to be greater than the intramolecular forces between the solute particles. Polar substances dissolve in other polar substances so if an…

vigorous mixture of original and extraction solvent, an optimization of physical contact (surface area) between the extraction solvent and desired compound drives the compound to migrate into the extraction solvent because of its more favorable solubility. There are four rules that dictate whether a chosen solvent can efficiently be used to extract a specific compound. For one, the original solvent and extraction solvent must be immiscible. If these solvents do mix, one will only make a more…

the molecule to which the pyrene was to be attached. Other reactants and solvents include HATU, HBTU, N, N-Diisopropylethylamine (DIPEA), sodium azide, Dimethylformamide (DMF), and Diphenyl phosphoryl chloride and were bought pure or used as received. All reactions were run at room temperature (298.15 K) and standard pressure unless otherwise noted. The routine lab equipment included a rotary evaporator (evaporating solvents off by lowering boiling point through pressure and temperature…