Ethyl acetate

Organic Acids An organic acid is an organic compound with acidic properties. The most common organic acids are the carboxylic acids, whose acidity is associated with their carboxyl group –COOH. Sulfonic acids, containing the group –SO2OH, are relatively stronger acids. Alcohols, with –OH, can act as acids but they are usually very weak. In general, organic acids are weak acids and do not dissociate completely in water, whereas the strong mineral acids do. Lower molecular mass organic acids such…

Molar Mass as 696.7 gmol-1) used in the present work (Fig.1a) and zinc acetate dihydrate were purchased from LOBA Chemie Company, India. Methylene blue (MB) a cationic dye (C16H18N3SCl and Molar Mass of 319.85 gmol-1) as shown in Fig.1b, was purchased from Oxford laboratory reagent Co. Zinc acetate used for the preparation of nanoparticles ZnO and sodium hydroxide were purchased from Biotech laboratory chemicals company. Ethyl alcohol was purchased from ADWIC company. Dilute solutions of HNO3…

Fish’s consist of a diverse amount of species each known for their characteristics that set them apart from the rest. The characteristics that make the general understanding of a fish are, vertebrate, aquatic, Gills rather than lungs, paired limbs(fins) for locomotion, and are covered with scales. When we see fishes in aquariums we have an irresistible urge to tap the glass, and in doing so, a lot of the fishes get startled and move away performing a sequence of steps called an c-start used as…

p-nitro benzenediazonium chloride Para-red Procedure: Production of para-Nitrobenzenediazonium chloride: Prepare 7% NaNO2 by dissolving 7 g of NaNO2 in 100 mL water and in another flask, dissolve 0.4 g of sodium acetate in 3 mL of water. Keep these solutions in ice water bath. Place 0.7 g of p-nitroaniline…

triplicates for each extract. Four variables that could potentially affect the extraction efficiency were studied using the same procedure mentioned above. The experiments were carried out at three types of organic solvents for lipophilic fractions (ethyl acetate, hexane, 50% acetone in water) and four types of solvent for hydrophilic fractions (0.1M phosphate buffer pH7.4, acetone: water: acetic acid (70:29.5:0.5), 50% methanol in water, 7% acetic acid in 80% methanol). The amount between solid…

occurring the obstacle. For modified, we use the ultrasound bath to remove all of the possible gas that stay inside the liquid. Then, starting SFC to run the process and using the carbon dioxide as mobile phase and using the modifier as ethanol and ethyl acetate work in organic compounds. Experiments use three different of columns. Tests carried out using each column as a single stationary phase and using a sequential combination of two columns. Then, substance will come out to the detector…

herbomineral preparation [31].This lead to isolation of active compound swertiamarin from Enicostemma littorale Blume. 1.5.2 Swertiamarin an active lead isolated from Enicostemma littorale Blume The aqueous extract of E. littorale and its n-butanol and ethyl acetate fraction were reported to show potent anti-diabetic and lipid lowering effect [32]. Reports [17] suggested that the active compound(s) predicting these effects might be present in these fractions [32] and swertiamarin was one of the…

9.1 Catabolic pathways yield energy by oxidizing organic fuels Catabolic pathways and production of ATP Fermentation - occurs without O2, is partial degradation of sugars to release energy Aerobic respiration - uses O2 in breakdown of glucose (or other energy-rich organic compounds) to yield CO2 and H2O and release energy as ATP and heat Of some prokaryotes - doesn’t use O2 as a reactant but it 's a similar process Cellular respiration - usually used to refer to aerobic process Is…

important of the ketones. It is a colourless, mobile, flammableliquid with a mildly pungent and somewhat aromatic odour. It is miscible in all proportionswith water and with organic solvents such as ether, methanol, ethyl alcohol, and esters.Acetone is used as a solvent for cellulose acetate and nitrocellulose, as a carrier for acetyleneand as a raw material for the chemical synthesis of a wide range of products such as ketene,methyl methacrylate, bisphenol A, diacetone alcohol mesityl oxide,…

the fruits of V. macrocarpon, V. myrtillus and V. uliginosum (Table, figure, pp). 6.3.3. Powder behaviour of V. macrocarpon, V. myrtillus and V. uliginosum with different chemical reagents Powder behaviour is also an important tool for the determination of constituents in herbal drugs and it provides an idea about their chemical nature. The different colour changes observed in long, short UV and visible light after treatment of fruit powder of V. macrocarpon, V. myrtillus and V.…