Elaborado por: Eduardo Richmond‚ abril 2009 Ventajas y desventajas del aceite de pescado como Triglicérido y Etil Ester Reseña Desde que el mercado de los Omega‐3 de aceite de pescado entró en la vida del consumidor‚ ha existido gran controversia sobre cuál es la forma química más beneficiosa para el organismo‚ si en forma de triglicérido o en forma de etil ester. A pesar de que ambas formas químicas han demostrado ser bastante beneficiosas para la salud‚ existe todavía
Premium Vida
roxatidine acetate hydrochloride with cyclomaltoheptaose (b-cyclodextrin) using IR and NMR spectroscopy Arti Maheshwari a‚⇑‚ Manisha Sharma a‚ Deepak Sharma b a b Department of Chemistry‚ IET‚ Mangalayatan University‚ Beswan‚ Aligarh‚ India Department of Physics‚ IET‚ Mangalayatan University‚ Beswan‚ Aligarh‚ India a r t i c l e i n f o a b s t r a c t NMR chemical shift changes of the cyclomaltoheptaose (b-cyclodextrin‚ b-CD) cavity protons as well as roxatidine acetate hydrochloride
Premium Nuclear magnetic resonance
distillation techniques: simple and fractional. Simple distillation was done to separate ethyl acetate—which has a usual boiling point of 77º—from a less volatile component‚ while fractional distillation was done to distinguish an ethyl acetate/n-butyl acetate mixture‚ which has boiling points of 77º and 125 º‚ respectively. Results and Discussion As previously stated the standard boiling point for ethyl acetate is 77º. The data obtained resulted with the experimental boiling point being approximately
Premium Distillation Boiling point Water
being that Silica gel in TLC 2 was polar and the solvent ethyl acetate-hexane is non-polar it moved relatively with the solvent. The stationary phase in TLC 3‚ alumina is non polar and the solvent ethyl acetate is polar so from the ideal that polar does not attract non-polar benzophenone stick stronger to alumina non-polar rather than moving up with polar solvent ethyl acetate as it did in tlc2. 6. Ethyl acetate is polar and Ethyl acetate- hexane is nonpolar‚ use of polarity differences. Because
Premium Oxygen Solvent Acid
dissolves like”‚ fluorene dissolves with the non-polar heptane and the polar fluorenone dissolves in the polar ethyl acetate solvent. This phenomenon was illustrated in class before the experiment‚ when it was pointed out why water will not dissolve fluorene‚ fluorenone‚ or transstilbene as readily as a nonpolar solvent such as heptane or toluene‚ or a polar eluent such as ethyl acetate. Those solvents have a much more similar structure to the solutes‚ whereas water’s structure is much different
Premium Oxygen Chemistry Distillation
Oxidation of an Alcohol: Oxidizing Methoxybenzyl Alcohol to Methoxybenzaldehyde Using Phase-Transfer Catalysis PURPOSE OF THE EXPERIMENT Oxidize methoxybenzyl alcohol to methoxybenzaldehyde‚ using sodium hypochlorite as the oxidizing agent and tetrabutylammonium hydrogen sulfate as the phase-transfer catalyst. Monitor the progress of the reaction by thin-layer chromatography. BACKGROUND REQUIRED You should be familiar with extraction‚ evaporation‚ and thin-layer chromatography techniques
Premium Alcohol Oxidizing agent Electrochemistry
ABSTRACT Purpose: To evaluate the antifungal and cytotoxicity activity of four medicinal plants like Mystroxylon aethiopicum‚ Lonchocarpus capassa‚ Albizia anthelmentica and Myrica salicifolia. Methods: Microdilution method and brine shrimp lethality test were employed to evaluate antifungal and cytotoxicity of plant extracts. Results: Lonchocarpus capassa leaf extracts exhibited antifungal activity against tested fungal strains with MIC range of 0.78 – 3.125 mg/mL with LCLA extract inhibiting C
Premium Bacteria Microbiology Antibiotic resistance
will used to hold this extraction and 5 mL of ethyl acetate will be passed through SPE column‚ to obtain and remove the caffeine from the SPE column. A small one-armed Erlenmeyer flask containing 5 mL of ethyl acetate along with the compound caffeine‚ should be the result after using the SPE column
Premium Caffeine Tea Water
CHEM 3152-003 Experiment 2: Fractional Distillation and Gas Chromatography Introduction: The purpose of this experiment was to separate a mixture of ethyl acetate (EtOAc) and toluene by using the method of fractional distillation and to analyze the fractions using gas chromatography (GC). ethyl acetate toluene Distillation is a method known as separating or purifying a liquid or mixture by vaporization and condensation. In a simple distillation‚ the liquids being separated boil below 150 0C
Premium Distillation Chromatography Gas chromatography
|[pic] | | | | |UNIVERSITI TEKNOLOGI MARA | | | |FAKULTI KEJURUTERAAN KIMA | | | |CHEMICAL ENGINEERING LABORATORY III | | | |(CHE575)
Premium Chemical reaction Reaction rate