manual enrollment into a computerized system. The School was conceptualized by the Division of City Schools of Cabanatuan through the leadership of the late Cabanatuan City Mayor Honorato C. Perez‚ Sr. and during the stint of then superintendent Dr. Ester C. Baylon founded the Cabanatuan City Science High School on April 19‚ 1985 by virtue of MECSRO Permit 06‚ s. 1985‚ which was approved by MECSRO III Director Pura Tumada-Liban. Mayor Perez and his son‚ Atty. Angelo Perez were both influential on establishing
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Mathematics and Chemistry have sharpened my methodical thinking and logical problem solving skills. Laboratory work in Chemistry has always been exciting to me from a young age. From learning about wet tests to practical work such as the hydrolysis of an ester‚ my passion for the subject in its entirety has increased. This was observed and acknowledged by taking many years of chemistry throughout high school. My immediate goal after obtaining my bachelors degree is to get my masters. With a masters degree
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and pharmaceutical industries. The authors presumed that engineering genes in sink organs of plants presenting high amounts of lycopene could be an alternative to the natural occurring Bixin‚ which would be advantageous in the market. Bixin is an ester largely used as a color additive since long time ago. The plant Bixa Orellana produces the compound‚ but due to the high value of Bixin in the market‚ some scientists are studying a way to synthesize the
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Acetyl chloride‚ CH3COCl‚ also known as ethanoyl chloride or acyl chloride‚ is an acid chloride derived from acetic acid. It belongs to the class of organic compounds called acyl halides. It is a colorless liquid. Acetyl chloride does not exist in nature‚ because contact with water would hydrolyze it into acetic acid and hydrogen chloride. In fact‚ if handled in open air it gives off white smoke owing to the hydrolysis from the moisture in the air. The "smoke" is actually small droplets of hydrochloric
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Science degree is from the University of Pittsburgh. As my resume indicates‚ I have a great deal of laboratory experience in Chemistry and Biology‚ both indoors and in the field. The Chemistry laboratory techniques I conducted included: preparation of esters and synthesis of various polymers and distillations. I am also familiar with HPLC testing and QC procedures. In my time with Ferro Corporation I was the QC chemist for a multimillion dollars customer. I was responsible for the production
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commercially with different K values. The K-value is an indication of the mean molecular weight which ranges from 2 to 3KDa for PVP-K12 and from 1000 to 1500KDa for PVP-K90 .It is Soluble in water and in polar solvents. Its insoluble in ethers‚ ketones‚ esters and hydrocarbons. Its glass transition temperature varries between 130-176ºC depending on the molecular weight (80). The water-soluble grades of polyvinylpyrrolidone are obtained by free-radical polymerization of vinylpyrrolidone in
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Another word for "fats." Lipids can be more formally defined as substances such as a fat‚ oil or wax that dissolves in alcohol but not in water. Lipids contain carbon‚ hydrogen and oxygen but have far less oxygen proportionally than carbohydrates. They are found in places as diverse as egg yolks and the human nervous system and are important component of plant‚ animal and microbial membranes A fatty or waxy are organic compound that is readily soluble in nonpolar solvent (e.g. ether)
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be made by hydrolysing methyl 2-hydroxybenzoate. Oil of wintergreen is 98% methyl 2-hydroxybenzoate and is what I used as my starting chemical. The structure of methyl-2-hydroxybenzoate is shown on the right‚ and is an ester as it has the functional group –COO-. Hydrolysing esters involves splitting them into carboxylic acids or their salts and alcohols by adding water‚ dilute acid or dilute alkali. To hydrolysed my oil of wintergreen I first reacted it with a weak alkali‚ aqueous sodium hydroxide
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P H A R M A C EU TIC A L S O LU TIO N S PA R T I Pharmaceutical Technology II PHAR 2332 LEARN IN G O BJECTIVES At the end of the lecture‚ the students should be able to; 1. Define pharmaceutical solutions. 2. Discuss the advantages & drawbacks of pharmaceutical solutions as dosage form. 3. Explain the formulation components in pharmaceutical solutions. 4. Describe types of pharmaceutical solutions. Solutions are: Dosage forms prepared by dissolving the active ingredient(s) in an aqueous or
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Methylparaben is a member of the paraben family‚ a group of compounds that possess antibacterial and antifungal properties. These agents are esters of para-hydroxybenzoic acid‚ which is why they are collectively called parabens. However‚ in contrast to its cousins‚ ethylparaben‚ butylparaben‚ and propylparaben‚ methylparaben receives its specific name owing to the fact that its chemical structure contains the methyl alkyl group. Methylparaben is found in several fruits‚ in particular blueberries
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