- | - | - | - | 50 | Fmoc-Gly-Phe-OMe‚ C27H26N2O5 | 0.46 | 458.52 | 0.001 | - | - | 1 M ethanolic sodium hydroxide | - | - | - | - | 5 | Acetic acid | 0.52 | 60.05 | 0.009 | 1.049 | 0.5 | Table of hazard assessment : Thionyl chloride‚ SOCl2 | * Reacts violently with water * Harmful by inhalation and if swallowed * Contacts with water liberates
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QUALITY CONTROL LABORATORY Mam Dawn Assay of HCL Aqueous Alkalimetry Direct titration 0.1N NaOH Methyl Red TS HCL + NaOH NaCl + H2O Assay of Diluted H3PO4 Aqueous Alkalimetry Direct titration 0.1N NaOH Thymolphthalein TS H3PO4 + 2NaOH Na2HPO4 + 2H2O Assay of H3BO3 Aqueous Alkalimetry Direct titration 0.1N NaOH Phenolphthalein TS H3BO3 H+ + BO2- + H2O
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Strong acids are very corrosive and cause severe skin burns‚ examples are hydrochloric acid‚ nitric acid‚ and sulfuric acid. Also called mineral or inorganic acids. (2) Weak acids are mildly corrosive and normally do not affect skin‚ examples are acetic acid (vinegar)‚ citric acid (citrus fruit juice acid)‚ and tartaric acid (used in making mayonnaise). Also called natural or organic acids. Ads by Google Facebook - Official Site Kumonekta sa Kaibigan‚ Kapamilya at Kaklase. Gumawa ng Profile
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Purpose of the Experiment: The intention of the experiment is to use solvent extraction methods to separate a mixture containing a carboxylic acid and a neutral compound. Once recovered‚ the solids were purified by recrystallization and examined by thin-layer chromatography‚ and their identities were derived by melting point and infrared (IR) spectroscopy. Extraction is a procedure that selectively dissolves one or more of the mixture compounds into a proper solvent. Extraction refers to
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The Formation Of Esters Aim: To observe the reactions between ethanoic acid and different alcohols in the preparation of a variety of esters. Apparatus: • Bottles containing: glacial Ethanoic acid‚ Methanol‚ Ethanol‚ Propan-1-ol‚ • Propan-2-ol‚ Butan-1-ol‚ Butan-2-ol and Conc. Sulfuric acid. • 1g Salicylic acid • 10 ml Measuring cylinder • Test tubes • 250ml Beaker • One-hole rubber stopper • 50cm length of glass tubing to fit stopper • Hotplate • Safety glasses Method: 1. Set up a 250ml beaker
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------------------------------------------------- Liquid–liquid extraction From Wikipedia‚ the free encyclopedia Liquid–liquid extraction also known as solvent extraction and partitioning‚ is a method to separate compounds based on their relative solubilities in two different immiscible liquids‚ usually water and an organic solvent. It is an extraction of a substance from one liquid into another liquid phase. Liquid–liquid extraction is a basic technique in chemical laboratories‚ where it is performed
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III.MATERIALS AND METHODS 3.1. Collection and confirmation of Vibrio parahaemolyticus isolate Vibrio parahaemolyticus isolate was obtained from Cochin University of Science and Technology (Dr. I.S. Bright Singh) and grown in 1.5% TSB with 2% NaCl. A loop of the enriched culture was streaked onto thiosulphate-citrate-bile salt sucrose agar used for the selective isolation of vibrio strains (TCBS agar ).After 18-24hr incubation at 370c the cultures giving pure green colonies were randomly selected
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CHEM 309: Integrated General‚ Organic‚ and Biological Chemistry: Spring 2011 Test # 3 You have 60 minutes to complete the exam – manage your time accordingly. An ambiguous or illegible answer is a wrong answer. Please read the directions carefully as most questions have several parts. Please do not begin until asked to do so. __________________ print your name here Pg # 3 (25 pts) Pg # 4 (21 pts) Pg # 5 (30 pts) Pg # 6 (24 pts) 1 2 1. (4) If 15.0 g of CaCl2 are present
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13. ORGANIC CHEMISTRY IV) ALKYNES SYNOPSIS Alkynes are commonly known as acetylenes. Acetylene is the simplest and important member of the alkyne series. • Alkynes contain – C ≡ C – • General molecular formula of alkynes is CnH2n–2 • Triple bonded carbons are ‘sp’ hybridized and greater s – character is associated with it. • Alkynes will exhibit chain‚ position and functional isomerism. • Their functional isomers are alkadienes and cyclo alkenes. • The minimum number of carbons required to exhibit
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* Ink Made from Tea bags * 1. Background of the Study Tea is created by using the leaves of a plantknown as Camellis sinensis. This plant is native tomainland China‚ South and Southeast Asia‚ but it istoday cultivated across the world in tropical andsubtropical regions. It is an evergreen shrub orsmall tree that is usually trimmed to below 2 m(6.6 ft) when cultivated for its leaves. It has astrong taproot. The flowers are yellow-white‚ 2.5-4cm (0.98-1.6 in) in diameter‚ with 7 to 8 petals.
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