WebStearic acid for synthesis. CAS 57-11-4, EC Number 200-313-4, chemical formula CH₃ (CH₂)₁₆COOH. Stearic acid MSDS (material safety data sheet) or SDS, CoA and CoQ, dossiers, brochures and other available documents. CAS #: 57-11-4 EC Number: 200-313-4 Molar Mass: 284.48 g/mol Chemical Formula: CH₃ (CH₂)₁₆COOH Hill Formula ... Stearic acid is more abundant in animal fat (up to 30%) than in vegetable fat (typically <5%). The important exceptions are the foods cocoa butter (34%) and shea butter, where the stearic acid content (as a triglyceride) is 28–45%. In terms of its biosynthesis, stearic acid is produced from carbohydrates via the fatty acid synthesis machinery wherein acetyl-CoA contributes two-carbon building blocks.
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Web(10) To the same stearic acid mixture you just measured, add an additional 1 g of the same unidentified fatty acid as in step 8. (11) Repeat steps 5 through 7 again. DATA TREATMENT AND CALCULATIONS In order to determine the value of T f you will need to determine the freezing point of the pure stearic acid and the stearic acid solutions. Web1 dec. 2007 · The solubility of stearic acid in ethanol, methanol, ethyl acetate, and acetone has been measured gravimetrically at various temperatures ranging from 301 to 313 K at atmospheric condition. The... short tapered bob
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WebThe paraffin wax melting point is 47 ° C-64 ° C. Paraffin is a mixture of hydrocarbons, so it does not have a strict paraffin wax melting point like pure compounds. The so-called paraffin wax melting point refers to the temperature of the first stagnation period on the cooling curve when the melted paraffin sample is cooled under specified ... WebRecord the temperature in degrees Celsius. 5. Heat the water until the stearic acid is completely melted. 6. When the stearic acid has completely melted, turn off the hot plate. 7. Record the temperature of the stearic acid every 30 seconds until it freezes (solidifies). Results 1. Record your results in a table. 2. WebFrom these set of calculations for Trial 2, the freezing point of the stearic acid is 68.8°C. To calculate the freezing point of the pure stearic acid, the average of the two trials was calculated. short tapered asian men haircut