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Extracting fats

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Introduction Fats are isolated from plants and animals. The properties such as solubility relate to their chemical structures. Fats are heated with a strong base to convert them into soaps. The fat you use to make soap reacts with potassium hydroxide to produce a potassium soap, the potassium salt of the fatty acid. One typical animal fat, sterol, reacts with KOH to form potassium stearate, soap. Most naturally occurring fats produce a mixture of different salts of fatty acids when they are converted to soap. Both potassium and sodium soaps dissolve in water and are effective as cleaning agents. Each has a polar end to the molecule identified by the negative charge and an end that is primarily carbon and hydrogen. ...read more.


Safety This experiment was overall a safe one but as like other experiments we have to take safety precautions. There was sodium hydroxide which was corrosive so we wore goggles and made sure the skin did not come in contact with sodium hydroxide. Equipment Beaker sodium hydroxide spatula sodium chloride perfume litmus paper groundnut oil sunflower oil olive oil corn oil Results Oil PH meter Universal indicator PH Description Groundnut oil 9.9 Blue Very foamy, looks like potato mash. Sunflower oil 13 Dark blue White, thick, and soft Olive oil 11 Blue Spits a lot, yellow, grainy Corn oil 14 Dark purple White, hard, grainy Results analysis Looking at the results all the soaps was alkaline. ...read more.


My second problem was estimating the amount of time to leave the soap to dry. At the end I estimated 5 minutes. We took PH results. If I was to do this experiment again I would use different oils to see if I can get one to produce a neutral soap. To make this a FAIR TEST I made sure I put the same amount of oil in each beaker. I also made sure I added the same amount of sodium chloride in each solution. Vocational implications Similarities * Both industries and schools would scent the mixture. * Both industries and schools would take safety precautions. * Both industries and schools would take PH to see if the soap is legit. Differences * Industries would use other methods for more accurate measure. * Industries would use crude oil. * Industries would use more scented solutions. ...read more.

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