Our objective to study the saponification reaction for preparation of soap the theory soaps and detergents are essential to personal and public health.
After the preparation of soap in these experiment part a,will followed by the part bthis procedure was conducted to compare the soap properties with the synthetic detergent by observing the precipitation and emulsification that occurs for this process, we are using the soap produced in the first procedure in part a.
The alkali used in modern soap is either potassium hydroxide, which is used to make soft soap or liquid soap because of its greater solubility, or sodium hydroxide, which is used to make bar soap the common term for the alkali became simply lye, which curiously is not short for alkali, but originated in the anglo-saxon language. Organic chemistry lab experiment 4 preparation and properties of soap introduction a soap is the sodium or potassium salt of a long-chain fatty acid.
Soap can be prepared by a process known as specification historically, soaps were made by boiling the fat of animal, lye and in a aqueous noah and koch solution containing potash of course, this was done long time ago before anyone had any idea of understanding the chemical transformations. Properties of a soap emulsifying properties 1 shake 5 drops of mineral oil in a test tube containing 5 ml of water a temporary emulsion of tiny oil droplets in water will be formed 2 repeat the same test, but this time add a small piece of the soap you have prepared before shaking allow both solutions to stand for a short time 3.
Preparation and properties of soap experiment #7 objective: to prepare soap by alkaline hydrolysis (saponification) of natural fats and test some of the chemical properties and cleansing power of soap relative to detergent introduction. Experiment 2: preparation and properties of soap objectives: 1) to prepare a sample of soap from olive oil and to examine its properties 2) to study the saponification reaction for preparation of soap 3) to understand the cleaning mechanism of a soap introduction: soaps are carboxylate salts (sodium or potassium) with very long hydrocarbon chains.
Experiment 3: preparation and properties of soap objectives: i) to be able to prepare a soap starting with olive oil and animal lard ii) to examine the chemical properties of the soap that is made iii) to determine the theoretical yield and experimental yield of soap introduction: a soap is a salt of a fatty acid. Conclusion : in conclusion, the soap is successfully prepared and the comparison properties of soap, which are precipitation are made, observed and recorded it can be concluded soap is also a good cleaning agent but decrease in effectiveness as it used in hard water.
Preparation of soap by walter scharf and charles malerich natural sciences/chemistry baruch college new york, ny 10010 introduction soap, from a chemical standpoint, is a salt (or a mixture of salts) of fatty acids. Preparation and properties of soap materials and apparatus: olive oil, 95% ethanol, beaker, 50% sodium hydroxide solution, boucher alter, hot plate, salt solution, magnetic stirrer, filter funnel, glass rod, filter paper, weighing balance, watch glass and measuring cylinder. A major drawback associated with the use of soap is the soap scum that can form in hard water calcium, iron, and magnesium ions are abundant in hard water these ions form an insoluble precipitate with soap a second disadvantage is that, in acidic solution, soap is converted to free fatty acids and therefore loses its cleansing action.
The powerpoint ppt presentation: preparation and properties of soap is the property of its rightful owner do you have powerpoint slides to share if so, share your ppt presentation slides online with powershowcom.