Chemistry Project to Compare the Foaming Capacity of Soaps
Foaming Capacities of Soaps
To compare the foaming capacities of five different commercial soaps.
5 test tubes, 5 conical flasks (100 ml), test tube stand, Bunsen burner and stop watch.
5 different samples of soap and distilled water.
- The foaming capacity of a soap sample depends upon the nature of soap and its concentration.
- This can be compared for various samples of soaps by taking the same concentration of solution and shaking them.
- The foam is formed and the time taken for disappearances of foam in all cases is compared.
- The lesser the time taken by a solution for the disappearance of foam, the lower is its foaming capacity.
|Five conical flasks (100 ml each) are taken and numbered 1 to 5.|
|In each of these flasks equal amounts (say 5 gm) of the given samples of soap|
|shavings or granules are taken and 50 ml of distilled water is added.|
|Each conical flask is heated few minutes to dissolve all the soap completely.|
|In a test-tube stand, five big clean and dry test tubes are taken and numbered 1 to|
|One ml of the five soap solution is then poured in the test tubes of corresponding|
|10 ml. of distilled water is then added to each test tube.|
|Test tube no 1 is then shaken vigorously 5 times.|
|The foam would be formed in the empty space above the container.|
|Stop watch is started immediately and the time taken for the disappearance of|
|foam is noted.|
|Similarly the other test tubes are shaken vigorously for equal number of times (i.e.,|
|5 times) with approximately with the same force and the time taken for the|
|disappearance of foam in each case is recorded.|
|•||The lesser the time taken for the disappearance of foam, the lower is the foaming|
|Tabulations of the result are given below:|
Amount of each soap sample taken = 5 gm Amount of distilled water taken = 50 ml. Volume of each soap solution taken = 1 ml. Volume of distilled water added = 10 ml.
|S. No.||Name of the Soap||Soap Sample Time taken for the disappearance of form (in secs)|
The foaming capacities and hence the washing action of different soap samples are in the order :