OOPS
1 month since I last wrote the last blog that is really bad... Anyway, here I am back again. Well, after the trauma of failing first driving test and how things could've been so different from the warm up I guess life still has to go on....
Well, I don't like to cry over spoilt milk. Here's sth for everyone who has been using soap... The article is about 'antibacterial' soap and 75% of liquid soap in American shelves display that on their labels. However, that doesn't mean we are actually cleaner than ever! Soap is made by combining an acid and a base. The acid is fat ( fatty acids and triglycerides) and base is soldium hydrochloridethe mixture causes the fatty acids to separate from the triglycerides and fuse with hydroxide ions. Soap's function is to decrease water's surface tension and to bind to dirt, oil and bacteria. This could be done because one part of soap molecule is water-binding and the other is water repellent.
" The hydrophilic part allows the hydrophobic fatty acids to come into contact with other hydrophobic substances, such as the dirt on the surface that is being cleaned. When the grime adheres to the soap's fatty acids, it becomes encapsulated in droplets of water."
So how does antibacterial soap get rid of more? Well, th pts to consider are: antibacterial componenets of soap need to be left on the surface for 2 minutes or more in order to work.Bacteria may develop a resistance to bactericidal agents over time. Some bacteria are actually beneficial. Normal bacteria eat our sweat and may help us defend against truly harmful bacteria. Some diseases are viral and so antibacterial soap also not effect..
Hey, the best way is just to use ordinary soap and wash hand thoroughly with warm water
0 Comments:
Post a Comment
<< Home