What do you want to know about bleaching?
Time for fun?
|What is a
bleach? Most of us would probably associate bleaches with our household bleaches, or the
action of chlorine gas on damped litmus paper. But in actual fact, these are but only two
types of bleaches. How does a
bleach work? What is the chemistry behind it?
Many a time, we use bleaches without realising it ourselves, be it to
beautify ourselves or to whiten our clothes.
This website is dedicated to enlightening the masses about bleaching and the chemistry behind it. Many a time, we use bleaches without even thinking. Be it to beautify ourselves or to whiten our clothes. Sometimes, we even use bleaches without even knowing that it is a bleach! What is defined as "Bleaching"? Bleaching is the process of whitening or removing the natural colour of textile fibres, yarns and fabrics and of wood pulp, paper and other products such as food stuffs, by the treatment of chemicals or by exposure to sun, heat or water. In laundry, bleaches help to remove stain. Bleaches are usually oxidising or reducing agents that change coloured substances to colourless ones. The most common oxidising agents are chloride compounds, hydrogen peroxide, sodium perborate, potassium manganate and ozone, whereas sulphur dioxide gas and sodium compounds are the more common reducing agents. In the bleaching of wood pulp, reducing agents are used. Usually oxidising bleaches produce more permanent whites than reducing agents.
This site is divided into various parts.
i) Types of bleaching:
For those who want to know bleaching on the whole, follow the guided tour made out especially for you.
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Last modified: 4/7/99