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What do you want to know about bleaching?
Time for fun?
References
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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:
ii)The chemistry behind bleaches
iii)The history of bleaches
iv)Types of bleaches
v)Fun with bleaches.
For those who want to know bleaching on the whole, follow the guided tour made out
especially for you.
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