History of Bleach

Updated on June 6, 2018

The dictionary definition of bleach is "the whiteness that results from removing colour from something." The process of bleaching is now extensively applied in science. It is a process that provides a handy solution to countless industrial activities.

We have already learned that bleaching is a process of whitening or divesting objects from their colours. Through the influence of light or sunlight and in the presence of oxygen and moisture, bleaching is a never-ending and continuous process found in nature.

This process constitutes as an essential part of treating several articles and commodities in the initial stages. The art of bleaching is typically focused on certain articles, such as textile products. Cotton, linen, silk, wool and other textile fibres are bleached for whitening as an essential step. It is also applied to paper pulp, beeswax and some oils, and other substances, besides wheat flour, petroleum products, oils, fats, straw, hair, feathers and wood.

Bleaching is a rather old process. Prehistoric human beings were also familiar with the effect of sun on various substances. In fact, even in primitive times, we can find examples of items being exposed to sunlight for purposes of bleaching. Some of these civilisations were based in Egypt, China, Asia and Europe.

The oldest traces can be found in the Egyptian civilisation (around 5000BC). Thus, Egyptians were thought to be experts when it came to applying the whitening power of the sun to bleach objects. They used to discolour their linens by exposing their clothes to sunlight.

Bleach was discovered even before the third millennium BC. The people of that time had adequate knowledge about a solution that could be developed from wood ashes, which, after mixing with water, turned into lye (a substance that is obtained by leaching or removing soluble or other components by percolating a liquid). They knew that the resultant liquid would lighten colours.

They also knew that steeping or soaking things in lye would whiten linen to the extent that if it was allowed to remain dipped for a long period of time, it would completely disintegrate linen. The whitening process with this lye method is a bit tricky. Additionally, it is cumbersome because it consumes several hours. Furthermore, it warrants extra care as it is pretty strong.

The Dutch are attributed for the modification they brought about in this sphere in the 11th and 12th century AD. During this time, they emerged as experts on the science of laundering in the entire European community. To soften the harsh effects, they seasoned lye with sour milk. They never let anybody know about their secret and, as a result, the process remained a mystery for many years.

Till the mid-18th century, the Dutch dominated and maintained their supremacy in the bleaching trade. Thus, all brown linen, manufactured at the time principally in Scotland, was shipped to Holland for the purpose of bleaching.

The entire course of action, from its despatch to return was a long process - it took about seven to eight months. To achieve the results identical to that obtained by using lye, they would soak and sun-dry the linen many times. The cumbersome aspect of this was that lye needed up to eight weeks, not to mention the space needed for drying the fabric out in the sun.

Harlem, a city in western Netherlands, an industrial city best known as a flower-growing centre and distribution point for bulbs, especially tulips, was the hub of the bleaching process at the time. Linen was usually soaked in waste lye for almost a week as the first measure; boiling hot potash lye would usually be poured over that in next stage. Afterwards, the cloth was usually drawn out, washed and later on placed on wooden containers, filled with buttermilk. In the vessels, the cloth was allowed to remain dipped for about five to six days. Finally, the cloth was spread on grass, probably in a tenterhook arrangement. During the entire summer, the cloth usually remained exposed to sunshine, while being moist.

This entire course consisted of bucking (steeping or soaking in alkaline lye) and crafting (bleaching on the grass), needed to be repeated alternately five to six times to achieve the required level of whiteness.

In the 16th century, scientists fancied a new chemical to replace sour milk. John Roebuck, in 1746, began using diluted acid instead of sour milk. He used diluted sulphuric acid in place of sour milk. This was a great improvement which resulted in the application of sulphuric acid in the bleaching process owing to which the entire procedure required only 24 hours and often not more than 12 hours. Usually when sour milk was used, six weeks, or even two months, were required, depending on the weather. Consequently, the practice of bleaching was curtailed from eight months to four, which made the trading of linen quite profitable.

In 1774, Swedish chemist Karl Wilhelm Scheele (who is credited with the discovery of oxygen) discovered the chlorine which is a highly irritating, green-yellowish gas and belongs to the to the halogen family. Scheele found that chlorine had the ability to destroy vegetable colours. This discovery motivated French scientist Claude Berthollet to fancy its utility in the bleaching process in 1785.

In experiments carried out during the initial stages, the person involved in it was required to produce chlorine himself. The stuff needed to be bleached was either exposed to the gas in a chamber or steeped in an aqueous solution. Keeping in view the olfactory effects of chlorine and the health risks it posed, this exercise was met with failure in the beginning.

In 1792, in the town of Gavel (in Paris), eau de Gavel (water of Gavel) was produced by combining potash solution (one part) with water (eight parts). However, the greatest momentum to bleaching industry was provided when, in 1799, a chloride of lime was introduced by Charles Tennant from Glasgow, the substance we now know as bleaching powder.

Peroxide bleach was discovered in the middle of last century. Although it takes away stains, it lacks the ability to bleach most coloured fabrics. It is considered to be more user-friendly, as they do not cause weakening of the cloth. It also don't disinfect and can be safely added in laundry detergents. Another distinct feature is that it has a longer shelf life as compared to other types of bleaches It has more popular in Europe where washing machines are produced with inner heating coils which can increase the water temperature right up to boiling point.

Chlorine bleach has disinfecting qualities and is a powerful germicide. It is useful in disinfecting water, especially in areas where contamination is rampant. In New York City's Croton Reservoir, it was initially used to disinfect drinking water in 1895. In recent times, community health activists have promoted bleach as a low-cost method of disinfecting the needles of intravenous drug users.


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    • profile image


      14 months ago

      I think you made a mistake " It also don't disinfect and can be safely added in laundry detergents." Hydrogen peroxide is used as a disinfectant.

    • profile image


      19 months ago

      I read this out of curiosity because I was reading about what God required the Hebrews to do if something had mildew on it. If it was spreading mildew, it had to be burned. I know that bleach will kill mildew and was curious if they could have produced bleach back then. Sounds like it would have been a very long process to have done then so burning was probably the fastest way to keep the mildew from spreading. I was a painting contractor and when encountering mildew I would use a bleach and water solution to get rid of it before painting. If you paint over mildew it will just bleed through unless you kill it with bleach or some other chemical. Very informative article. Thanks for writing it.

    • profile image


      23 months ago

      Wow! Informative for such a short article. Exactly what I was looking for the evolution with dates and locations. Even descriptive ingredients and methods used at that time frame.

    • profile image

      Wonder Ladybug 

      2 years ago

      I think this was really helpful when i used a summary out of this i had got a 100. My teacher was so proud of me also i was the only one who trumed in a report on bleach. They also had some instering facts. When my teavher read this she was so proud her head was about to blow of the top of her head she was so amxed about what I talked about in my summary. Not to mention butI kind of used a few.senteves out of the information that was given on bleach. Some sentences that i wantef to use I used them in my very on sentence. If you are looking at my comment right now you should read the information thatis given on bleach if you havn't already havan't read it. If you have to do a report on bleach you do you a short/or long summary out of this information. If you have a teacher thatalways want his/her work done right and not baby work I think this the information that you need right now because you will make a good grade on your work only of you give a good and noce neat work and no no baby mess tjat you have to do. So all I am saying is this was instering information on bleach.

    • profile image


      7 years ago

      I am doing a project on bleach

    • boundarybathrooms profile image

      Thomas Mulrooney 

      7 years ago from Burnley, Lancashire, UK

      Who would have thought that a HubPage about the history of bleach could actually be interesting? Well, you managed it!

      Thanks for the interesting read :-)

    • profile image


      7 years ago

      Came here out of personal interest as to the history of bleach. Really liked this!

    • profile image

      Annie D. 

      7 years ago

      thanks! Very informative.

    • profile image


      7 years ago

      im doing a science fair on bleach exposure to oxygen affecting is bleaching properties.

    • profile image


      7 years ago

      i am doing a project on bleach

    • profile image


      7 years ago

      hi, im doing a project on bleach ( chemical) but my profeeser wants me to present the bleach made by the french, but i cant seem to find anything to do with project!

      please help me with more info!


    • profile image

      David Eggers 

      8 years ago

      Bleach is still sold in the US because people there have the common sense not to drink it.

    • profile image

      9 years ago

      Needed to know the history of bleach....thanxs for the info.....very informative.

    • profile image


      9 years ago

      im doing my science fair on bleach sorry if i splet things wrong and thank you for helping me this really help me a lot and u did said a lot of things that i needed help on so thank u so much!!!!!!!!!!!!!!!!!!!! PS: T

    • profile image


      9 years ago

      im doing a project on bleach and ur article was very usful thanks

    • profile image

      9 years ago

      good article. needed to find out if bleach had ammonia in it as i use it to clean up cat accidents and ammonia is bad as it encourages more "accidents"! Thanks for the good information.

    • profile image


      9 years ago

      Thank you so much. Very informative and well written. Always good to read something from someone this well educated!

    • profile image


      9 years ago

      Bleach is sold in Western Europe

    • profile image

      Detox Homes 

      10 years ago

      That's because we have not known about the dangers associated with it. And also because it is a rather quick and convienent product. There are now many in the population that are begining to become more informed!

    • profile image

      mike hart 

      10 years ago

      bleach is a caustic chemical and banned in western europe. Why is it still used so widely in the U.S.?

    • Eileen Hughes profile image

      Eileen Hughes 

      10 years ago from Northam Western Australia

      Really interesting and informative. Its amazing how they worked on the fabrics way back in history. I use bleach a lot around the home for disinfecting the yard after dogs piddle and put a tiny bit in the birds water to keep it cleaner. Less algae.

      Thanks for that. It was great.


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