The word "bleach" originates from the Old English term "blēcan," which means "to make white or pale." This term is believed to be derived from the Proto-Germanic root "blaikjaną," which also means "to make white."
The term "bleach" has several meanings:
The earliest known use of bleach as a whitening agent dates back to ancient times. Egyptians and Babylonians used sunlight and natural bleaching agents, such as sodium carbonate and urine, to whiten fabrics.
In the 17th century, the Dutch chemist Jan de Dom developed a process for bleaching fabrics using chlorine gas. This process, known as "chlorine bleaching," became widely adopted and revolutionized the textile industry.
In the 19th century, sodium hypochlorite (NaClO) was discovered as a more stable and effective bleaching agent than chlorine gas. Sodium hypochlorite is the main active ingredient in many modern bleach products.
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