Bleach

You may have heard of the word 'bleach' in a variety of contexts, but the one that I'm here today to inform you about is the chemical. As a chemical, bleach whitens or removes the colour from an object, usually through the process of oxidation. Usually, chlorine is the most basic compound of bleach. There are many types of "bleach". The most common, just referred to as bleach is sodium hypochlorite. Calcium hypochlorite is the most basic compound in bleaching power. Those that are not based on chlorine are generally based on peroxides. Bleaches are commonly used in a household setting to whiten clothes, remove stains, and disenfect things. However thye are also used in swimming pools, industrial process, removing mildew, and killing weeds. At first bleaching was accomplished by spreading an object in the sun where it would be naturally whitened. Modern bleach is traced back to 18th century scientists like Carl Wilhelm Scheele (discoverer of chlorine), Claude Berthollet, and Antoine Germain Labarraque. So there you go. There's enough information to start you out. Feel free to do any further research; I promise I won't stop you. The more you know.