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Water chlorination is the process of adding chlorine or chlorine compounds such as sodium hypochlorite to water. This method is used to kill bacteria, viruses and other microbes in water. In particular, chlorination is used to prevent the spread of waterborne diseases such as cholera, dysentery, and typhoid. [1] [2] [3]
The product of the process, sodium hypochlorite, provides 0.7% to 1% chlorine. Anything below the concentration of 1% chlorine is considered a non-hazardous chemical [according to whom?] although still a very effective disinfectant. The sodium hypochlorite produced is in the range of pH 6-7.5, relatively neutral in regards to acidity or baseness.
As a common disinfectant, elemental chlorine and chlorine-generating compounds are used more directly in swimming pools to keep them sanitary. Elemental chlorine at high concentration is extremely dangerous, and poisonous to most living organisms. As a chemical warfare agent, chlorine was first used in World War I as a poison gas weapon.
With the world's annual celebration of his birth mere weeks away, it turns out one of the most revered figures who ever walked the Earth likely didn't look like the pictures of him.
The chloralkali process has been in use since the 19th century and is a primary industry in the United States, Western Europe, and Japan. [4] [5] It has become the principal source of chlorine during the 20th century. [6]
Chlorine can be manufactured by the electrolysis of a sodium chloride solution , which is known as the Chloralkali process. The production of chlorine results in the co-products caustic soda (sodium hydroxide, NaOH) and hydrogen gas (H 2). These two products, as well as chlorine itself, are highly reactive.
Nativity scenes around the world have added a new accessory this Christmas season: the keffiyeh. In a controversial take on the classic holiday display, some churches are replacing the baby Jesus ...
The issue of salt losing its flavour is somewhat problematic. Salt itself, sodium chloride (NaCl), is extremely stable and cannot lose its flavour.France notes that Jesus was giving a lesson in moral philosophy and "not teaching chemistry"; to him, whether or not the proverbial image is factually accurate is of little relevance to the actual message of this verse. [31]