0
the year 1774
Chlorine was observed for the first time by Jan Baptist van Helmont near 1630 (in Holland) and prepared for the first time in laboratory by Carl Wilhelm Scheele in 1774 (in Sweden), but considered it to be a compound of oxygen.
Sir Humphry Davy (in England) named it after identifying chlorine as a chemical element in 1810.
What else can I help you with?
What is chlorines mass number?
Chlorine's mass number is 35.5. This is an average value due to the presence of two isotopes of chlorine, chlorine-35 and chlorine-37, in nature.
What is free chlorine in a pool?
Free Chlorine is the Chlorine which is free to do its work in the pool, as opposed to Combined Chlorine which is chlorine that has combined with contaminants and is tied up and ineffective as a sanitizer in the pool. Sometimes you will see it abbreviated as FAC, which stands for Free Available Chlorine.
What do you do when your total chlorine is high and your free chlorine is low?
Total Chlorine = Free Chlorine + Combined Chlorineor, put another wayTotal Chlorine - Free Chlorine = Combined ChlorineFree Chlorine is the chlorine that is doing its job.Combined Chlorine is the chlorine that has combined with contaminants such as nitrogen. It is ineffective as a sanitizer and it is noxious.Total Chlorine is the total of these two levels.To eliminate the Combined Chlorine (making all the chlorine in the pool Free Chlorine) you must shock the pool to remove the contaminants. You must reach "Breakpoint Chlorination", which is the addition of chlorine to your pool equivalent to the Combined Chlorine level times 10.example:Total Chlorine = 1.5ppmFree Chlorine = 1.0ppmSo, the Combined Chlorine (the difference between the two tests) is .5ppmBreakpoint chlorination, in this example would be .5ppm X 10 = 5ppm. So, in this example, you would add enough chlorine to your pool to raise the chlorine level up by 5 parts per million.
What is the name of the covalent compound ClF3?
ClF5 Is the formula for Chlorine pentaflouride.
How do you get high free chlorine to match total chlorine?
Total Chlorine = Free Chlorine + Combined Chlorineor, put another wayTotal Chlorine - Free Chlorine = Combined ChlorineFree Chlorine is the chlorine that is doing its job.Combined Chlorine is the chlorine that has combined with contaminants such as nitrogen. It is ineffective as a sanitizer and it is noxious.Total Chlorine is the total of these two levels.To eliminate the Combined Chlorine (making all the chlorine in the pool Free Chlorine) you must shock the pool to remove the contaminants. You must reach "Breakpoint Chlorination", which is the addition of chlorine to your pool equivalent to the Combined Chlorine level times 10.example:Total Chlorine = 1.5ppmFree Chlorine = 1.0ppmSo, the Combined Chlorine (the difference between the two tests) is .5ppmBreakpoint chlorination, in this example would be .5ppm X 10 = 5ppm. So, in this example, you would add enough chlorine to your pool to raise the chlorine level up by 5 parts per million.
Why was chlorine gas invented?
Chlorine gas was not invented; it occurs naturally in small amounts. However, it gained notoriety during World War I when it was weaponized for chemical warfare due to its toxic properties and ability to cause respiratory distress and death in high concentrations.
How was the chlorine invented?
Chlorine was discovered in 1774 by Carl Wilhelm Scheele, a Swedish chemist. He produced the element by reacting hydrochloric acid with manganese dioxide. Later, in 1810, Sir Humphry Davy named the element "chlorine."
What was invented in WWI?
Chlorine gas, machine guns, tanks, and planes were used for war.
What would happen if chlorine was not invented?
If chlorine was not invented, water would not be able to be effectively disinfected, leading to increased levels of waterborne diseases and illness. Additionally, the use of chlorine as a bleaching agent in the production of paper, textiles, and other products would have to be replaced with alternative chemicals or processes.
What country invented the tank zeppelins and chlorine poison gas?
tank, UKzeppelin, Germanychlorine, Germany
In what war was chlorine gas first used as a weapon?
Invented by French chemist Claude Berthollet, chlorine gas was first used as a weapon by the military during the first World War in 1914. Chlorine gas was first used as a disarming weapon, and later as a fatal poison.
Chlorine was discovered in?
Chlorine gas was first observed by a Belgian chemist, Jan Baptist van Helmont, in about the year 1630, but the Swedish chemist Carl Wilhelm Scheele is credited with isolating Chlorine as an element in 1774, although he didn't recognize it as an element. That realization came in the early 1800's. Chlorine gas was first used as a weapon on April 22, 1915, at the Battle of Ypres. For more information, look up "Chlorine" on Wikipedia.
What element's atomic mass is 35.453?
The element with an atomic mass of 35.453 is chlorine. It is a halogen and has the atomic number 17.
How many chlorine has isotopes?
Chlorine has a lot of different isotopes but the 2 stable ones are chlorine 35 and chlorine 37
What atoms are in chlorine?
Chlorine (Cl) atoms make up the element chlorine.
What halogen is in table salt?
Chlorine
Is there chlorine in chlorine dioxide?
Chlorine dioxide is a different chemical compound from chlorine. While they both contain the element chlorine, there is no chlorine in the form of Cl2 in chlorine dioxide. Chlorine dioxide (ClO2) is a strong oxidizing agent used for water treatment and disinfection.
