What is the Difference Between Chlorine and Sodium Hypochlorite?
🆚 Go to Comparative Table 🆚Chlorine and sodium hypochlorite are both chemical compounds containing the element chlorine, but they have different properties, structures, and uses. The main differences between chlorine and sodium hypochlorite are:
- State: Chlorine is a gas at room temperature, while sodium hypochlorite is a liquid. Chlorine has the chemical formula Cl2, whereas sodium hypochlorite has the formula NaClO.
- Strength: Chlorine is a stronger oxidizing agent compared to sodium hypochlorite. When applied, a higher amount of bleach (sodium hypochlorite) is needed to increase the chlorine level of water to the desired point.
- Composition: Sodium hypochlorite is composed of sodium, oxygen, and chlorine, and is commonly known as bleach. It is often used as a disinfectant or a bleaching agent.
- Applications: Chlorine is commonly used in the production of a wide range of consumer products, including plastics, solvents, and disinfectants. Sodium hypochlorite is a common liquid bleach and is also used as a disinfectant or a bleaching agent.
In summary, chlorine is a gas and a stronger oxidizing agent, while sodium hypochlorite is a liquid bleach with a lower chlorine content. Both compounds have distinct properties and applications, making them suitable for different purposes.
Comparative Table: Chlorine vs Sodium Hypochlorite
Here is a table comparing the differences between chlorine and sodium hypochlorite:
Property | Chlorine | Sodium Hypochlorite |
---|---|---|
Chemical Formula | Cl2 | NaOCl |
Description | Chlorine is an element on the periodic table and exists as a gaseous form. | Sodium hypochlorite, commonly known as bleach, is a solution made from reacting chlorine with a sodium hydroxide solution. |
Ionic Form | Cl- | ClO- |
pH Effect | Chlorine changes forms based on its pH, with hypochlorous acid (HOCl) and hypochlorite ions (OCl-) coexisting in a solution. | Sodium hypochlorite has a second-order decomposition rate, which means that reducing the concentration by half will reduce the decomposition rate factor by 5. |
Disinfection Effectiveness | Hypochlorous acid (HOCl) is 80 to 120 times more effective than sodium hypochlorite. | Sodium hypochlorite is a disinfectant and cleaning agent, but less effective than hypochlorous acid. |
Stability | Chlorine gas is unstable and reactive. | Sodium hypochlorite is chemically unstable and exists in an unhappy state, making it reactive. |
Chlorine gas is a very reactive and potentially dangerous chemical, while sodium hypochlorite, or bleach, is a solution made from reacting chlorine with a sodium hydroxide solution. The two compounds have different chemical properties and are used for different purposes, with sodium hypochlorite commonly used as a disinfectant and cleaning agent.
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