Caustic soda (sodium hydroxide, NaOH) is a strong base. It's a highly corrosive substance used in many industrial processes, such as:
* Soap making: It reacts with fats and oils to produce soap.
* Paper manufacturing: It's used to dissolve lignin in wood pulp.
* Chemical production: It's a key ingredient in many chemical reactions.
Washing soda (sodium carbonate, Na2CO3) is a weaker base than caustic soda. It's commonly used as a cleaning agent, particularly for laundry:
* Cleaning agent: It softens water and helps remove dirt and stains.
* Dishwashing: It can be used as a dishwasher detergent.
* Water softening: It removes calcium and magnesium ions from water.
In summary:
* Caustic soda (NaOH) is a strong base used in industrial processes and is corrosive.
* Washing soda (Na2CO3) is a weaker base used as a cleaning agent.
