Harmful improper cleaning is irritating and corrosive to some extent. Sodium hydroxide itself is an alkaline cleaner, which can be used to clean articles, but it is not recommended to clean tableware.
Tableware, as a food container, has a close relationship with human body. When cleaning, the skin will inevitably come into contact with caustic soda, which is strongly irritating and corrosive. Its dust or smoke will irritate eyes and respiratory tract, corrode nasal septum, and direct contact between skin and eyes and NaOH will cause burns, which can cause digestive tract burns by mistake.
As a detergent, caustic soda is mainly used for: 1. Detergent: Sodium hydroxide is used to produce various detergents. Even today's washing powder (sodium dodecyl benzene sulfonate and other components) is made of a large amount of caustic soda to neutralize the excess fuming sulfuric acid after sulfonation.
2. Soap: Making soap is the oldest and most extensive use of caustic soda. Sodium hydroxide has been used in traditional daily life. Until today, the demand for caustic soda from soap, soap and other washing products still accounts for about 15% of caustic soda.