Caustic soda is extremely corrosive, and its solution or dust splashed on the skin, especially the mucous membrane, can produce soft scabs and can penetrate deep tissues. There is a scar after the burn. Splashing into the eye will not only damage the cornea, but also damage the deep tissues of the eye. If it accidentally splashes on the skin, rinse it with water for 10 minutes; if it splashes into the eyes, rinse it with water or saline for 15 minutes, and then inject 2% novocaine. Severe cases were rushed to hospital for treatment. The maximum allowable concentration of caustic soda dust in the air is 0.5mg/m3. Operators must wear work clothes, masks, protective glasses, rubber gloves, rubber aprons, long rubber boots and other labor protection supplies when working. A neutral and hydrophobic ointment should be applied to the skin. The production workshop should be well ventilated.

Caustic soda is generally used in a 25kg three-layer plastic woven bag, the inner and outer layers are plastic woven bags, and the middle layer is a plastic inner film bag. Flake caustic soda is classified as the 8.2 alkaline corrosive product by the “Classification and Marking of Commonly Used Hazardous Chemicals (GB13690-92)”, which belongs to the eighth level of dangerous goods, and the dangerous code: 1823. It should be stored in a ventilated and dry warehouse or shed. The packaging container must be complete and sealed. Do not store or transport with flammable materials and acids. Pay attention to moisture and rain during transportation. In the event of a fire, water, sand, and various fire extinguishers can be used to put out the fire, but firefighters should pay attention to the corrosiveness of caustic soda in water.

When preserving caustic soda, it should be sealed tightly to prevent exposure to the air to absorb moisture or deliquescence or carbon dioxide. When using glass bottles to contain caustic soda or other forms of sodium hydroxide, glass stoppers should not be used, and rubber stoppers should be used instead, because sodium hydroxide will react with the silica in the glass to form sodium silicate, causing the stopper to interact with The bottle body is not easy to open due to adhesion.

Caustic soda is widely used in the national economy, and many industrial sectors require caustic soda. The sector that uses the most caustic soda is the manufacture of chemicals, followed by papermaking, aluminum smelting, tungsten smelting, rayon, artificial cotton and soap manufacturing. In addition, in the production of dyes, plastics, pharmaceuticals and organic intermediates, the regeneration of old rubber, the electrolysis of sodium metal and water, and the production of inorganic salts, the production of borax, chromium salts, manganese salts, phosphates, etc., must also be used A lot of caustic soda.