Caustic soda flake is a kind of strong corrosive chemicals, in the process of using, need to strictly abide by the safety operation procedures and precautions, to always be vigilant, do a good job of personal protection and emergency treatment. The following are some detailed notes on the use of caustic soda compiled by the caustic soda manufacturer:
　　I. Personal protection
　　Wear protective equipment: Before operation, you must wear chemical resistant clothing, protective glasses, rubber gloves and protective boots to ensure that the whole body without bare skin in direct contact with caustic soda. In addition, it is recommended to wear a special gas mask to prevent inhalation of its volatile harmful gases.
　　Avoiding direct contact: Caustic soda has a strong irritating and corrosive effect on the skin and eyes, so avoid direct contact with the eyes and skin in the process of use. If it is accidentally splashed on the skin or in the eyes, it should be immediately flushed with plenty of water and seek medical treatment in time.
　　Second, the operating environment
　　Well ventilated: the dissolution or use of caustic soda flake should be carried out in a well-ventilated area, avoiding operation in closed or semi-closed space to reduce the risk of harmful gas accumulation.
　　Anti-skid and corrosion-resistant: The floor should be paved with anti-skid and corrosion-resistant materials to prevent damage to the floor caused by spilled caustic soda solution and to reduce the risk of slipping.
　　Precautions for use
　　Correct measurement: Calculate the required dosage according to the actual need of caustic soda, and mix it with water strictly according to the proportion before the subsequent treatment process. Avoid the adverse consequences caused by overuse.
　　Avoid mixing: Caustic soda cannot be used after mixing with other substances, especially acidic substances, because mixing may lead to fire, explosion or release of toxic gas.
　　Preventing leakage: In the process of use, always pay attention to preventing the leakage of caustic soda flakes. Once leakage occurs, cut off the source of ignition immediately and take appropriate treatment measures, such as using a mixture of sand, dry lime or soda ash to collect the leakage and flushing the contaminated area with water until there is no residue.
　　IV. Storage and transportation
　　Storage requirements: Soda flakes should be stored in a dry, cool, well-ventilated special warehouse, away from fire, heat and flammable, explosive, corrosive substances. The storage container should be sealed and checked regularly for leakage. At the same time, obvious warning signs should be set.
　　Transportation requirements: In the process of transportation, special transportation tools and packaging containers should be used, and the relevant transportation regulations and operating procedures should be strictly observed.
　　V. Emergency Response
　　Personnel injury: For injured personnel, immediately flush the injured parts with large amounts of water and send them to the hospital for treatment.
　　Leakage treatment: When leakage occurs, the personnel in the leakage contaminated area should be quickly evacuated to the safety zone and isolated. At the same time, choose appropriate treatment methods according to the leakage situation, such as using sand, dry lime or soda ash mix to collect the leakage, and flush the contaminated area with water.
　　VI. Other Precautions
　　Avoiding heating: Soda flakes cannot be heated for use because heating will accelerate its chemical reaction and increase the danger.
　　Handling after use: After using caustic soda, clean and disinfect the instruments in time. It can be wiped with diluted water.