What is sodium bisulfite

Sodium bisulfite is in the form of white crystalline powder, and it tastes the same as sulfur dioxide. If it is exposed to the air, it will lose a lot of sulfur dioxide and will also oxidize to form sulfates. So you must not let your eyes come into contact with it in your life. If you accidentally take it, you should go to the hospital for treatment in time. So what is sodium bisulfite?

First, what is sodium bisulfite? White crystalline powder. There is a smell of sulfur dioxide. With unpleasant taste. Exposure to air loses some of its sulfur dioxide and is simultaneously oxidized to sulfates. It is soluble in 3.5 parts of cold water, 2 parts of boiling water, and about 70 parts of ethanol. Its aqueous solution is acidic. Melting point decomposition. Relative density: 1.48. Low toxicity, median lethal dose (rat, oral) 2000 mg/kg. Irritating. Commercial products often contain sodium metabisulfite (Na2S2O5) in various proportions.

Second, hazard category: low toxicity, median lethal dose (rat, oral) 2000 mg/kg. Health hazards: Irritating to skin, eyes, and respiratory tract, and may cause allergic reactions. Can cause corneal damage and lead to blindness. It can cause asthma; oral administration of large amounts can cause nausea, abdominal pain, diarrhea, circulatory failure, and central nervous system depression. Environmental hazards: Harmful to the environment and may cause water pollution. Explosion hazard: This product is non-flammable but corrosive and can cause burns to the human body. First aid measures Skin contact: Take off contaminated clothes immediately and rinse with plenty of running water. Seek medical attention. Eye contact: Immediately lift the eyelids and rinse thoroughly with plenty of running water or saline for at least 15 minutes. Seek medical attention. Inhalation: Move quickly away from the scene to fresh air. Keep the airways open. If breathing is difficult, give oxygen. If breathing stops, perform artificial respiration immediately. Seek medical attention. Ingestion: Drink plenty of warm water and induce vomiting. Seek medical attention.

Third, emergency response: isolate the leaked contaminated area and restrict entry and exit. It is recommended that emergency response personnel wear dust masks and acid-proof clothing. Avoid direct contact with leaking material. Small spill: Avoid creating dust, sweep up carefully and collect in a dry, clean container with a lid. Large leakage: Collect for recycling or transport to a waste disposal site for disposal.

What is sodium bisulfite? After understanding the above content, I believe everyone already knows the answer. When storing, please pay attention to store it in a cool, ventilated warehouse. Keep away from fire and heat sources. Protect from direct sunlight. The package is sealed. It should be stored separately from oxidants, acids and alkalis and should not be mixed. It should not be stored for a long time to avoid spoilage. The storage area should be equipped with suitable materials to contain leaks.