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Sodium metabisulfite, also known as sodium pyrosulfite or SMB, is an inorganic compound with the chemical formula Na2S2O5. It is a white crystalline solid with a sulfurous odor. It is a versatile compound with a wide range of applications in various industries.
Physical and Chemical Properties
Chemical Properties
Sodium metabisulfite is a strong reducing agent and a sulfite donor. It can react with various substances, including:
Applications
Sodium metabisulfite has a wide range of applications in various industries, including:
Safety
Sodium metabisulfite is an irritant to the skin, eyes, and respiratory tract. It should be handled with care and appropriate personal protective equipment should be used. Inhaling high concentrations of sodium metabisulfite can cause respiratory problems, including coughing, wheezing, and shortness of breath.
Storage
Sodium metabisulfite should be stored in a cool, dry, and well-ventilated place. It should be kept away from heat, moisture, and incompatible materials.
Conclusion
Sodium metabisulfite is a versatile and important compound with a wide range of applications in various industries. It is a valuable tool for preserving food, processing textiles, developing photographs, and treating water. However, it is important to handle sodium metabisulfite with care and follow safety precautions to avoid potential health hazards.
Data sheet