Sodium Pyrosulfite (Sodium Metabisulfite)

Chemical Formula: Na₂S₂O₅ Appearance: White to yellowish powder Uses:

• Food Preservative: Used in dried fruits and wines (E223).
• Water Treatment: Removes chlorine and heavy metals.
• Industrial Applications: Used in leather tanning and photography.

Safety Precautions:

• Can release sulfur dioxide gas; use in well-ventilated areas.
• Store in a dry, cool place.