Sodium Metabisulfite AR, 500g

Molecular Formula: Na₂S₂O₅

Synonyms: • sodium pyrosulfite

CAS Number: 7681-57-4

Molecular Weight: 190.107 g/mol

Description:

Sodium Metabisulfite is a strong reducing agent in aqueous solution. It binds the oxygen dissolved in water, it is used to remove free residual chlorine in the water treatment industry to protect the membranes from oxidation. In Reverse Osmosis Systems. It is commonly used for the removal of free chlorine and as a biostatic. It reduces biological growth and keeps membrane performance characteristics during long-term storage, shipping or system shutdowns. In research, its reactivity with the carbonyl group to create a charged adduct makes it a good candidate for the purification/separation of aldehydes and ketones from mixtures. It is commonly used as an antimicrobial and antioxidant in winemaking.

Safety:

Sodium metabisulfite, despite not being flammable, decomposes in 150°C of heat releasing toxic gasses when decomposed. It is corrosive when dissolved in water.

Harmful if swallowed, it is corrosive to metals and should be stored safely.

Description of first aid measures

Move exposed individual to fresh air. Loosen clothing as necessary and position individual in a comfortable position.Seek medical advice if discomfort or irritation persists. If breathing difficult, give oxygen.

After skin contact: Take off contaminated clothing and shoes immediately.Wash affected area with soap and water. Seek medical attention if irritation, discomfort persist.

After eye contact: Protect unexposed eye. Rinse/flush exposed eye(s) gently using water for 15-20 minutes. Remove contact lens(es) if able to do so during rinsing. Immediately get medical assistance.

After swallowing: Rinse mouth thoroughly. Do not induce vomiting. Have exposed individual drink sips ofwater. Seek medical attention if irritation, discomfort or vomiting persists.