(08) 6270 4500

Safety Data Sheets / AGent Industrial

Sodium Metabisulphite

Na₂S₂O₅

Signal wordDangerTransportNot dangerous goodsPoisons scheduleS5SDS version2026.01 · June 2026

Hazards

Corrosive pictogram
Corrosive
Harmful or irritant pictogram
Harmful or irritant
  • H302Harmful if swallowed.
  • H318Causes serious eye damage.
Full GHS classification
  • Acute Toxicity (Oral) Category 4 — H302
  • Serious Eye Damage/Eye Irritation Category 1 — H318

Poisons schedule

Schedule 5 (S5) — SUSMP

Used for

Antioxidant; food additive (preservative); reducing agent; whitening agent; chlorine neutraliser.

Never

Do NOT combine with other chemicals or products unless specified by the manufacturer. Avoid contact with acids (liberates toxic sulphur dioxide).

Handling

Appearance
Solid — white crystalline powder
pH
4 – 5 (aqueous solution)
Keep away from
Acids (liberate sulphur dioxide); oxidising agents; water (slow decomposition); aluminium / galvanised metals. See Section 10.

Also known as

Sodium metabisulfite; sodium pyrosulphite; sodium disulphite; SMBS; birlasulf

Summary only. The PDF is the Safety Data Sheet: read it before handling, storing or disposing of this product, and keep it with the product.