CLUSTER 02 · FOOD & FEEDLIVE
Sodium Metabisulfite
Food / wine · E223
At a glance
CAS7681-57-4
E-NUMBERE223
EINECS231-673-0
HS / TARIC2832 10 00
REACHRegistered · full registration on file
PACK FORMAT25 kg PE-lined paper bags · 500 kg big-bags
What it does
Sodium metabisulfite (E223) — the workhorse SO₂-releasing preservative and antioxidant. Inhibits oxidation, bacteria and wild yeasts in winemaking and brewing; also used for water treatment and as a reducing agent.
Typical applications
- Winemaking (must protection, racking, bottling)
- Brewing (sterilisation, antioxidant)
- Food preservation (dried fruit, juices, shellfish)
- Water treatment (dechlorination)
- Photographic and textile reducing agent
Specification band
Assay (Na₂S₂O₅)≥ 97.0%
Active SO₂ content≥ 65%
Iron (Fe)≤ 10 ppm
Heavy metals (as Pb)≤ 10 ppm
Arsenic≤ 3 ppm
Selenium≤ 10 ppm
Industry-typical published bands. Producer-specific values on the COA issued per shipment.
Handling & packaging
- Releases SO₂ in contact with moisture or acid — ventilate storage area
- Hygroscopic · keep sealed
- Shelf life 12 months in sealed packaging
- Not classified as hazardous for transport (UN exempt at standard pack sizes)
Documents on file per shipment
Per-batch COA with assay and active SO₂SDS in EU CLP formatFood-grade / oenological grade declaration (Reg. EC 231/2012)Halal · Kosher · GMO-free statements on request
Serica execution notes
- Active SO₂ verified per batch — the value that actually matters to a winemaker.
- Oenological-grade COA mapped to OIV (International Organisation of Vine and Wine) reference criteria where requested.
- DDP to gate · documentation pack delivered before the container arrives.
Regulatory references
Pricing, MOQs, lead-times and producer identities are quoted per buyer.