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Food & Beverage

Sodium Metabisulphite

Also known as SMBS, E223, sodium pyrosulphite

Preservative, antioxidant and dechlorinating agent for beverages, food processing and reverse osmosis plant.

  • SKUNSC-SMBS-FG
  • CAS number7681-57-4
  • GradeFood
  • Puritymin. 97%
  • FormPowder
  • AppearanceWhite crystalline powder with a sulphurous odour
  • OriginImported
Warning Not regulated for transport
  • H302 Harmful if swallowed
  • H318 Causes serious eye damage
  • EUH031 Contact with acids liberates toxic gas

The safety data sheet for this product is supplied with every consignment and is available on request — ask us for a copy.

Pack size
$11.00 per bag In stock
  • Nationwide delivery, or collect from our Harare depot
  • Safety data sheet supplied with every consignment
  • Technical support on application and handling

Two quite different jobs from one product: preserving food against oxidation and browning, and stripping residual chlorine ahead of RO membranes.

Specification for Sodium Metabisulphite
Assay (Na2S2O5) min. 97%
SO2 content min. 65%
Iron max. 10 ppm
Standard FCC / E223
Standard packaging25 kg bag
HS code2832.10
EC number231-673-0
  • Wine, juice and dried fruit preservation
  • Dechlorination ahead of RO membranes
  • Oxygen scavenging in boiler feedwater
  • Bleaching agent in textiles
  • Photographic fixing baths

Releases sulphur dioxide on contact with acid and slowly in damp air — store dry and well ventilated, away from acids. May trigger reactions in sulphite-sensitive people.

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