Sodium Metabisulfite 500g

Description

Sodium metabisulfite has many major and niche uses.  It is widely used for preserving food and beverages.  Also known as E223, Sodium pyrosulfite or Sodium disulfite. Sodium Metabisulfite has a diverse range of uses:

• Sodium metabisulphite combined with sodium hydrosulfite is an excellent rust-stain remover.
• It is used in photography as an antioxidant in photographic film development.
• Concentrated sodium metabisulfite can be used to remove tree stumps. Some brands contain 98% sodium metabisulfite, and cause degradation of lignin in the stumps, facilitating removal.
• Sodium metabisulphite solution is commonly used as an antimicrobial and antioxidant in winemaking; bottled wine indicates its use with the label "Contains Sulfites" in the US.
• Sodium metabisulphite is used as an SO2 source (mixed with air or oxygen) for the destruction of cyanide in commercial gold cyanidation processes.
• Sodium metabisulphite is used as an SO2 source (mixed with air or oxygen) for the precipitation of elemental gold in chloroauric (aqua regia) solutions.
• Sodium metabisulphite is used in the water treatment industry to quench residual chlorine.
• Sodium metabisulphite is used for preserving fruit.