Sodium Metabisulphite 100g

SKU: 5641

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Other names:

Sodium pyrosulfite, Sodium metabisulfite, SO2 58.5% min, Disodium disulphite

Sodium metabisulphite gr,

Sodium disulphite

Sodium pyrosulphite, Sodium disulfite

Appearance White crystalline powder with a sulfur smell  Uses As a preservative in developers  Used in place of sodium sulfite in some developers, particularly in two-solution formulas where the increased acidity of the metabisulfite inhibits oxidation. For acidifying fixing baths. 

Chemical Formula Na2O5S2  Notes Can be substituted weight for weight with sodium bisulfite

Picture is illustration only.


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