The company which has been certified by SGS and ISO9001, is a leading professional manufacturer & exporter of sodium metabisulphite, supply sodium metabisulfite food grade, sodium metabisulphite tech grade in high quality at competitive price.
Uses: Mainly used as bleaching agent for processing leathers, fabric and organic matter, medium colouring agent for printing and dyeing; Germicide and antiseptic for food preserving, brewing and beverage. Also used as auxiliary material for synthetic dyes, perfume and photographic fixing agent, etc.
Property: White or crystal powder.
Spec:
Item |
Index |
Sodium Metabisulphite (Na 2 S 2 O 5 ) (%) |
97% Min |
Iron Content (Fe) (%) |
0.005%Max |
Water-insoluble (%) |
0.05%Max |
pH value |
4.0~4.6 |
Heavy Metal (as Pb) (%) |
0.0005%Max |
As (%) |
0.0001%Max |