SODIUM METABISULPHITE Food Grade
    Technical Data Sheet

Description & Application

Sodium Metabisulphite (Na₂S₂O₅) is a food additive can be used as: Bleach agent; Loose agent; Antiseptic and germicide; Inhibitor and freshen agent ;also as a mordant dyeing, fabric antichlor after bleaching, paper fiber bleaching agent, waste water treatment, tanning agent for leather, natural rubber coagulant, building material,etc.

Typical Properties

CAS NUMBER:                    7681-57-4

Chemical product:              Sodium Metabisulphite

Chemical Formula:              Na₂S₂O₅

Molecular Weight:              190.10

Assay as Na₂S₂O₅:                97.0%min.

Iron as Fe:                            20ppm max.

Arsenic as As:                       2ppm max.

Heavy metal as Pb：            10ppm max.

Water insoluble:                  0.05%max.

PH (1% solution,25℃):       4.0 –4.6

Appearance:                       White or slight yellowish crystalline powder

Packaging

Sodium Metabisulphite is supplied in 25kgs net kraft paper / plastic woven bag. Or in 550/600/1,100/1,200kgs jumbo bag.

Handling
User Exposure: Do not breathe dust. Avoid contact with eyes, skin, and clothing. Avoid prolonged or repeated exposure.

Storage

Suitable: Keep tightly closed.

Special requirements