Sodium Metabisulfite (SMBS) 98% - Food Grade

Chemical Formula: Na2S2O5

CAS No. :7681-57-4

Quality Specifications

  • Sodium Pyrosulfite

    98 % min

  • Sulfur Dioxide (SO2)

    66 % min

  • Sodium Sulfite (Na2SO3)

    1 % max

  • Sodium Sulfate (Na2SO4)

    2 % max

  • Water

    0.01 % max

  • Iron (Fe)

    5 ppm max

  • Mercury (Hg)

    0.01 ppm max

  • Lead (Pb)

    0.5 ppm max

  • Zinc (Zn)

    0.5 ppm max

  • Arsenic (As)

    0.4 ppm max

  • Selenium (Se)

    10 ppm max

  • Chloride (Cl)

    50 ppm max

  • Heavy Metals (as Pb)

    10 ppm max

  • Thiosulfate

    0.03 % max

Physical Properties

  • Appearance

    White, compact grained powder with a weak odor of sulfur dioxide

  • Molecular Weight 

    190.1 g.mol-1

  • Bulk Density

    1,100 - 1,200 kg/m3 

  • pH (10% in water)

    4.0 - 4.5

Packaging

  • 25 kg (55 lbs) bags, 49 bags per pallet, 16 pallets/FCL

  • 1,000 kg (2,205 lbs) supersacks, 1 sack/pallet, 19 pallets/FCL

The information provided in this document is believed to be accurate and was obtained from sources believed to be reliable. However, the information is provided without any representation or warranty, expressed or implied, with respect to its accuracy or completeness. It is the users’ responsibility to determine the suitability of this product and relevance of this information for its use. Filo Chemical does not assume liability resulting from the use, handling, storage, and disposal of this product.