CAS No. 7681-57-4 97% Food Grade Preservative Sodium Metabisulfite
|Min. Order (Tons)||FOB Price|
|10+||US $385 / Ton|
Sodium Metabisulfite (SMBS)
is mainly used as reduction agent. Furthermore, sodium metabisulfite is ideal for the bleaching of vegetable fibers and textile, for the production of solutions, which are used in the developing of photos and films as well as for the treatment of tanning agents in dyeing of textiles. ChoiceChem offers different grades' sodium metabisulfite, all meeting highest quality standards.
1. Chemical Analysis
Iron content(base on Fe)
water insoluble matter
Arsenic content(base on As)
1 ppm max.
10 ppm max.
White or yellowish crystalline powder
Food Grade: GB 1893-2008
Industrial Grade: HG/T2826-1997
Eliminating dissolved oxygen in waste water and in pipes;
Cleaning water pipes and reverse osmosis membranes in desalinization equipment as it is an antibacterial.
Sodium metabisulfite is used in water treatment plants to remove excess chlorine.
Sodium metabisulfite's functions as a bleaching agent, which is useful in making paper pulp, cotton and wool.
Sodium metabisulfite is commonly used as a food preservative for dried foods, as well as fruit concentrate juices.
Sodium metabisulfite acts as an antimicrobial, inhibiting the growth of fungi and bacteria, thereby keeping food fresh and safe.
In beer and wine manufacturing, sodium metabisulfite is used as both a sterilizer and an antioxidant in the process of brewing beer or fermenting wine.
Sodium metabisulfite is an antioxidant additive in inject able medicines and is also used as a reducing agent in pharmaceuticals.
Photographic and film industry
For preparing developer solutions, for acidifying fixing baths (photo grade).
Sodium metabisulfite used in landscape gardening as a tree stump remover, as it disintegrates the lignin -- chemicals in plant cell walls -- in the tree stumps, making them easier to remove.
In the sulphitisation of tanning extract.
For bleaching ground wood, as an antichlor.
3. Transportation Information:
Not a DOT controlled material
4. Storage & Handing
Keep locked up.
Do not ingest.
Do not breathe dust.
Avoid contact with skin.
Wear suitable protective clothing.
In case of insufficient ventilation, wear suitable respiratory equipment.
If ingested, seek medical advice immediately and show the container or the labels.
Keep away from incompatibles such as oxidizing agents, acids.
Not allowed in room with any oxidant or strong acid, and keep away from an oxidation by air or humidity.
Sodium Metabisulphite should NOT store for long time. DO NOT mix with inflammable substances, gasoline and oxidants.
During transportation, keep away from direct sunlight and humidity.
In net 25kg / 1000kg / 1100kg / 1200kg / 1250kg pp bags
Packing with pallets ( per customer's requirements )