Anhydrous Sodium Sulfite Na2so3 Food Grade and Industrial Grade/Sodium Sulphite
Best price Sodium Sulfite Anhydrous
CAS no.: 7757-83-7
EINECS no: 231-821-4
Appearance: White crytal powder
Sodium Sulfite (Sodium Sulphite) is white gravel or powder crystal,relative density is 1.561, less to dissolve in water and its water solution has alkaline reaction.
Sodium Sulfite is hard to dissolve in ethanol.
Sodium Sulfite for Industry Grade and Food Grade
|Industry Grade||Food Grade|
|Purity ( As Na2SO3)||96.0% min||98.0% min|
|Sodium sulphate ( SO4)||2.0% max||1.0% max|
|Chlorides ( As NaCL)||0.5% max||0.1% max|
|Arsenic ( As )||-||0.0002% max|
|Heavy metals ( As Pb )||-||0.0005% max|
|Iron (Fe)||0.005% max||0.002% max|
|Water insolubles||0.05% max||0.02% max|
(1) Industry Grade : Used in Dyeing and printing Industry ,as dechlorinating agent and bleaching agent, in leather and tanning industry as bleaching agent , developer agent , reductant agent , stabilizer agent , or used in papermaking, electronic and water treatment industry.
(2) Food Grade: In food industry as additive (E223) preservative, antioxidant and antimicrobic for fruits (dried, glazed and candled), vegetables (onions, potatoes, etc.), juices (citrus and grapes) and fish (shrimps and prawns). In silage treatment as antifermentative. In starch and sweeteners production as bacteriostatic.
(3) Photo Grade: In the photographic industry as component of developer bath .
(4) Pharmaceutical Grade : pharmaceutical industry for the production of chloroform, benzene and formaldehyde phenylpropanoid Sulfone
Packaging & Shipping
Sodium sulfite is packed in net weight 25kg plstic woven bag with plastic inner bag.
Sodium sulfite should be stored in a dry and cool place.