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  • Sodium Sulfite Anhydrous - China

    price: contact company for price

    1.Purity:96, 98%

    2.CAS no.:7757-83-7

    3.MF:Na2SO3

    4.White crytal powder Sodium Sulfite

    2.Speicificaion

    Specification for Industry Grade and Food Grade :

    Item Quality Index

    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

    3.Usage

    (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

    4.Storage

    Sodium sulfite should be stored in a dry and cool place.

    5.Package

    Sodium sulfite is packed in net weight 25kg plstic woven bag

    with plastic inner bag.

    25tons/20'FCL.


    Company Contact:


    • Phone: 0086073128813797

    • Address: NO.102,People North Road,Shifeng District,Zhuzhou , Zhuzhou, China

    • Email: Email


    Published date: September 24, 2013 -

    • Business Description: Rongda Chemical Co.,Ltd is an export oriented enterprise specialized in

      producing and marketing zinc based chemical material. Our head company

      is Zhuzhou Mingqi Chemical Co.,Ltd .which was established in 2007,famous

      by the great performance and reputation in domestic chemical market.

      Actually we are biggest distributor for sodium sulfite in China. Rongda

      was built mainly for our export sales.

      Rongda has it s own invested and cooperative facilities,and also represent some other renowned suppliers in China.

      The main products with yearly production capacity as below:

      1) Sodium sulfite anhydrous Capacity: 50,000metric tons

      2) Zinc sulphate Capacity: 30,000metric tons

      3) Zinc oxide Capacity: 30,000metric tons

      4) Rongalite Capacity: 20,000metric tons

      5) Sodium metabisulphite Capacity: 50,000metric tons

      6) Caustic soda flakes Capacity: 50,000 metric tons

      Rongda is also dedicated to source and supply other quality chemicals to meet customer s needs.

      Rongda is still young,but we will try the best to be your reliable source of chemicals from China.

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