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  • Changsha Weichuang Chemical co.,ltd

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sodium sulfite anhydrous

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  • Basic Info
  • Company Profile

Product Description

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    1.Sodium Sulfite

    CAS: 7757-83-7

    EINECS: 231-821-4



    APPEARANCE: Off-white crystals or powder.

    PURITY: 93%,96%,97%


    Sodium Sulfite is a reducing agent soluble in water. Its solution in water is basic. It is feeble soluble in liquid chlorine or ammonia.



    Norms (industrial grade)




    Na2SO3 -content % ≥




    Fe-content % ≤




    Water-insoluble matter content % ≤




    Free alkali as Nacontent % ≤




    Na2SO4 -content % ≤


    NaCL-content % ≤



    1> In Photography- In formulation of developers and fixers solutions.

    2>In Water Treatment -Oxygen scavenger in Boiler water and drilling water.

    3> In Effluent water-treatment of excess chlorine & detoxification of chromic acid in electro plating industries.

    4>In Pulp & Paper-In processing of semi-chemical pulp production in chemi-thermo-mechanical and kraft pulping process.

    5> In Chemical industry-in manufacture of Sodium thiosulphate , sulphonating agent

    6> In Detergents- manufacture of sulfosuccinates – sampoo.

    7>In Dyetuffs-reducing agent in manufacure of indigo - vat dyes

    8> In Rubber-stabilizing latex. – anticogulant.

    9>In Minerals-Ore floatation aid.

    10>In Leather industry-antibacterial in tanning process.

    11>In Food processing-as preservative, antioxidant and enzyme inhibator.


    1> We can make the shipping mark according to your requirement.

    2> We can supply the package of 25 Kg /50kg compound plastic woven bag with inner Polypropylene liner.

    3> We can supply the package of JUMBO Bag.

    4> The general package is three layer, which can protect the goods very well.

    6.Storage & handling

    1> Store the product in a cool and dry place.

    2> Prevent from direct sunlight,water and moisture.

    3> Avoid contact with strong acid,oxidants or poisonous substances.

    4> Exposure to moisture will make it oxidze easily to sodium sulphate.

    5> Do not store it for long time.

    7.Shelf Life:

    one year

    8.package photos

    images (6).jpg images (17).jpg images (3).jpg

    9.About our company

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  • Changsha Weichuang Chemical Co., Ltd.

    Changsha Weichuang Chemical Co., Ltd. was founded in the year of 2000, and our head office and development department are all in Changsha. Our company consists of two plants: No. 1 chemical plant and No. 2 chemical plant, occupying 28,000 square meters, with fixed assets of RMB12 million.

    The locations of our plants are closely connected with Jing-Guang Railroad and Jing-Zhu Highway, only one hour's drive to Xinggang Port of Changsha and ten hours' drive to Huangpu Port of Guangzhou, with convenient transportation.

    We have 110 employees and are a professional producer of sodium with imported raw materials. Our main products are sodium metabisulphite (8000mt/year), sodium thiosulpha (6000mt/year), sodium sulphate (5000mt/year) and ferrous sulfate (10,000mt/year).

    Equipped with modern technology and accurate testing facilities, our company is being successfully managed by excellent personnel who know business management science. Our stable and reliable products have obtained ISO9001:2000 quality system authentication and we are also equipped with the most modern environment protecting system.

    Our first goal is exporting and the second one is domestic marketing. Our company sells products to over ten countries and regions, like the USA, Europe, Canada, Japan and South Korea, enjoying great prestige both at home and abroad. Our company has established long, friendly and stable business relations with consumers.

    All the staff members in our company welcome friends from at home and abroad to visit our company. We guarantee that we will meet your needs with excellent products, first-class services and most competitive prices. Honest cooperation and mutual benefit create a bright future.

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Basic Information

  • Food & Beverage-Please select-Please select
  • Food Additives
  • 2000-09-29
  • Manufacture
  • Our main products are sodium metabisulphite (8000mt/year), sodium thiosulpha (6000mt/year), sodium sulphate (5000mt/year) and ferrous sulfate (10,000mt/year).
  • North America,South America,Eastern Europe
  • North America,South America,Eastern Europe,Southeast Asia,Africa,Mid East,Western Europe
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