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Home > Inorganic Chemistry > Inorganic Salts > Sodium pyrosulfite for Sale > Sodium Metabisulfite Powder Na2S2O5 Sodium Pyrosulphite Sodium Metabisulfite in Water Treatment 98% White crystal or powder Industry Grade
Sodium Metabisulfite Powder Na2S2O5 Sodium Pyrosulphite Sodium Metabisulfite in Water Treatment 98% White crystal or powder Industry Grade buy - large image1
Sodium Metabisulfite Powder Na2S2O5 Sodium Pyrosulphite Sodium Metabisulfite in Water Treatment 98% White crystal or powder Industry Grade buy - image1
Sodium Metabisulfite Powder Na2S2O5 Sodium Pyrosulphite Sodium Metabisulfite in Water Treatment 98% White crystal or powder Industry Grade buy - image2
Sodium Metabisulfite Powder Na2S2O5 Sodium Pyrosulphite Sodium Metabisulfite in Water Treatment 98% White crystal or powder Industry Grade buy - image3

Sodium Metabisulfite Powder Na2S2O5 Sodium Pyrosulphite Sodium Metabisulfite in Water Treatment 98% White crystal or powder Industry Grade

109 Inquiries

Unit Price: Get Latest Price
CAS No.:

7681-57-4

Grade:

Industrial Grade

Content:

98%

Port:

Shanghai,Tianjin,qingdao

Packaging:

25Kg / 50Kg / 200Kg / 1000 Kg or as your request

Price valid (until):

2023-10-31

Company Type:
Trader
Location:
China
Qualification:
Main Products:

Oxalic Acid,Trisodium Phosphate,ammonium bicarbonate,Cocoa Powder,Trichloroisocyanuric Acid,Sodium Percarbonate

  • Product Description

  • Seller Information

  • Inquiry History

  • Description


      Certificate of Analysis    


      

          ITEM

    SPECIFICATION

    TEST RESULT

    Na2S2O5 content  :

    97.0 %min

    97.23%

    Heavy metals (as Pb) :

    0.0005%max

    0.0004%

    Arsenic (As) :

    0.0001%max

    0.0001%

    Iron (Fe) :

    0.0030%max

    0.0021%

    Water insoluble  :

    0.02%max

    0.01%

    PH Value :

    4.0-4.8

    4.6



      Product Detail  


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     Sodium metabisulfite (Na2S2O5) is used as a food preservative, antioxidant and disinfectant. It preserves freshness, inhibits the growth of bacteria and yeast, and prevents oxidation in food production, including wine, beer, and dried fruit. It prevents fruit and vegetables from browning and helps preserve the color and texture of cans. It acts as a disinfectant in water treatment. However, it may cause an allergic reaction in some people, especially those with asthma or sulfite allergies. Checking food labels for sulfites and seeking professional guidance is important for safe use.


      Packaging&Shipping 


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    APPLICATIONS  


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    Sodium metabisulfite has various applications in different industries. Some of the common applications of sodium metabisulfite include:

    1. Food Industry: Sodium metabisulfite is used as a food preservative and antioxidant. It helps to prevent the growth of bacteria and fungi, thus extending the shelf life of food products such as dried fruits, wines, and processed meats.

    2. Water Treatment: Sodium metabisulfite is used in water treatment processes to remove chlorine and chloramine from tap water. It acts as a reducing agent, neutralizing the disinfectant properties of chlorine and making the water safe for consumption.

    3. Photography: Sodium metabisulfite is used in developing solutions for photographic films and papers. It acts as a reducing agent, helping to stabilize and fix the images by removing the unexposed silver halides.

    4. Textile Industry: Sodium metabisulfite is used as a bleaching agent and reducing agent in the textile industry. It helps to remove stains and brighten the colors of fabrics.

    5. Pharmaceutical Industry: Sodium metabisulfite is used as an antioxidant and preservative in pharmaceutical formulations. It helps to prevent the degradation of drugs and increase their shelf life.

    6. Pulp and Paper Industry: Sodium metabisulfite is used in the pulp and paper industry as a bleaching agent and dechlorinator. It helps to remove residual chlorine from the pulp and improve the brightness of the paper.

    7. Mining Industry: Sodium metabisulfite is used as a flotation agent in the mining industry. It helps to separate valuable minerals from the ore by selectively binding to them and making them float while leaving the waste materials behind.

    8. Chemical Industry: Sodium metabisulfite is used as a reducing agent and antioxidant in various chemical reactions. It is used in the production of dyes, pharmaceuticals, and other chemical compounds. 

    Basic Info
    Product Name:

    Sodium pyrosulfite

    Other Name:

    Disulfurous acid,sodium salt (1:2);Pyrosulfurous acid,disodium salt;Disulfurous acid,disodium salt;Sodium pyrosulfite (Na2S2O5);Sodium pyrosulfite;Sodium metabisulfite;Sodium metabisulfite (Na2S2O5);Disodium pyrosulfite;Fertisilo;Disodium disulfite;Sodium disulfite (Na2S2O5);Disodium metabisulfite;Disodium pyrosulfite (Na2S2O5);Campden Tablets;Colorstrip Catalyst 100;E 223;Sobis;Sobisu;Sodium sulfur oxide (Na2S2O5);NSC 158277;NSC 227243;15771-29-6;1287784-10-4;2242622-57-5

    CAS No.:

    7681-57-4

    Molecular Formula:

    H2O5S2.2Na

    InChIKeys:

    InChIKey=ZBVPOSMABOMSMZ-UHFFFAOYSA-N

    Molecular Weight:

    190.095

    Exact Mass:

    189.898254

    EC Number:

    231-673-0

    UNII:

    4VON5FNS3C

    ICSC Number:

    1461

    UN Number:

    1759

    DSSTox ID:

    DTXSID0029684

    Color/Form:

    White hexagonal crystals or powder|White to yellowish crystals or powder.|Colorless crystals|White granular or powdered salt

    HScode:

    2832100000

    Categories:

    Inorganic Salts

    Characteristics
    PSA:

    125

    XLogP3:

    -3.7

    Appearance:

    White to slightly yellow Powder/Solid

    Density:

    1.4 g/cm3

    Melting Point:

    150 °C (decomp)

    Boiling Point:

    Decomposes

    Water Solubility:

    H2O: 540 g/L (20 ºC)

    Storage Conditions:

    Storage containers are predominantly made from 1.4571 grade stainless steel. Fiberglass-reinforced plastic containers are also suitable for storage. Paper or plastic sacks, steel barrels, or big bags made of synthetic fibers are used for transportation.

    Toxicity:

    LD50 orally in Rabbit: 1540 mg/kg LD50 dermal Rat > 2000 mg/kg

    Flammability characteristics:

    Noncombustible Solid

    Odor:

    In the presences of traces of water, it develops an odor of sulfur dioxide

    PH:

    4,0-5,5 (10 % aqueous solution)

    Experimental Properties:

    ... in moist air it decomposes with loss of part of its SO2 content and by oxidation to sodium sulfate ... Dry sodium metabilsulfite is more stable to oxidation than dry sodium sulfite|Slowly oxidized to the sulfate on exposure to air and moisture

    Air and Water Reactions:

    Acts as a corrosive acid when mixed with water. Reacts slowly with air and water.

    Reactive Group:

    Sulfite and Thiosulfate Salts

    Reactivity Alerts:

    Strong Reducing Agent

    Reactivity Profile:

    SODIUM METABISULFITE is incompatible with the following: Heat (decomposes) [Note: Slowly oxidized to the sulfate on exposure to air & moisture.] (NIOSH, 2016).

    Flammable Limits:

    Noncombustible Solid

    Hazard Identification

    Classification of the substance or mixture

    Acute toxicity - Category 4, Oral

    Serious eye damage, Category 1

    GHS label elements, including precautionary statements

    Pictogram(s)
    Signal word

    Danger

    Hazard statement(s)

    H302 Harmful if swallowed

    H318 Causes serious eye damage

    Precautionary statement(s)
    Prevention

    P264 Wash ... thoroughly after handling.

    P270 Do not eat, drink or smoke when using this product.

    P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...

    Response

    P301+P317 IF SWALLOWED: Get medical help.

    P330 Rinse mouth.

    P305+P354+P338 IF IN EYES: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

    P317 Get medical help.

    Storage

    none

    Disposal

    P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.

    Other hazards which do not result in classification

    no data available

    Handling and Storage

    Precautions for safe handling

    Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

    Conditions for safe storage, including any incompatibilities

    Separated from acids and strong oxidants.The bulk material should be stored in a well closed container, protected from light, in a cool, dry place.

  • Seller Information
    Business Type:

    Trader

    Main Products:

    Oxalic Acid,Trisodium Phosphate,ammonium bicarbonate,Cocoa Powder,Trichloroisocyanuric Acid,Sodium Percarbonate

    Location:

    22 Floor,Optical Valley lnternational Business Building A,NO.2-2Guandong Yuan Road,East Lake HI-TECH Development District Wuhan City,HubeiChina.

    Payment Terms:

    TT against copy of documents,D/P,L/C,TT against B/L draft before shipment,100% TT in advance

    Average lead Time:

    15

    Total Annual Revenue:

    $25 million-$50 million

    Total Employees:

    101-200

    Year of Establishment:

    2010

    Certifications:

    SGS,Hazardous chemical operating licence,Quality Management System Certificate Award,SGS

    Company Profile

    Wuhan Rui Sunny Chemical Co., Ltd. was established in 2010, which is a trading company specializing in the import and export of chemicals. The company mainly deals in water treatment agents, food additives, organic silicones, basic organic and inorganic chemicals, etc.

     

    The company has a supporting logistics team and warehousing facilities, has a production base in Huanggang, Hubei Province, and an office in HA NOI, Vietnam. The company has ISO9000 certification, as well as a dangerous goods Business License.

     

    We have built a foreign trade team that dares to fight hard based on the business philosophy of integrity, durability and Win-Win, and we have received the support from a large number of domestic and foreign customers. Driven by the marketing of main products, the company is determined to forge ahead, strive to develop, and the scale of market sales continues to expand. We operate more than 80 varieties of products, which have been exported to more than 60 countries or regions around the world. The product quality and service have been widely praised in the same industry.

     

    Look forward to cooperate with you.

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  • Inquiry History
    109 Inquiries
    Country Product Purchase Quantity Date Posted
    India

    sodium metabisulfite 7681-57-4

    200 MT Oct 3, 2024
    India

    Sodium Metabisulphite

    20000.00 TON May 28, 2025
    Georgia

    Sodium Metabisulfite

    5000 KG Dec 8, 2025
    Indonesia

    Sodium Metabisulphite

    750 MT Jul 23, 2026
    India

    Sodium Metabisulphite

    3.00 MT Jul 10, 2026
    South Sudan

    Sodium Metabisulphite

    200 KG Jun 29, 2026
    Russia

    sodium metabisulfite

    1 KG Jun 23, 2026
    Russia

    Sodium pyrosulfite

    3 MT Jun 22, 2026
    Pakistan

    Sodium metabisulfite

    3.00 KG Jun 5, 2026
    Pakistan

    Sodium Metabisulfite

    1.00 KG Jun 3, 2026
    Russia

    sodium metabisilfite

    200 MT May 28, 2026
    Russia

    sodium metabisulfite

    1 KG May 27, 2026
    Russia

    sodium metabisulfite

    200 MT May 18, 2026
    United Arab Emirates

    Sodium Metabisulfite

    0.24 KG May 15, 2026
    Uzbekistan

    Sodium metabisulfite

    1000 MT Apr 9, 2026
    Sri Lanka

    Sodium Metabisulfite

    27 MT Apr 7, 2026
    Oman

    Sodium metabisulfite

    20 MT Mar 25, 2026
    Egypt

    Sodium Metabisulfite

    3000.00 KG Mar 19, 2026
    India

    Sodium Metabisulphite

    1000 KG Mar 18, 2026
    Indonesia

    Sodium Metabisulphite

    13200 L Feb 6, 2026
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