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Home > Food Additives > Other Food Additives > Sodium pyrosulfite for Sale > Factory Bulk Price Manufacturer 99 % Industrial Grade Cas 7681-57-4 Sodium Metabisulfite Price Sodium Pyrosulfite
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Factory Bulk Price Manufacturer 99 % Industrial Grade Cas 7681-57-4 Sodium Metabisulfite Price Sodium Pyrosulfite

107 Inquiries

Unit Price: Get Latest Price
CAS No.:

7681-57-4

Grade:

Food Grade, Industrial Grade

Content:

99%

Port:

China

Brand:

TNN

Packaging:

25kgs/bag

Price valid (until):

2025-06-30

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

Sodium benzoate,Potassium sorbate,Xanthan gum,phosphoric acid,citric acid,Aminophylline anhydrous

  • Product Description

  • Seller Information

  • Inquiry History

  • Description
    Shop Factory Bulk Price Manufacturer 99 % Industrial Grade Cas 7681-57-4 Sodium Metabisulfite Price Sodium Pyrosulfite-Detailed Image 1
    Shop Factory Bulk Price Manufacturer 99 % Industrial Grade Cas 7681-57-4 Sodium Metabisulfite Price Sodium Pyrosulfite-Detailed Image 2
    Shop Factory Bulk Price Manufacturer 99 % Industrial Grade Cas 7681-57-4 Sodium Metabisulfite Price Sodium Pyrosulfite-Detailed Image 3
    Shop Factory Bulk Price Manufacturer 99 % Industrial Grade Cas 7681-57-4 Sodium Metabisulfite Price Sodium Pyrosulfite-Detailed Image 4
    Shop Factory Bulk Price Manufacturer 99 % Industrial Grade Cas 7681-57-4 Sodium Metabisulfite Price Sodium Pyrosulfite-Detailed Image 5

    Product Name Cas 7681-57-4 Sodium Metabisulfite
    CAS No. 7681-57-4
    Molecular Formula Na2O5S2
    Appearance White Powder
    Purity 99%
    Grade Food Grade


     (1) Food Grade: Bleach agent (e.g. candies, cake, bamboo shoots, etc); Loose agent (e.g. bread, cracker etc); Antiseptic and germicide (e.g. fruit juice, tinned food, brews, the cereals food is defended storage etc); Inhibitor and freshen agent (e.g. day lily, seafood, fruit and vegetable etc).

    (2) Industry Grade: Mordant of printing and dyeing; Dechlorinate of textile after
    bleaching; Sulphonated agent and reducer of chemical industry and pharmacy; Bleach of paper pulp, bamboo and timber bleach of Stap; Treatment agent of waste water; Rubber solidifying agent Perfume industry is served as hydro carbon perfume aldehyde The hide profession employ to do to molt dose and pliable dose and wearproof dose; sewage treatment, and so on .
    Shop Factory Bulk Price Manufacturer 99 % Industrial Grade Cas 7681-57-4 Sodium Metabisulfite Price Sodium Pyrosulfite-Detailed Image 6
    Shop Factory Bulk Price Manufacturer 99 % Industrial Grade Cas 7681-57-4 Sodium Metabisulfite Price Sodium Pyrosulfite-Detailed Image 7
    Shop Factory Bulk Price Manufacturer 99 % Industrial Grade Cas 7681-57-4 Sodium Metabisulfite Price Sodium Pyrosulfite-Detailed Image 8
    Shop Factory Bulk Price Manufacturer 99 % Industrial Grade Cas 7681-57-4 Sodium Metabisulfite Price Sodium Pyrosulfite-Detailed Image 9

    Our Advantages:

    Who are we?

    1. TNN was founded in 1998 with headquarters in Dalian, branch offices in USA, Austrilia.

    2. ISO9001 Certificated,annual Sales Amount 28million US dollors, cooperative ralationship with 60+countries.

    3.We are based in Liaoning, China, start from 2018,sell to Eastern Asia(60.00%),North America(20.00%),Africa(20.00%). There are total about 11-50 people in our office.

    4. how can we guarantee quality?
    Always a pre-production sample before mass production;
    Always final Inspection before shipment;

    5.what can you buy from us?
    Vitamin C, Phosphoric Acid, Citric Acid, Potassium Sorbate, Monosodium Glutamate

    6. why should you buy from us not from other suppliers?
    We engages in global connection and international services.We focus on product quclity contral,R&D,professional services and social economical responsiblity.

    7. what services can we provide?
    Accepted Delivery Terms: FOB,CFR,CIF,EXW,DDP,DDU,Express Delivery,DAF;
    Accepted Payment Currency:USD,EUR;
    Accepted Payment Type: T/T,L/C,D/P D/A;
    Language Spoken:English,Chinese,Spanish,Japanese,Russian,Korean

    What we can do?

    1. Customer-oriented sourcing and supply service.

    2. Pre-shipment sample test and third-party inspection to assure product quality.

    3. Customized label and packing, reinforced palletizing method to keep cargo in good condition.

    4. Professtional service on mixed container load with 20+ different products in one consignment.

    5. Fast speed of delivery under multiple modes of trasportation including sea,railway,air,courier.

    Advantages:

    1.     26-year export experience

    2.     Mix container and professional loading with taking photos of every step.

    3.     Our own lab, test pre-shipment sample before shipment and keep batch samples

    Strict quality control:

    Firstly test pre-shipment sample by TNN's lab,

    If test succeeds, deliver (same batch) pre-shipment sample and confirm the Original COA with clients,

    After confirmation we ship the (same batch) cargos.

    If test fails,shipment suspends,TNN corrects and offers qualified one.

    Mission interpretation

    Income:  Stable and keep rising

    Well-off life: Have a car and there own house, Children can get a good education The old can be supported  

    Work hard: become an expert in our field

    The fastest delivery, The fastest shipment , The fastest documents

    Transportation for mixed products containers and dangerous cargos 

    Keep stock

    Provide market analysis report

    Multiple payment ways  long payment periods


    Exported dihydroartemisinin to Nigeria to make the medicine for malari


    The Charity Federation of Africa raised money and bought a water line

    give discounts , timely delivery with insufficient balance.

    In 2006,TNN passed verification of ISO 9001:2008.Since 2016,TNNhas established 3 overseas companies and warehouses in USA,AUS,UAE to keep fast delivery.Meanwhile TNN now is shareholder offactories for some food additives,mini air pump and easy pull cap.

    The TNN Development Limited is a manufacturing and distributinggroup for food additives and machine with ISO 9001:2008 Certificate.TNN is working closely with partners from Europe,Asia,North America,Latin America and Africa for export business of below:


    ●Food Additives & Plant Extracts

    ●Fine Chemicals

    ●Cosmetics

    ●Pharmaceutical Raw Materials(API)

    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:

    Other Food Additives

    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:

    Sodium benzoate,Potassium sorbate,Xanthan gum,phosphoric acid,citric acid,Aminophylline anhydrous

    Location:

    RM2901, Rainbow Building, No.23, Renmin Road, Zhongshan Dist.

    Payment Terms:

    TT against copy of documents,D/P,L/C,D/A,O/A

    Average lead Time:

    30

    Total Annual Revenue:

    $10 million-$25 million

    Total Employees:

    11-50

    Year of Establishment:

    2006

    Certifications:

    QUALITY MANAGEMENT SYSTEM CERTIFICATE,kosher certification,SERTIFIKAT HALAL-HALAL CERTIFICATE,EU GMP

    Over 25 Years' Import and Export Experience
    TNN was founded in 1998 in Dalian China with headquarter in Dalian, overseas branch offices in the USA, Australia, and Dubai. TNN has three domestic branches in Jilin, Shanghai, and Shenyang. Mix container and professional loading with taking photos of every step. Our own laboratory, pre-shipment sample before shipment, and keep batch samples.

    Our Products
    Specialize in chemicals, fashion accessories, lotion pumps & sprayers, tyres, gloves & other epidemic prevention products, and bottle caps supplying to all over the world. TNN will make your life better.

    ISO9001:2015 Company with Perfect Loading 
    Certified by ISO9001, CE, GMP, FDA, specializing in food, feed additives, APIS, Cosmetics, Medical instruments, chemical raw materials, and more.

    Exporting to 60+ Countries
    Our products have been sold to clients all over the world, such as Japan, Korea, Mideast, Middle Asia, Europe, Africa, India, South America, keeping a cooperative relationship with 60+ countries. We are firmly committed to our mission of creating a global trade network on supply, sales, and service.

    Cooperate with Us Today
    Contact us today to discuss mutually beneficial cooperation.
  • Inquiry History
    107 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
    Pakistan

    Sodium metabisulfite

    3.00 KG Jun 5, 2026
    Pakistan

    Sodium Metabisulfite

    1.00 KG Jun 3, 2026
    Russia

    sodium metabisulfite

    1 KG May 29, 2026
    Russia

    sodium metabisilfite

    200 MT May 28, 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
    Bahrain

    Sodium Metabisulfate

    1.00 KG Feb 4, 2026
    India

    Sodium Metabisulphite

    2.00 MT Jan 21, 2026
    United States

    Sodium Metabisulphite 97%

    28 MT Jan 4, 2026
    Pakistan

    Sodium metabisulfite

    3.00 20' Fcl Dec 23, 2025
    South Africa

    Sodium Metabisulphite

    1 MT Nov 14, 2025
    Pakistan

    Sodium Metabisulfite 97%

    1.00 KG Nov 4, 2025
    Pakistan

    Sodium Metabisulfite

    3.00 20' Fcl Oct 13, 2025
    India

    Sodium Meta Bi Sulphite

    2.00 MT Oct 11, 2025
    Post an enquiry for this product
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