Product
Supplier
Encyclopedia
Inquiry
Home > Inorganic Chemistry > Inorganic Salts > Sodium pyrosulfite for Sale > Sodium Metabisulfite 97.5-100%
Sodium Metabisulfite 97.5-100% buy - large image1
Sodium Metabisulfite 97.5-100% buy - image1

Sodium Metabisulfite 97.5-100%

109 Inquiries

Unit Price: Get Latest Price
CAS No.:

7681-57-4

Grade:

Industrial Grade

Content:

97.5-1%

Port:

QINGDAO

Packaging:

25kg/0.2kg Bag

Price valid (until):

2016-09-01

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

  • Product Description

  • Seller Information

  • Inquiry History

  • Description

    Sodium metabisulfite is white or yellow crystalline powder or small crystal, with a strong smell of SO2, the proportion of 1.4, soluble in water, acidic aqueous solution, contact with strong acids released SO2 and generates the corresponding salts, long in the air, is oxidized to Na2S2O6, so the product can not be stored for a long time. Above 150 degrees Celsius, that is, the decomposition of SO2.

    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:

    Manufactory

    Location:

    Outside the jiading district, town huyi road, lane 5688, 500

    Shanghai Jiading District Malu Chemical Factory Co., Ltd. is located in the first city Chinese ---- Shanghai, is an international metropolis economy, science and technology, industry, trade, and shipping center exhibition. The company was founded in 1954, specializing in the production of sodium sulfite sodium sulfate products. The factory experienced in September 1969, February 1986, January 2000 and January 2013 four relocation site, building a new plant expansion expansion. New construction land area of 22700 square meters, with a total construction area of 13590 square meters, green area of 4200 square meters. Product sodium sodium sulfate production equipment has experienced four major upgrading. The production process after numerous technological transformation, scientifically summarizes the effective operation of a set of manufacturing high quality products, reasonable layout of production equipment, production process technology data, environmental protection measures, quality management system, so that the sodium pyrosulfite from 1954 with an annual output of 15 tons, 150 thousand tons for now. Malu chemical factory director in charge of implementing the system, the set of all organization technical director, production manager, business director, office of science, technology and quality, administrative department, production department, equipment department, workshop, warehouse, marketing department, finance department, personnel at all levels of the organization in accordance with their respective division of work and responsibilities, the implementation of operation the process of related activities on the basis of the document of quality management system and management. Malu chemical factory is located in Shanghai, richly endowed by nature geographical advantage, product sales accounted for the first, the material consumption of consumption in our country, the lowest yield the highest. Product quality has reached the international advanced level, by domestic and foreign customers trust.

  • 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
    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
pic ×

Scan the QR Code to Share

All products displayed on this website are only for non-medical purposes such as industrial applications or scientific research, and cannot be used for clinical diagnosis or treatment of humans or animals. They are not medicinal or edible.

According to relevant laws and regulations and the regulations of this website, units or individuals who purchase hazardous materials should obtain valid qualifications and qualification conditions.

The information shown above is provided by the enterprise itself, and the authenticity, accuracy and legitimacy of the content are the responsibility of the publishing company. ECHEMI does not bear any guarantee responsibility for this. Please be aware that risks in internet transactions objectively exist.

Feedback & Suggestions
Send Message

Thank you for your feedback. If you require further assistance, please contact us by email at info@echemi.com or call us at +86-532-55729510.