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Home > Food Additives > Bleach > Sodium dithionite for Sale > Sodium dithionite 1
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Sodium dithionite 1

53 Inquiries

Unit Price: Get Latest Price
CAS No.:

7775-14-6

Grade:

Food Grade

Content:

99%

Port:

Shanghai

Brand:

Dideu

Packaging:

25KG/BAG

Price valid (until):

2025-01-25

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

Chemical Pesticides,Food Additives,Agrochemicals,Active Pharm Ingredients,Flavors and Fragrances,Chemical Catalyst

  • Product Description

  • Seller Information

  • Inquiry History

  • Description


      Product Detail  


    Sodium disulfite, commonly known as insurance powder and sodium sulfate, is a strong reducing agent, with two forms of diaqueous salt and anhydrous salt. The dihydrate salt is a yellowish flake crystal with extremely unstable chemical properties. It only exists in alkaline solution and is dehydrated into anhydrous salt when heated to a certain temperature. Anhydrous salt is white crystalline powder, stable existence at room temperature and dry.

    Disodium bisulfite is a strong reducing agent, which has a wide range of applications: 1, widely used in the textile industry, as a reducing agent for reducing dye dyeing, reducing hair bleaching agent, reducing dye printing aid, silk refining and bleaching agent, stripping agent of dyeing material and cleaning agent of dyeing VAT; 2, widely used in paper industry, used as mechanical pulp, hot grinding mechanical pulp and deinking pulp bleaching agent. It is the most suitable bleaching agent for Chemicalbook and wood pulp papermaking. 3, as a reduction bleaching agent is widely used in kaolin bleaching, fur bleaching and reduction whitening, bamboo products and straw products bleaching; 4, used in mineral processing, thiourea and its sulfide synthesis; 5. Used as reducing agent in chemical industry; 6, food additives are mainly used in the food industry, widely used in preserves, dried fruits, dried vegetables, vermicelli, grapes.

    Basic Info
    Product Name:

    Sodium dithionite

    Other Name:

    Dithionous acid,sodium salt (1:2);Dithionous acid,disodium salt;Sodium dithionite;Vatrolite;Hydros;Blankit;Sodium dithionite (Na2(S2O4));Disodium dithionite;Disodium hydrosulfite;Sodium hydrosulfite;Sodium hyposulfite;Burmol;Sodium hydrosulfite (Na2S2O4);V-Brite B;Blankit IN;Hydrosulfite R Conc;Cyclanon ARC;Blankit S;Hydrosulfite F;Oxygen Scavenger SHS;Albite F;1340-77-8

    CAS No.:

    7775-14-6

    Molecular Formula:

    H2O4S2.2Na

    InChIKeys:

    InChIKey=PEXMEGQPKTWBOJ-UHFFFAOYSA-N

    Molecular Weight:

    174.1071

    Exact Mass:

    173.903

    EC Number:

    231-890-0

    UNII:

    2K5B8F6ES1

    ICSC Number:

    1717

    UN Number:

    1384

    DSSTox ID:

    DTXSID9029697

    Color/Form:

    White or grayish-white crystalline powder|Light-lemon-colored solid in powder or flake form|White, colorless or yellow-white crystals

    HScode:

    28311010

    Categories:

    Bleach

    Characteristics
    PSA:

    118.68

    XLogP3:

    0.391

    Appearance:

    White to grayish-white granular powder

    Density:

    2.19

    Melting Point:

    166-168 °C

    Boiling Point:

    1390°C

    Flash Point:

    >100°C o.c.

    Water Solubility:

    H2O: 250 g/L (20 °C)

    Storage Conditions:

    Materials to avoid: strong oxidizing agents, acids.

    Toxicity:

    LD50 orally in Rabbit: 2500 mg/kg

    Explosive limit:

    Closed containers may rupture violently when heated.

    Odor:

    Faint sulfurous

    Experimental Properties:

    Strong reducing agent; also available in liquid form|Decomposes violently when heated to 190 °C and emits toxic fumes of SOx and Na2O.

    Air and Water Reactions:

    Sodium dithionite is a combustible solid which slowly decomposes when in contact with water or water vapor, forming thiosulfates and bisulfites. This reaction evolves heat, which can further accelerate the reaction or cause surrounding materials to burn. If the mixture is confined, the decomposition reaction can result in pressurization of the container which may then rupture forcefully. Upon standing in air it slowly oxidizes, generating toxic sulfur dioxide gas. (NFPA, 2010)

    Reactive Group:

    Anhydrides

    Reactivity Alerts:

    Strong Reducing Agent

    Reactivity Profile:

    Sodium dithionite is a combustible solid which slowly decomposes when in contact with water or water vapor, forming thiosulfates and bisulfites. This reaction evolves heat, which can further accelerate the reaction or cause surrounding materials to burn. If the mixture is confined, the decomposition reaction can result in pressurization of the container which may then rupture forcefully. Upon standing in air it slowly oxidizes, generating toxic sulfur dioxide gas. (NFPA, 2010)

    Autoignition Temperature:

    about 190 °C

    Hazard Identification

    Classification of the substance or mixture

    Self- heating substances and mixtures, Category 1

    Acute toxicity - Category 4, Oral

    GHS label elements, including precautionary statements

    Pictogram(s)
    Signal word

    Danger

    Hazard statement(s)

    H251 Self-heating; may catch fire

    H302 Harmful if swallowed

    Precautionary statement(s)
    Prevention

    P235 Keep cool.

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

    P264 Wash ... thoroughly after handling.

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

    Response

    P301+P317 IF SWALLOWED: Get medical help.

    P330 Rinse mouth.

    Storage

    P407 Maintain air gap between stacks or pallets.

    P410 Protect from sunlight.

    P413 Store bulk masses greater than … kg/…lbs at temperatures not exceeding …°C/…°F.

    P420 Store separately.

    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

    NO open flames. NO contact with combustible substances or water. 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

    Dry. Well closed. Separated from strong oxidants and acids. Store in an area without drain or sewer access.

  • Seller Information
    Business Type:

    Manufactory

    Main Products:

    Chemical Pesticides,Food Additives,Agrochemicals,Active Pharm Ingredients,Flavors and Fragrances,Chemical Catalyst

    Location:

    https://www.dideu.com/en/

    Payment Terms:

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

    Average lead Time:

    7

    Total Annual Revenue:

    Above $100 million

    Total Employees:

    Above 1000

    Year of Establishment:

    2016

    Certifications:

    ISO Certificate,REACH

    Company Profile
    ">
  • Inquiry History
    53 Inquiries
    Country Product Purchase Quantity Date Posted
    Turkmenistan

    Sodium Hydrosulfite 88%

    20 MT Apr 10, 2026
    Germany

    Sodium Hydrosulfite

    10 MT Jun 18, 2026
    Kenya

    Sodium Hydrosulfite

    20 20' Fcl Feb 27, 2026
    Nigeria

    sodium hydrosulfite

    1 KG Feb 3, 2026
    Nigeria

    sodium hydrosulphite

    1 KG Feb 2, 2026
    India

    Sodium hydrosulphite

    1.00 KG Jan 22, 2026
    Egypt

    sodium hydrosulfite 90 %

    22000 KG Jan 13, 2026
    Guinea

    Sodium Hydrosulfite

    20 40' Fcl Jan 5, 2026
    Pakistan

    Sodium Hydrosulfite

    2.00 20' Fcl Dec 30, 2025
    Malaysia

    Sodium Hydrosulphite

    1 20' Fcl Dec 3, 2025
    Malaysia

    Sodium Hydrosulphite 90%

    1 KG Dec 2, 2025
    Pakistan

    Sodium Hydrosulfite 90%

    10 20' Fcl Nov 4, 2025
    Vietnam

    Sodium Hydrosulfite

    1 20' Fcl Oct 16, 2025
    South Africa

    Sodium Hydrosulfite

    86400 KG Sep 23, 2025
    Australia

    Sodium Hydrosulfite 88%

    1 BOU Aug 11, 2025
    Nigeria

    Hydrosulfite Sodium

    270 TON Aug 1, 2025
    Ivory Coast

    Sodium hydrosulfite

    1 20' Fcl Jul 17, 2025
    Ireland

    Sodium Hydrosulfite

    1.5 TON May 26, 2025
    Myanmar

    Yl -3 (Sodium Hydrosulphite)

    3 KG Mar 24, 2025
    Pakistan

    sodium dithionite

    1 MT Oct 20, 2024
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