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Home > Inorganic Chemistry > Inorganic Salts > Sodium dithionite for Sale > Sodium Hydrosulfite / Sodium Dithionite 90%
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Sodium Hydrosulfite / Sodium Dithionite 90%

48 Inquiries

Unit Price: Get Latest Price
CAS No.:

7775-14-6

Grade:

Industrial Grade

Content:

90%

Port:

Durban Port

Packaging:

50kg Iron Drums

Price valid (until):

2024-03-28

Company Type:
Distributor
Location:
South Africa
Qualification:
Main Products:

Sodium Lauryl Ether Sulfate,Caustic Soda,Soda Ash,Citric Acid,Calcium Hypochlorite,Oxalic Acid

  • Product Description

  • Seller Information

  • Inquiry History

  • Description


      Product Detail  


    Sodium Hydrosulfite /Sodium Hydrosulphite  85% 88% 90%

    Molecular formula: Na2S2O4

    Appearance: white free-flow crystal powders

    Packing: 50kg or 100kg net in iron drums.


    Items Specifications
    Name Sodium Hydrosulfite /Sodium Hydrosulphite /Sodium Dithionite
    Purity 85% 88% 90%
    Grade Industry Grade / Food Grade 

    Sodium Hydrosulphite Application:                                   

    1. Widely used in textile industry for vat dyeing, reduction cleaning, printing and stripping, textile textile bleaching.

    2. It is also used in bleaching paper pulps, especially mechanical pulps, it’s the most fitable bleaching agent in pulps.

    3. It is used in bleaching kaolin clay, fur bleaching and reductive whitening, bleaching of bamboo products and straw products.

    4. It is used in mineral, the compound of thiourea and other sulphides.

    5. It is used as reducing agent in chemical industry.

    6. Sodium hydrosulfite food additive grade is used in foodstuffs, as bleaching agent and preservative in dried fruits, dried vegetable, vermicelli, glucose, sugar, rock sugar, caramel, candy, liquid glucose, bamboo shoots, mushrooms and canned

    Items Specifications






    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:

    Inorganic Salts

    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:

    Distributor

    Main Products:

    Sodium Lauryl Ether Sulfate,Caustic Soda,Soda Ash,Citric Acid,Calcium Hypochlorite,Oxalic Acid

    Location:

    13 PROTEA PARK MILKWOOD STREET RANGEVIEW GAUTENG 1739

    Payment Terms:

    TT against copy of documents,TT against B/L draft before shipment

    Average lead Time:

    60

    Total Annual Revenue:

    $1 million-$2.5 million

    Total Employees:

    11-50

    Year of Establishment:

    2012

  • Inquiry History
    48 Inquiries
    Country Product Purchase Quantity Date Posted
    Turkmenistan

    Sodium Hydrosulfite 88%

    20 MT Apr 10, 2026
    India

    SODIUM HYDRO SULPHITE

    500 KG Jun 1, 2026
    India

    Sodium hydrosulphite

    1.00 KG Jan 22, 2026
    Guinea

    Sodium Hydrosulfite

    20 40' Fcl Jan 5, 2026
    Pakistan

    Sodium Hydrosulfite

    240000 KG Dec 29, 2025
    United Arab Emirates

    Sodium HYDROSULPHITE 92 %

    100.00 MT Oct 9, 2025
    Vietnam

    Sodium Hydrosulphite

    2 20' Fcl Oct 9, 2025
    Bangladesh

    SODIUM HYDROSULPHITE - 88% MIN ( 50 KG BLUE IRON DRUM )

    44 MT Aug 15, 2025
    Nigeria

    Hydrosulfite Sodium

    270 TON Jul 24, 2025
    Ivory Coast

    Sodium hydrosulfite

    1 20' Fcl Jul 17, 2025
    Ivory Coast

    Sodium hydrosulfite

    1 20' Fcl Jul 17, 2025
    Egypt

    Sodium Hydrosulphite

    1 MT Jun 4, 2025
    Ireland

    Sodium Hydrosulfite

    1.5 TON May 26, 2025
    United Arab Emirates

    sodium hydrosulfite

    1 20' Fcl May 21, 2025
    Egypt

    Sodium Hydrosulphite

    1 MT Dec 25, 2024
    Bangladesh

    sodium Hydrosulphite 88%

    1.00 MT Sep 29, 2024
    Bangladesh

    Sodium Hydrosulphite

    1000 KG Sep 27, 2024
    Peru

    SODIUM HYDROSULPHITE

    1 20' Fcl Aug 21, 2024
    Bangladesh

    Dragon Brand Sodium Hydrosulfite 90%

    15 TON Jun 1, 2024
    Myanmar

    Sodium Hydrosulphite

    1 MT Feb 18, 2024
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