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Sodium hyposulfite Manufacturer and Supplier

CAS No.: 7446-19-7| EC Number.: 616-096-8| Molecular formula.: H2O5SZn

Sodium hyposulfite

Sodium Hyposulfite Manufacturers, Sodium Hyposulfite Suppliers, Sodium Hyposulfite Price, Sodium Hyposulfite Formula, Sodium Hyposulfite Exporter in Mumbai, India.

Vinipul Chemicals Pvt. Ltd. is a renowned manufacturer, supplier, and exporter in India, specializing in high-purity Sodium Hyposulfite CAS No:7772-98-7. As a reliable Sodium Hyposulfite manufacturer, our company is well-regarded for providing specialty chemicals with impeccable quality and accurate composition. We prioritize the use of superior purity chemicals and employ the latest manufacturing equipment to ensure that our Sodium Hyposulfite is free from impurities, adhering to international industry standards.

As a leading Sodium Hyposulfite manufacturers in India, we take pride in offering chemicals of exceptional quality. Our product is meticulously formulated to meet the precise composition requirements of our customers. Additionally, our Sodium Hyposulfite boasts an extended shelf life, ensuring that it remains reliable and effective over an extended period. Choose Vinipul Chemicals Pvt. Ltd. as your trusted Sodium Hyposulfite supplier and experience the assurance of superior quality, accurate composition, and long-lasting performance.

Sodium Hyposulfite Specification

Chemical name

Sodium Hyposulfite



EC Number


Commercial name / Synonyms

SODIUM THIOSULFATE, 7772-98-7, Sodium thiosulphate, sodium thiosulfate, Sodium thiosulfate, Hypo, Chlorine Control, Thiosulfuric acid, disodium salt, UNII-L0IYT1O31N

Molecular formula


Molecular weight

158.11  g/mol

Melting Point

48.5 °C



Physical Form 


Physical Appearance 

Dry Powder /  Liquid /  Pellets Large Crystals /  Gas Vapor /  Liquid /  Other Solid

Packaging Details 

25 kg / 50 kg / HDPE packaging bags / Drum/ As per Client’s requirements

What is Sodium Hyposulfite?

Sodium hyposulfite, also known as Sodium thiosulfate or “hypo,” is an inorganic compound represented by the chemical formula Na2S2O3.xH2O. In its common form, it appears as a white or colourless crystalline solid, referred to as the pentahydrate, Na2S2O3•5H2O. This solid has the characteristic of efflorescence, meaning it readily loses water molecules. When dissolved in water, it exhibits good solubility.

Sodium Hyposulfite solution consists of sodium ions and thiosulfate ions in a 2:1 ratio, making it an inorganic sodium salt. It has a melting point of 48.5°C and is virtually insoluble in alcohol. In 100 cc of water, approximately 20.9 grams of Sodium Thiosulfate can dissolve. The density of Sodium Thiosulfate is measured at 1.7 g/cm³.

Sodium Hyposulfite Price

If you are looking to purchase Sodium Hyposulfite, it’s important to know the current market price. Sodium Hyposulfite price can vary depending on the various factors. Vinipul Chemicals offers the best price in the market listed below: –

Product Range


Sodium Hyposulfite

Rs 70/kg

Prices shown above are provisional prices and may change due to different market conditions for latest prices

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+91-932 223 1817

Properties of Sodium Hyposulfite

Sodium hyposulfite, also known as sodium thiosulfate, has several notable properties. Here are some key characteristics of this compound:

Physical state

It is a white crystalline solid at room temperature. It typically appears as colourless or slightly yellowish crystals or powder.


Sodium hyposulfite is highly soluble in water. The solubility of sodium hyposulfite allows it to easily dissolve and form aqueous solutions.


Sodium hyposulfite is odorless.

Molecular Formula

The chemical formula of sodium hyposulfite is Na2S2O3, indicating that each molecule contains two sodium (Na) atoms, one sulfur (S) atom, and three oxygen (O) atoms.


Aqueous solutions of sodium hyposulfite are slightly alkaline, with a pH ranging between 9 and 10.


It is relatively stable under normal conditions. However, Sodium hyposulfite may decompose when exposed to high temperatures or strong acids, releasing sulfur dioxide gas (SO2).

Reducing Agent

 Sodium hyposulfite exhibits reducing properties, meaning it can donate electrons to other chemical species in certain reactions.


Sodium hyposulfite has hygroscopic properties, which means it has a tendency to absorb moisture from the surrounding environment


While it is generally considered to have low toxicity, Sodium hyposulfite can cause skin and eye irritation. It is important to handle this compound with proper safety precautions and follow recommended handling guidelines.

Sodium Hyposulfite Applications

Sodium Hyposulfite finds diverse applications across various industries. Here are some of the key sodium hyposulfite uses:

  1. Medicine: Sodium hyposulfite is used in medical treatments, especially in the treatment of cyanide poisoning, where it acts as an antidote by reacting with cyanide ions to form less toxic thiocyanate.
  2. Neutralizing Chlorinated Water: Sodium Hyposulfite is used to neutralize chlorinated water in applications such as fish tanks, swimming pools, and wastewater treatment facilities.
  3. Leather Tanning: Sodium hyposulfite is utilized in the tanning of leather, assisting in the removal of excess chromium from the tanning process, which helps enhance the quality and texture of the leather.
  4. Patina Recipes for Copper Alloys: Sodium Hyposulfite is incorporated into patina recipes for copper alloys, aiding in the formation of desired Colors and textures on the metal surfaces.
  5. Pharmaceutical Preparations: Sodium Hyposulfite is often used in pharmaceutical preparations as an anionic surfactant to aid in dispersion and enhance the solubility of certain medications.
  6. Chemical Heating Pads: Sodium hyposulfite is a component in hand warmers and chemical heating pads that generate heat through exothermic crystallization of a supercooled solution.
  7. Bacteriological Water Assessment: Sodium Hyposulfite is employed in bacteriological water assessment to promote the survival of coliform organisms by neutralizing residual chlorine, facilitating accurate microbial analysis.

These applications highlight the versatility and importance of Sodium Hyposulfite in various industries, ranging from medicine and photography to water treatment and metalworking.

About Vinipul Chemicals

Vinipul Chemicals Pvt. Ltd. is a well-established and renowned company that excels in the manufacturing, supplying, and exporting of Sodium Hyposulfite. With a strong presence in the industry, Vinipul Chemicals is recognized for its exceptional expertise in producing high-quality Sodium Thiosulfate Anhydrous. The company is committed to delivering reliable and consistent products to meet the diverse needs of its global clientele. Vinipul Chemicals Pvt. Ltd. stands as a trusted name in the market, offering a comprehensive range of chemical solutions and maintaining a strong focus on customer satisfaction and product excellence.

Industries We Serve

Market Area

We supply and exports Sodium Hyposulfite in all parts of the world such as

Sodium Hyposulfite in Africa Countries

South Africa , Nigeria, Kenya, Ghana, Ethiopia, Tanzania, Algeria, Angola, Benin, Botswana, Burkina Faso, Burundi, Cabo Verde, Cameroon, Central African Republic (CAR), Chad, Comoros, Democratic Republic of the Congo, Côte d’Ivoire, Djibouti, Egypt, Equatorial Guinea, Eritrea, Gabon, Gambia, Guinea, Guinea-Bissau, Lesotho, Liberia, Libya, Madagascar, Malawi, Mali, Mauritania, Mauritius, Morocco, Mozambique, Namibia, Nigeria, Rwanda, Sao Tome and Principe, Senegal, Seychelles, Sierra Leone, Somalia, South Sudan, Sudan, Swaziland, Togo, Tunisia, Uganda, Zambia, Zimbabwe.

Sodium Hyposulfite in Gulf Countries

Oman, Qatar, Kuwait, Saudi Arabia, Dubai, Bahrain, Iran, United Arab Emirates

Sodium Hyposulfite in Asia Countries

Afghanistan, Armenia, Azerbaijan, Bahrain, Bangladesh, Bhutan, Brunei, Cambodia, China, Cyprus, Georgia, India, Indonesia, Iran, Iraq, Israel, Japan, Jordan, Kazakhstan, Kuwait, Kyrgyzstan, Laos, Lebanon, Malaysia, Maldives, Mongolia, Myanmar (Burma), Nepal, North Korea, Oman, Pakistan, Palestine, Philippines, Qatar, Russia, Saudi Arabia, Singapore, South Korea, Sri Lanka, Syria, Taiwan, Tajikistan, Thailand, Timor-Leste, Turkey, Turkmenistan, United Arab Emirates (UAE), Uzbekistan, Vietnam, Yemen

We supply Sodium Hyposulfite in all parts of India.

Andhra Pradesh, Arunachal Pradesh, Assam, Bihar, Chhattisgarh, Goa, Gujarat, Haryana, Himachal Pradesh, Jammu & Kashmir, Jharkhand, Karnataka, Kerala, Madhya Pradesh, Maharashtra, Manipur, Meghalaya, Mizoram, Nagaland, Odisha, Punjab, Rajasthan, Sikkim, Tamil Nadu, Telangana, Tripura, Uttarakhand, Uttar Pradesh and West Bengal.

Note: – Please be advised that the information contained in this document is intended for illustrative purposes only. Due to variations in product grade, applications, industries, or uses, the accuracy of the information provided cannot be guaranteed. © Copyright 2023 © Vinipul Chemicals All Rights Reserved (Terms of Use). Reproduction of any material from this site is strictly prohibited without permission. Vinipul Chemicals products are exclusively sold through the company’s website. For precise product specifications and requirements, as well as advice on which products are best suited for your specific application needs, please contact us at [email protected] Use Terms | Privacy.

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