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Sodium Thiosulphate Manufacturer and Supplier

CAS No.: 7772-98-7 | EC Number.: 231-867-5 | Molecular formula.: Na2O3S2, Na2S2O3

Sodium Thiosulphate

Sodium Thiosulphate Manufacturers, Sodium Thiosulphate Suppliers, Sodium Thiosulfate Formula, Sodium Thiosulfate MSDS, Sodium Thiosulphate SDS, Sodium Thiosulphate Exporter in Mumbai, India.

Vinipul Chemicals Pvt. Ltd. is a renowned manufacturer, supplier, and exporter in India, specializing in high-purity Sodium Thiosulfate CAS No:7772-98-7. As a reliable sodium thiosulfate 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 Thiosulfate is free from impurities, adhering to international industry standards.

As a leading sodium thiosulfate 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 Thiosulfate 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 thiosulfate supplier and experience the assurance of superior quality, accurate composition, and long-lasting performance.

What is Sodium Thiosulphate?

Sodium thiosulphate, 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 Thiosulphate 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 Thiosulphate Details

This table provides information about Sodium Thiosulphate, a chemical compound with the CAS No. 7772-98-7 and EC Number. 231-867-5. The table also lists various Sodium Thiosulphate common name and synonyms. The table contains Sodium Thiosulphate structure, Sodium Thiosulphate solubility and molecular formula. Sodium Thiosulphate pH. value is also mentioned in the table. Sodium Thiosulphate is commonly used in various industries in different applications. It is also used in the pharmaceutical industry for various purposes.


Chemical nameSodium Thiosulphate
CAS No7772-98-7
EC Number231-867-5
Commercial name / SynonymsSodium thiosulphate, sodium thiosulfate, Sodium thiosulfate, Hypo, Chlorine Control, Thiosulfuric acid, disodium salt, UNII-L0IYT1O31N
Molecular formulaNa2O3S2
Chemical Structure
Melting Point48.5 °C
IUPAC Namedisodium-dioxido-oxo-sulfanylidene-λ6-sulfane
Component CompoundsThiosulfuric acid
Physical Appearance Dry Powder /  Liquid /  Pellets Large Crystals /  Gas Vapor / Other Solid
Solubility in water g/100ml at 20 °C20.9
pH6.0 – 7.5
Packaging Details 25 kg / 50 kg / HDPE packaging bags / Drum/ As per Client’s requirements

Computed Properties

The table provides various properties of a chemical compound, including its Sodium Thiosulphate molar mass, four hydrogen bond acceptor counts, an exact mass and mono-isotopic mass, heavy atom counts, and a topological polar surface area. These properties are useful in identifying and characterizing the compound for various purposes in industries such as pharmaceuticals and chemicals.
Property Name Property Value
Molecular Weight 158.11 g/mol
Hydrogen Bond Acceptor Count 4
Exact Mass 157.90842477 g/mol
Monoisotopic Mass 157.90842477 g/mol
Heavy Atom Count 7
Topological Polar Surface Area 104Ų
Complexity 82.6
Covalently-Bonded Unit Count 3
Compound Is Canonicalized Yes

Related Compounds with Annotation

The table provides information on various compounds related to Sodium Thiosulfate (CAS number 7772-98-7). The compounds include Sodium thiosulphate, Disodium thiosulfate, sodiumthiosulfate, trisodium thiosulfate, and AKOS040765861. Each compound is assigned a Compound CID and is represented in a 2D structure image. The “Neighbour Type” column indicates whether the compound has any associated neighbours, and the “Annotation Types Count” column shows the number of annotation types linked to each compound. Overall, the table presents a concise overview of the compounds and their respective properties or relationships within the context of Sodium Thiosulfate.

Sodium Thiosulfate Price

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

Product RangePrice
Sodium Thiosulphate PentahydrateRs 30/kg
Sodium Thiosulphate CrystalRs 50/kg
Sodium Thiosulphate anhydrousRs 65/kg
Sodium hyposulfiteRs 70/kg

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

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Types of Sodium Thiosulphate

Sodium Thiosulfate Pentahydrate

Sodium Thiosulfate Pentahydrate, with the chemical formula Na2S2O3•5H2O, is a crystalline form of Sodium Thiosulfate that contains five water molecules per molecule of Sodium Thiosulfate. It appears as a white or colourless solid and is known for its efflorescent properties

Sodium Thiosulfate Crystal

Sodium Thiosulfate Crystal refers to the solid form of Sodium Thiosulfate, which can include both the anhydrous form and the pentahydrate form. These crystals are typically obtained through the crystallization process, where Sodium Thiosulfate solutions are allowed to cool down slowly

Sodium Thiosulfate Anhydrous

Sodium Thiosulfate Anhydrous is the anhydrous (without water) form of Sodium Thiosulfate, with the chemical formula Na2S2O3. It lacks water molecules and appears as a white crystalline solid. Unlike the pentahydrate form, the anhydrous form does not have efflorescent properties and is more stable in dry conditions.

Sodium Hyposulfite

Sodium Hyposulfite is another name for Sodium Thiosulfate. It is often referred to as “hypo” and is commonly used in various applications, including photography, medical treatments, and as a dechlorinating agent. Sodium Hyposulfite is a synonym for Sodium Thiosulfate and represents its broad usage in different industries.

Sodium Thiosulphate Manufacturing Process

The preparation of sodium thiosulphate typically involves the following steps:

  1. Raw Material Preparation: The first step is to gather the necessary raw materials for the production of Sodium Thiosulfate. Sodium thiosulphate is prepared by sodium hydroxide (NaOH) and sulfur or sodium sulfite (Na2SO3). These raw materials are carefully selected for their purity and quality.
  2. Reaction: In this step, the sodium sulfite or sulfur is reacted with sodium hydroxide in the presence of water. The reaction forms a solution of Sodium Thiosulfate. The balanced chemical equation for this reaction is as follows:
    Na2SO3 + 2NaOH → Na2S2O3 + H2O
    S + 2NaOH → Na2S2O3 + H2O
    The reaction is typically carried out in a reactor vessel under controlled conditions of temperature and pressure.
  3. Filtration and Purification: After the reaction, the resulting solution is filtered to remove any solid impurities or by-products. Filtration helps to achieve a clear and pure Sodium Thiosulfate solution.
  4. Concentration: The filtered solution is then concentrated by evaporating the water content. This step is usually performed under reduced pressure or by utilizing heat to remove the water, leading to an increase in the concentration of Sodium Thiosulfate.
  5. Crystallization: The concentrated solution is allowed to cool down slowly, promoting the formation of Sodium Thiosulfate crystals. The crystals are separated from the remaining solution through filtration or centrifugation.
  6. Drying: The separated Sodium Thiosulfate crystals are subjected to drying processes to remove any remaining moisture. This can be accomplished through air drying or by using drying equipment such as rotary dryers.
  7. Packaging and Storage: Finally, the dried Sodium Thiosulfate crystals are packaged in appropriate containers, ensuring their protection from moisture and other environmental factors. Proper labelling is done to indicate the composition, purity, and other relevant information. The packaged Sodium Thiosulfate is then stored in suitable conditions to maintain its quality and shelf life.

It is important to note that variations in the manufacturing process may exist depending on the specific production setup and requirements of different manufacturers.

Is sodium thiosulfate in food?

Sodium Thiosulfate is used as a food additive and has been deemed generally safe by health authorities such as the United States Food and Drug Administration (FDA). It is commonly utilized in the food industry as a preservative to help extend the shelf life of certain food products. However, it’s important to note that the use of Sodium Thiosulfate as a food additive and the permitted amounts can vary by country and specific food regulations. It is always advisable to refer to local food regulatory agencies or guidelines for accurate and up-to-date information on the use of Sodium Thiosulfate in food.

Is sodium thiosulfate organic or inorganic?

Sodium Thiosulfate is an inorganic compound. It is composed of sodium (Na) and thiosulfate ions (S2O3-) and does not contain carbon atoms, which are essential for organic compounds. Therefore, Sodium Thiosulfate is classified as an inorganic compound.

Is sodium thiosulfate a reducing agent?

Sodium Thiosulfate is considered a reducing agent. In chemical reactions, it can donate electrons to other substances, leading to the reduction of those substances. Sodium Thiosulfate is often used as a reducing agent in various applications, such as in photographic processing, where it helps to reduce silver halide ions to metallic silver. Its ability to act as a reducing agent is attributed to the presence of sulfur and sulfur-containing ions in its chemical structure.

Industrial Applications

Sodium Thiosulphate finds a wide range of industrial applications due to its unique properties. Here are some of the key industrial applications of Sodium Thiosulfate:


Water Treatment

Sodium Thiosulphate is utilized in water treatment processes as a dechlorinating agent. It effectively neutralizes chlorine and chloramines present in water, making it suitable for applications such as fish tanks, swimming pools, and wastewater treatment facilities.

Analytical Chemistry

 In analytical chemistry, Sodium Thiosulfate is employed in various titration methods to determine the concentrations of certain compounds. It acts as a reducing agent and can react with iodine and other oxidizing agents, facilitating quantitative analysis.

Gold and Silver Extraction

 Zinc Sulphate is included in animal feed formulations to ensure proper growth, development, and overall health in livestock. It is an essential micronutrient required for various physiological functions in animals.

Medical Applications

Sodium Thiosulfate is utilized in medical treatments, particularly in the treatment of cyanide poisoning. It acts as an antidote by reacting with cyanide ions to form less toxic thiocyanate, aiding in the detoxification process.

Industrial Chemicals

Sodium Thiosulphate is employed as a reducing agent and sulfur source in various industrial chemical processes. It is used in the production of dyes, pharmaceuticals, and organic chemicals, as well as in the manufacture of pulp and paper.

These are just a few examples of the industrial applications of Sodium Thiosulfate. Its versatility, ranging from photography to water treatment, demonstrates its importance in various sectors and its value as a chemical compound in industrial processes.

What is Sodium Thiosulphate used for?

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

  1. Medicine: Sodium thiosulfate 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 Thiosulphate is used to neutralize chlorinated water in applications such as fish tanks, swimming pools, and wastewater treatment facilities.
  3. Leather Tanning: Sodium thiosulfate 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 Thiosulphate 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 Thiosulphate 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 thiosulfate 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 Thiosulphate 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 Thiosulphate in various industries, ranging from medicine and photography to water treatment and metalworking.

Where to buy Sodium Thiosulfate?

If you are looking to buy Sodium Thiosulphate, a reliable option is Vinipul Chemicals Pvt. Ltd., a renowned company and a specialized manufacturer, supplier, and exporter of high-purity Sodium Thiosulfate based in Mumbai, India. As prominent sodium thiosulfate suppliers, we are well-known for our accurate composition, impurity-free chemicals, and adherence to international industry standards. As reliable sodium thiosulfate manufacturers, Vinipul Chemicals Pvt. Ltd. offers products with fine quality, precise required composition, and a long shelf life. You can consider contacting us for your Sodium Thiosulphate requirements, as we are experienced in providing superior products in this field.


The purity level of Sodium Thiosulphate can vary based on the requirement. It is important to source it from a reputable supplier like Vinipul Chemicals Pvt. Ltd. known for high-purity products.

Vinipul Chemicals Pvt. Ltd. offer customization options for Sodium Thiosulphate based on your specific needs. It’s recommended to inquire with Vinipul Chemicals about customization possibilities.

Sodium Thiosulphate should meet relevant quality and safety standards, such as those set by regulatory authorities or industry organizations. Examples include ISO certifications or compliance with pharmacopeial standards.

To ensure quality, it is important to source Sodium Thiosulphate from reputable manufacturers or suppliers such as Vinipul Chemicals Pvt. Ltd. with a track record of delivering high-quality products. Checking for certifications and conducting due diligence is advisable.

Vinipul Chemicals Pvt. Ltd. offer samples for evaluation purposes. It’s best to inquire with us about sample availability and any associated costs.

 The shelf life of Sodium Thiosulphate can vary depending on storage conditions and packaging. It is advisable to follow the storage instructions provided by the supplier.

Vinipul Chemicals Pvt. Ltd. offer Sodium Thiosulphate in various quantities, ranging from small quantities for laboratory use to bulk quantities for industrial applications.

Orders can typically be placed by contacting the supplier directly via their website, email, or phone. The supplier will guide you through the ordering process.

 Accepted payment methods may vary. Common options include bank transfers, credit cards, or other secure online payment systems. It’s best to confirm with us before making payment.

The shipping process may vary depending on your location. The supplier will provide information about shipping options, transit times, and any associated costs.

Yes, Sodium Thiosulphate can be shipped internationally. However, specific regulations and restrictions may apply depending on the destination country. It’s important to check the import/export regulations of the respective countries.

Sodium Thiosulphate should be stored in a cool, dry place away from direct sunlight and incompatible substances. It’s important to follow the supplier’s guidelines for proper storage and handling to maintain its quality and stability.

Market Area

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

Sodium Thiosulphate 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 Thiosulphate in Gulf Countries
Oman, Qatar, Kuwait, Saudi Arabia, Dubai, Bahrain, Iran, United Arab Emirates

Sodium Thiosulphate 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 Thiosulphate 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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