Aure Chemical: Your Reliable Source for High-Purity Sodium Thiosulfate Anhydrous (CAS 7772-98-7)
Aure Chemical is a premier global supplier of high-quality Sodium Thiosulfate Anhydrous (Na₂O₃S₂). Identified by its CAS number 7772-98-7, this anhydrous form of Sodium Thiosulfate is a white crystalline powder, highly soluble in water, and prized for its absence of crystalline water, leading to a higher concentration of active chemical by weight compared to its pentahydrate counterpart. It is a powerful reducing agent and finds critical applications across diverse industries, including its historical role as a photographic fixer, its modern use as an efficient dechlorinating agent in water treatment, and its importance in analytical chemistry and specialized industrial processes. Aure Chemical's commitment to excellence ensures that our Sodium Thiosulfate Anhydrous meets the stringent purity and performance requirements for your most demanding applications, guaranteeing consistency and reliability.
Basic Information of Sodium Thiosulfate Anhydrous
Sodium Thiosulfate Anhydrous (CAS No. 7772-98-7) is meticulously produced and rigorously tested to meet stringent quality standards. We ensure exceptional purity and consistent performance, essential for your operations:
| CAS No.: | 7772-98-7 |
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| EC No.: | 231-867-5 |
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| Linear Formula: | Na₂O₃S₂ |
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| Molecular Weight: | 158.11 |
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| Appearance: | Transparent Liquid |
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| Melting point: | 48°C |
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| Density: | 1.01 g/mL at 25 °C |
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| Solubility: | Highly soluble in water. Insoluble in alcohol. |
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| Concentration: | Offers a higher concentration of active Na₂S₂O₃ per unit weight due to the absence of water molecules. |
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| Nature: | Strong reducing agent. Generally stable under normal conditions but can decompose in acidic solutions. |
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| Chemical Structure: |  |
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Our commitment to delivering high-purity Sodium Thiosulfate Anhydrous ensures a reliable and efficient component for your critical processes, particularly where water content is a concern.
Primary Applications of Sodium Thiosulfate Anhydrous
Sodium Thiosulfate Anhydrous's potent reducing capabilities, high purity, and efficient reactivity make it an incredibly valuable and widely used compound with applications across numerous industries:
Photographic Industry (Fixer):
It is extensively used as a fixing agent in both traditional black-and-white and color photographic processes. It dissolves unexposed silver halides from photographic film and paper, stabilizing the image and making it light-fast. The anhydrous form is preferred for some concentrated solutions or dry formulations.
Water Treatment and Dechlorination:
It serves as an efficient dechlorinating agent to neutralize residual chlorine and chloramines in municipal drinking water, wastewater, swimming pools, and industrial process water. This is vital before discharge or when chlorine interferes with other chemical processes, such as in brewing, aquaculture, and pharmaceutical production.
Analytical Chemistry:
Due to its high purity and consistent composition, Sodium Thiosulfate Anhydrous is an essential reducing agent and titrant in iodometric titrations, used to accurately determine the concentration of oxidizing agents in various samples.
Medical and Pharmaceutical Applications:
While often the pentahydrate form is used, Sodium Thiosulfate (including high-purity anhydrous for specific formulations) acts as an antidote for cyanide poisoning, converting cyanide to less toxic thiocyanate. It's also used topically for certain fungal skin conditions.
Gold and Silver Extraction:
In the mining industry, particularly in hydrometallurgy, it is used as a less toxic lixiviant (leaching agent) for the extraction of gold and silver from ores, especially for complex or refractory ores.
Chemical Manufacturing:
It serves as a reducing agent in various chemical synthesis processes and as an intermediate for the production of other sulfur-containing compounds.
Why Choose Aure Chemical for Your Sodium Thiosulfate Anhydrous Supply?
Aure Chemical is dedicated to providing superior chemical solutions and unparalleled customer support. By partnering with us for your Sodium Thiosulfate Anhydrous requirements, you benefit from:
Exceptional Purity & Concentrated Form: Our Sodium Thiosulfate Anhydrous is manufactured to stringent purity specifications, offering a higher active chemical concentration per unit weight, which is crucial for precise formulations and efficient processes.
Reliable Global Supply Chain: We maintain a robust and efficient supply network, guaranteeing timely and secure delivery of this essential chemical to your facilities worldwide, adhering to all strict safety and regulatory standards.
Expert Technical Support: Our team of experienced chemists and specialists is readily available to offer comprehensive guidance on product application, safe handling procedures, and optimal storage conditions for Sodium Thiosulfate Anhydrous.
Commitment to Quality & Safety: We adhere to the highest industry standards for quality management, safety, and environmental responsibility across all our operations, ensuring peace of mind for our clients.
Choose Aure Chemical for a trustworthy and dependable supply of high-quality Sodium Thiosulfate Anhydrous. We're ready to support your most demanding and innovative industrial processes.
