Sodium thiosulfate(CAS 7772-98-7)
| Purity | Grade | Package | Stock | Price | Quantity |
| 98% | RG | 500G | In Stock | 4 USD
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Applications of 7772-98-7
| Industry | Application | Process Description |
|---|---|---|
| Pharmaceuticals | Antidote | Used to treat cyanide poisoning by reacting with cyanide to form non-toxic thiocyanate, which is excreted from the body |
| Chemical Manufacturing | Analytical Reagent | Employed as a standard solution in titration analysis, particularly in iodometric methods for redox determination |
| Photography | Fixing Agent | Reacts with unexposed silver halides to form soluble complexes, thereby removing unexposed silver salts from film or photographic paper |
| Textiles | Dechlorinating Agent | Removes residual chlorine from textile bleaching processes to prevent fiber degradation |
| Agriculture | Soil Conditioner | Neutralizes heavy metal ions in soil to improve soil quality |
| Environmental Protection | Wastewater Treatment | Removes heavy metal ions—such as mercury and silver—from wastewater streams |
| Laboratories | Synthetic Intermediate | Serves as a precursor in the synthesis of other thiosulfates or as a reducing agent in various organic and inorganic reactions |
| Metal Processing | Metal Surface Treatment | Applied in metal cleaning and passivation to remove surface oxide layers |
| Cleaning Products | Soil-Removal Component | Functions as a reducing agent or stabilizer in certain cleaning formulations |
| Aquaculture | Water Quality Regulator | Removes residual chlorine and heavy metals from aquaculture water to protect aquatic organisms |
Physical and chemical properties of 7772-98-7
Boiling Point |
100°C |
|---|---|
Decomposition |
300 °C |
Density |
1.7 g/cm³ |
Exact Mass |
157.908417 |
Index of Refraction |
INDEX OF REFRACTION: 1.489 ALPHA, 1.508 BETA, 1.536 GAMMA; OPTIC SIGN + |
LogP |
-4.35 (calculated) |
Melting Point |
48.5 °C |
Merck |
14,8694 |
Molecular Formula |
Na2O3S2 |
Molecular Weight |
158.108 |
pH |
6.0-8.5 (25℃, 50mg/mL in H2O) |
PSA |
103.66000 |
Sensitivity |
Hygroscopic |
Solubility |
Solubility in water, g/100ml at 20 °C: 20.9 |
Stability |
Stable. Incompatible with strong acids, strong oxidizing agents, iodine, mercury. |
Storage condition |
2-8°C |
Vapour Pressure |
Vapor pressure at 20 °C: negligible |
Water Solubility |
Soluble in water. Insoluble in alcohol. |
Q&A for CAS 7772-98-7
1. How can I verify product quality?
Every batch of our Chemical Reagents is tested to meet ISO 9001 standards. We provide COA & NMR & SDS Provided with each shipment. Batch COA available for verification, and third-party retesting is supported. A full refund is offered if our data is incorrect.
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3. What if the received product doesn’t meet quality standards?
If your Lab Grade Chemical Reagents do not match the Batch COA available, we will issue a replacement or a full refund upon verification.
4. Are hazardous labels included? How is safe shipping ensured?
Hazardous products are labeled and packaged following international regulations. We provide SDS Provided with all hazardous shipments to ensure safe and compliant transport.
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Yes. Our Lab Supplier team is available to assist with questions about product usage, storage, Lab Grade requirements, applications, and more.
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Yes, samples are available for selected Lab Grade products. Please submit a request to confirm availability and specifications.
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Yes. Items labeled In stock / Ready stock on our website are available for immediate shipment, usually within 1–2 business days. Large packs or custom specifications require lead time confirmation.
9. Can you customize purity or packaging?
Yes. We support customization of Lab Grade purity, packaging size, and special testing requirements. Share your needs and we’ll provide a tailored solution.
10. Is the COA consistent with the shipped batch?
Yes. Batch COA available matches the actual shipment. COAs shown online are for reference or from previous batches.
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Yes. We offer Lab Supplier services for stable batch consistency, pricing agreements, and safety stock for long-term customers to ensure uninterrupted supply.
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Download COA of 7772-98-7
Operate under the ISO 9001 system
