3-5mm Sodium Thiosulfate Pentahydrate is widely used in water treatment, photography, mining, medical applications, aquaculture, and industrial dechlorination processes. This article explores the chemical properties, advantages of 3–5mm granule size, application scenarios, purchasing considerations, quality control standards, storage guidelines, and supplier selection strategies.
3-5mm Sodium Thiosulfate Pentahydrate (Na2S2O3·5H2O) is a crystalline inorganic compound widely used as a reducing agent and chlorine neutralizer. The 3–5mm specification refers to its granule size, making it easier to handle, dissolve, and transport compared to fine powder forms.
It appears as colorless or transparent crystals and is highly soluble in water. Due to its strong reducing properties, it efficiently removes residual chlorine and oxidizing agents in industrial processes.
| Property | Specification |
|---|---|
| Chemical Formula | Na₂S₂O₃·5H₂O |
| Molecular Weight | 248.18 g/mol |
| Appearance | Colorless Transparent Crystals |
| Granule Size | 3–5 mm |
| Solubility | Highly Soluble in Water |
| Function | Reducing Agent / Dechlorinating Agent |
The pentahydrate form contains five water molecules, contributing to stability and controlled dissolution speed. This property makes it ideal for water treatment dosing systems.
Granule size significantly impacts operational efficiency in water treatment plants and chemical dosing facilities.
Sodium thiosulfate neutralizes free chlorine and chloramines in municipal water systems and wastewater discharge processes.
Used as a photographic fixer to dissolve unreacted silver halides from film.
Removes chlorine from tap water before fish tank use.
Acts as an antidote for cyanide poisoning and reduces toxicity in certain treatments.
Used in gold extraction processes as a leaching alternative.
| Feature | 3-5mm Granules | Powder Form |
|---|---|---|
| Dust Control | Excellent | Low |
| Dissolution Control | Stable | Fast but uneven |
| Storage Stability | High | Moderate |
| Industrial Suitability | Highly Recommended | Limited |
Manufacturers like V&S ensure strict quality control systems, advanced production lines, and batch testing procedures to meet international standards.
Proper storage prevents caking and maintains granule integrity.
Partnering with professional manufacturers such as V&S ensures consistent supply and competitive pricing for global buyers.
Yes, when handled according to industrial safety standards and proper PPE guidelines.
Typically 12–24 months under proper storage conditions.
Yes, provided it meets required purity standards.
Granules provide better handling safety, storage stability, and controlled dissolution.
With superior handling characteristics, stable dissolution properties, and versatile industrial applications, 3-5mm Sodium Thiosulfate Pentahydrate remains a top choice for water treatment plants, chemical processors, and aquaculture professionals worldwide. Its efficiency in chlorine neutralization and oxidation control ensures compliance with environmental standards while improving operational performance.
If you are looking for a reliable global supplier with stable quality, competitive pricing, and professional export experience, V&S is ready to support your business growth. Contact us today to receive product specifications, quotations, and customized solutions tailored to your industrial needs.
