Lab Reagent
✅ In Stock
🚢 Export Ready
Sodium Thiosulfate
CAS: 7772-98-7
Formula: Na₂S₂O₃
MW: 158.11 g/mol
HSN: 2832.30
Sodium Thiosulfate in Technical/99%/LR/AR grades. Pentahydrate form.
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Product Specifications
| Product Name | Sodium Thiosulfate |
| CAS Number | 7772-98-7 |
| Molecular Formula | Na₂S₂O₃ |
| Molecular Weight | 158.11 g/mol |
| Grade / Purity | Technical/99%/LR/AR |
| Appearance | White crystalline solid |
| Density | 1667 kg/m³ |
| Melting Point | 48°C (pent.) |
| Flash Point | None |
| Solubility | 70g/100ml water |
| HSN Code | 2832.30 |
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Safety Data Sheet (MSDS / SDS)
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Hazard Classification
Non-hazardous
| Signal Word | Warning / Non-hazardous |
| GHS Classification | Non-hazardous |
| Storage | Store in cool, dry, well-ventilated area. Keep away from heat and ignition sources. |
| PPE Required | Safety goggles, chemical-resistant gloves, lab coat |
| First Aid — Eyes | Rinse with water for 15 minutes. Seek medical attention. |
| First Aid — Skin | Wash with soap and water. Remove contaminated clothing. |
| First Aid — Ingestion | Do not induce vomiting. Seek immediate medical attention. |
| Disposal | Dispose as per local regulations (Class 3 waste if flammable) |
📌 Full GHS 16-section Safety Data Sheet available on request. Contact: admin@fertilizerindia.com or WhatsApp +91-7507006931
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Technical Data Sheet (TDS)
| Product Name | Sodium Thiosulfate |
| Chemical Name | Sodium hyposulfite |
| Molecular Formula | Na₂S₂O₃ |
| Molecular Weight | 158.11 g/mol |
| Available Grades | Technical/99%/LR/AR |
| Appearance | White crystalline solid |
| Density | 1667 kg/m³ |
| Flash Point | None |
| Solubility | 70g/100ml water |
| Packaging | 25kg HDPE drums / 200L barrels / IBC totes / bulk tankers |
| Storage Conditions | Cool, dry place. Keep container tightly closed. |
| Shelf Life | 2 years from manufacturing date |
📌 Detailed TDS with full analytical specifications available on request.
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Certificate of Analysis (COA)
| Parameter | Specification |
| Assay / Purity | Technical/99%/LR/AR |
| Appearance | White crystalline solid |
| Density @ 20°C | 1667 kg/m³ |
| Solubility | 70g/100ml water |
| Water Content | As per grade specification |
| Heavy Metals | Complies with specification |
| Testing Method | In-house QC lab + third-party verification available |
📌 Batch-specific COA issued with every shipment. Request via RFQ form or WhatsApp.
⚙️ Applications & Uses
Photographic fixerTitration (iodometric)DechlorinationPharmaceutical antidoteAnalytical chemistry
🏭 Industries Served
PhotographyResearchWater TreatmentPharmaceutical
🏷️ Synonyms & Other Names
Sodium hyposulfite · Hypo · Na2S2O3·5H2O · Sodium thiosulphate
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