Sodium Thiosulphate (Thio) Manufacturer,Supplier and Exporter in India
Product Code : EL-CL-12355
Jlab Export is a leading Sodium Thiosulphate (Thio) Manufacturer,and suppliers in India
Sodium Thiosulphate (Thio) (code EL-CL-12355) is Na2S2O3, the reducing salt that laboratories call thio: it is the titrant in iodine titrations and the reactant in the sulphur-precipitation rate experiment. JLab, based in Ambala, India, is the manufacturer.
Specifications
| Parameter | Detail |
|---|---|
| Model No. | JL973/229 |
| Pack size | 500 g |
| Grade | Analytical reagent |
| Documentation | MSDS included |
| Quality check | Each pack is visually inspected before dispatch |
| Pack quantity | Each (sold individually) |
| Minimum order quantity | 10 units |
| Dispatch time | Usually 3–5 working days |
| Product code | EL-CL-12355 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
Titrating Iodine
Run from a burette into iodine solution, thiosulphate reduces the brown iodine to colourless iodide and is itself oxidised to tetrathionate (2S2O3²⁻ + I2 → S4O6²⁻ + 2I⁻). Starch added near the end turns the flask blue-black, and the end point is the drop at which the colour changes to colourless.
The Disappearing Cross
When dilute hydrochloric acid is added, the clear solution slowly turns cloudy as a fine yellow precipitate of sulphur forms. Timing how long a cross drawn under the flask takes to disappear shows how concentration or temperature changes the rate of reaction.
Related Reagents for Thio Experiments
- Iodine Solution N/10 — decinormal iodine solution titrated against thiosulphate.
- Starch Powder — for the blue-black end-point indicator in iodine titrations.
- Hydrochloric Acid Dilute — the acid that precipitates sulphur in the rate experiment.
Volumetric reagents and indicators are grouped in Chemistry Lab.
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Last updated: 29 October 2026
