Video: Physical Form and Appearance of Sodium Thiosulphate
A quick visual reference showing the translucent, monoclinic crystalline shapes and white powder form of high-purity industrial grade Sodium Thiosulphate. Essential viewing for chemical quality assurance, handling parameters, and batch management.
About Sodium Thiosulphate (CAS 10102-17-7)
Sodium Thiosulphate (alternatively searched under the spelling sodium thiosulfate) is a major inorganic reducing agent available globally in premium sodium thiosulfate crystal and fine sodium thiosulfate powder formats. Noted for its signature chemical behaviors, it features a unique structural configuration often studied via the sodium thiosulfate chemical formula $Na_2S_2O_3 \cdot 5H_2O$. DPRJ Universal ranks among the top sodium thiosulfate manufacturers in india and commercial bulk suppliers. We deliver stable industrial and pure grades backed by rigorous quality assurance paperwork, including the official sodium thiosulfate safety data sheet (SDS) and verified Certificate of Analysis (COA).
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Procure industrial-scale batches at the most attractive sodium thiosulfate price and direct factory sodium thiosulphate price in india. Rates vary depending on international chemical trading conditions, but we guarantee premium bulk margins, continuous manufacturing pipelines, and immediate dispatch options.
📩 Get Instant Quote ✉️ Email: [email protected]Technical Specifications
- Chemical Name: Sodium Thiosulphate (Sodium Thiosulfate)
- Purity: 99.0% (Minimum Industrial Grade)
- CAS No.: 10102-17-7 (Pentahydrate) / 7772-98-7 (Anhydrous)
- Appearance: Colorless transparent monoclinic crystals / White powder matrix
- Formula: $Na_2S_2O_3 \cdot 5H_2O$ (Pentahydrate) / $Na_2S_2O_3$ (Anhydrous)
- Molecular Weight: 248.18 g/mol (Pentahydrate) / 158.11 g/mol (Anhydrous)
- Equivalent Weight: 248.18 g/eq (Pentahydrate form in iodometric analytical redox systems)
- Packaging: 50 KGS BAG
- Origin: India
Primary Applications
- Water Treatment Plants: Functions as a highly effective dechlorination compound to safely neutralize residual active chlorine in municipal drinking water, aquaculture setups, and industrial wastewater discharges.
- Photographic Processing & Imaging: Widely employed as a traditional photographic fixing agent to dissolve unexposed silver halide crystals from negatives, famously recognized by its historical sodium thiosulfate common name, 'hypo'.
- Textile & Leather Manufacturing: Applied directly as an active antichlor to clear excess chlorine components remaining after bleach cycles in textile dyeing mills and paper processing lines.
- Laboratory Quantitative Analysis: Acts as a staple volumetric titrant used in standard analytical laboratories for the detailed standardization of sodium thiosulphate and establishing a calibrated normality of sodium thiosulphate in iodometric applications.
- Mining Operations: Acts as an eco-conscious alternative lixiviant or leaching agent to separate precious metals in gold ore extraction circuits.
SKU: ST002
MPN: SODIUM-THIOSULPHATE-DPRJ-002
Category: Chemicals → Inorganic Chemicals → Thiosulfates → Sodium Thiosulphate
Brand: DPRJ Universal
Price Range (Bulk)
₹10 - ₹12 per kg
Price valid until: 31 Dec 2026
Availability: In Stock for Bulk Orders
Customer Rating
⭐ 4.9 / 5
Based on 2,103 verified industrial buyers
“The high crystalline quality of their sodium thiosulfate crystals delivered flawless precision inside our iodometric titration assays and large-scale water dechlorination tanks. Truly a premier manufacturer in India.”
— Verified Industrial Buyer, Water Management Engineering Firm
Shipping & Delivery
Destination: India (Pan-India Logistics Support)
Shipping Cost: Free (Applicable on Bulk Truckload Orders)
Handling Time: 1–2 Days
Transit Time: 2–5 Days
Return Policy
Return Window: 7 Days (for material failing to meet COA purity specifications)
Return Method: Bulk Material Return Freight / Scheduled Pickup
Return Fees: Free Return Logistics (on verified compliance or quality variances)
Frequently Asked Questions
What is the sodium thiosulfate formula and common name?
The standard molecular formula for sodium thiosulfate pentahydrate is $Na_2S_2O_3 \cdot 5H_2O$, while the anhydrous product uses the formula $Na_2S_2O_3$. The material is universally known by its historical sodium thiosulfate common name, 'hypo' (short for sodium hyposulfite), and is also designated as an industrial antichlor compound.
What is the sodium thiosulfate molecular weight and equivalent weight?
The sodium thiosulfate molecular weight measures roughly 248.18 g/mol for the common crystalline pentahydrate material and 158.11 g/mol for the dry anhydrous form. Since its reaction index features an electron transfer valency factor of 1 during typical analytical assays, the sodium thiosulfate equivalent weight matches its molecular mass perfectly at 248.18 g/eq.
What are the primary sodium thiosulfate uses in industry?
Primary industrial sodium thiosulfate uses cross several vital sectors: it eliminates active halogens as a dechlorination agent in water processing systems, works as a classic chemical photographic fixing agent, safely clears bleaching residuals from fabrics, aids in low-impact mining leaching solutions, and serves as a vital benchmark chemical to calculate the exact normality of sodium thiosulphate mixtures.
What is the sodium thiosulfate structure and chemical composition?
The physical sodium thiosulfate structure exhibits a central sulfur core atom linked tetrahedrally to a single terminal sulfur partner and three oxygen components. This asymmetric thiosulfate arrangement produces an unclosed polar chain network carrying negative valencies, which are balanced inside the lattice by electropositive sodium cations.
How is the preparation of sodium thiosulphate carried out?
Commercial preparation of sodium thiosulphate takes place by heating dissolved aqueous sodium sulfite ($Na_2SO_3$) along with solid elemental sulfur at stable boiling conditions. It can also be efficiently generated by pulling industrial sulfur dioxide gas currents directly through hot sodium carbonate or alkaline caustic soda solution streams containing suspended sulfur elements.
What is the process for the standardization of sodium thiosulphate and finding its normality?
The precise standardization of sodium thiosulphate involves conducting an iodometric redox titration. Technicians react a known quantity of a primary oxidant such as potassium iodate ($KIO_3$) with excess acidic potassium iodide to release an exact ratio of free iodine. This iodine concentration is evaluated through slow titration against the reagent solution using a starch complex indicator, confirming the precise sodium thiosulfate normality or standard normality of sodium thiosulphate.
What is the sodium thio sulphate cas no and hs code?
The registered sodium thio sulphate cas no corresponds to 10102-17-7 for the pentahydrate crystal layout and 7772-98-7 for the water-free anhydrous powder. From a commercial trade standpoint, the official national HSN code or international sodium thiosulphate hs code is logged as 28323010.
Is the compound sold as a sodium thiosulfate crystal or powder?
Yes, we manufacture and pack the compound across both physical variants: translucent, high-clarity sodium thiosulfate crystal granules and finely ground white sodium thiosulfate powder batches, satisfying different operational requirements for rapid dissolve cycles or blending lines.
How do I acquire the sodium thiosulfate safety data sheet and lowest price?
Customers can access an updated copy of our sodium thiosulfate safety data sheet (SDS) alongside specific batch analyses by writing to our technical compliance team. To obtain direct wholesale quotes and find the best tier-based sodium thiosulfate price or volume sodium thiosulphate price in india, please submit your target tonnage via our online commercial desk.
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