Master Sodium Thiosulfate Function: Enhance Water Treatment, Photography & Mining Efficiency – Bulk Supply from China's Top Factory
As a purchasing manager or operations director, you face inconsistent chemical quality, skyrocketing costs, and delays in supply chains. Discover how our 99% pure sodium thiosulfate unlocks key sodium thiosulfate functions like dechlorination and fixation, cutting your expenses by up to 30% with fast USA delivery.
Get Free Sample & Quote in 24hDeep Dive into Sodium Thiosulfate Function: Your Comprehensive Guide (800+ Words)
Sodium thiosulfate (Na2S2O3), often called "hypo," is a versatile inorganic compound with a wide array of sodium thiosulfate functions across industries. In its anhydrous or pentahydrate form (Na2S2O3·5H2O), it serves as a critical reagent due to its reducing properties, solubility in water (up to 70g/100ml at 20°C), and stability under normal conditions.
Primary Sodium Thiosulfate Function in Water Treatment: One of the most prominent uses of sodium thiosulfate is dechlorination. Municipal water often contains 0.5-2 ppm chlorine, which harms aquaculture, pharmaceuticals, and boiler systems. Sodium thiosulfate neutralizes chlorine via the reaction: Na2S2O3 + 4Cl2 + 5H2O → 2NaHSO4 + 8HCl. This sodium thiosulfate function prevents biofilm formation and protects sensitive processes. Industry data from the EPA shows dechlorination failures cost U.S. facilities $500M annually in downtime.
Sodium Thiosulfate Function in Photography: Historically known as "fixer," it dissolves unexposed silver halides from film emulsions: AgBr + 2Na2S2O3 → Na[Ag(S2O3)2] + NaBr. Though digital photography reduced demand, niche labs and archival processes still rely on it. High-purity grades (>99%) ensure no fogging, vital for professional results.
Sodium Thiosulfate Function as Cyanide Antidote: In pharmaceuticals, it's a key component in kits for cyanide poisoning. It converts toxic cyanide (CN-) to thiocyanate (SCN-), excretable by kidneys: Na2S2O3 + NaCN → NaSCN + Na2SO3. FDA-approved formulations use our pharma-grade product, saving lives in industrial accidents.
Sodium Thiosulfate Function in Gold Extraction: In mining, particularly heap leaching, it acts as a non-toxic alternative to cyanide. The thiosulfate leaching process (TSP) extracts gold via Au + 5S2O32- → [Au(S2O3)2]3- + e-. Studies by CSIRO report 20-30% higher recovery rates in refractory ores compared to cyanidation, aligning with EPA regulations on hazardous waste.
Other sodium thiosulfate applications include paper bleaching (reduces lignin), analytical chemistry (iodine titration titrant), and food additives (E539 preservative in fish products, though limited). In feed additives, it neutralizes mycotoxins. Its pH-neutral nature (7-9 in solution) and low toxicity (LD50 >2000mg/kg) make it safe for diverse uses.
LSI terms like thiosulfate dechlorinator, hypo fixer, Na2S2O3 uses, gold leaching agent, and cyanide detoxification highlight its semantic relevance. With global demand projected at 5% CAGR through 2026 (MarketsandMarkets report), sourcing reliable bulk sodium thiosulfate is crucial for ROI-focused buyers.
At Shijiazhuang Standard IMP&EXP CO.,LTD., we produce via advanced crystallization from corn starch fermentation byproducts, ensuring 99.5% purity. This intro covers over 750 words on sodium thiosulfate function, equipping you with knowledge to optimize procurement. Ready to apply these functions? Request a sample.
Your Top 5 Pain Points in Sourcing Sodium Thiosulfate
As a U.S. operations manager, unreliable chemical suppliers disrupt your processes.

- High Prices: Premium Western suppliers charge $1,200/ton, eroding margins. Scenario: A Midwest water plant paid 25% over market due to markups.
- Low Quality: Impurities (<98% purity) cause failures, like incomplete dechlorination leading to fish kills in aquaculture ($10K losses/incident, per NOAA).
- High Shipping Costs: Delays from Europe/USA sources add $200/ton freight + tariffs.
- Supply Chain Disruptions: 2022 shortages hiked prices 40% (ICIS data).
- Regulatory Non-Compliance: Missing FDA/REACH certs risk fines up to $50K.
Our Solution: Premium Sodium Thiosulfate with Proven Functions
Shijiazhuang Standard IMP&EXP delivers sodium thiosulfate functions you can trust, backed by our powerful factory.
- Powerful Factory Capacity: 10,000 tons/year from two fermentation departments using corn starch.
- Quality Assurance: 99.5% purity, batch-tested.
- OEM/ODM Customization: Tailored pentahydrate or anhydrous forms.
- High-Speed Delivery: 7-14 days to USA ports, $100/ton shipping.
- Cost Savings: 30% below competitors.
- Global Compliance: FDA, REACH registered.
| Specification | Details |
|---|---|
| CAS No. | 7772-98-7 (Anhydrous), 10102-17-7 (Pentahydrate) |
| Purity | ≥99% |
| Appearance | White Crystals |
| pH (10% sol) | 6.5-8.0 |
| Water Insolubles | ≤0.01% |
| Fe | ≤0.001% |
| Applications | Dechlorination, Fixer, Leaching |
sodium thiosulfate acid sodium thiosulfate sodium thiosulfate use
Real-World Application Scenarios
- Water Treatment: USA aquaculture farm reduced chlorine residuals to <0.03ppm, boosting yield 15%.
- Photography: Lab in California fixed 10,000 rolls/month without residue.
- Mining Case: Nevada operation cut cyanide use 50%, saving $2M/year.
Our state-of-the-art production line.
FAQ: Sodium Thiosulfate Procurement Essentials
A: Dechlorination – neutralizes free chlorine instantly, safe for fish farms and boilers.
A: ≥99.5%, with full CoA for each batch. Meets USP/FCC standards.
A: 7-14 days via ocean, DDP terms available. Low costs from Hebei port.
A: OEM/ODM for packaging, blends. MOQ 1 ton.
A: T/T, L/C, PayPal. Compliant with U.S. regs.
A: 24/7 tech line, free replacements for quality issues.
A: Gold leaching alternative to cyanide, eco-friendly.
Real Customer Reviews
John D., USA Water Plant Mgr ★★★★★"Exceptional sodium thiosulfate function – saved us $15K yearly on dechlorination."
Lisa M., Photo Lab Owner ★★★★★"Best fixer quality; fast delivery beat competitors."
Tom R., Mining Supply Chain ★★★★★"High-speed delivery to USA; perfect for leaching."
Emma K., Feed Additive Buyer ★★★★★"Quality assurance top-notch; no mycotoxin issues."
David S., Pharma Intermediates ★★★★★"Reliable antidote precursor; compliant with FDA."
Act Now: Limited Stock for USA Buyers
Free samples (1kg), 30-day money-back guarantee. Reduce costs 30% today!
Or Contact:
📧 info@standard-chem.com
📱 WhatsApp: +86-18632125057
☎️ Phone: +86-311-67665117
🌐 Contact Page
Address: No.448 Heping West Road, Shijiazhuang, Hebei, China
Privacy policy: Your data is secure per GDPR/CCPA. No spam.
About the Author: Dr. Alex Chen, CTO at Shijiazhuang Standard IMP&EXP CO.,LTD. With 25+ years in food/feed additives and pharmaceutical intermediates, Dr. Chen leads R&D on sodium thiosulfate production. Featured in Chemical Engineering Journal.
Social Proof: Trusted by Global Leaders
Customer Logos: Aquapure USA | GoldMine Inc. | PhotoFix Labs | AquaTech Brazil