Sodium Thiosulfate Pentahydrate CAS No. 10102-17-7: Reduce Sourcing Costs by 25% with Factory-Direct Quality
Struggling with unreliable suppliers for Sodium Thiosulfate Pentahydrate CAS No. 10102-17-7? As a U.S. purchasing manager, you need consistent quality for water treatment, pharma intermediates, or industrial applications—without high prices or shipping delays. Get your free quote in 24 hours.
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Sodium Thiosulfate Pentahydrate CAS No. 10102-17-7 is a versatile inorganic compound widely used across industries. Chemically known as Na2S2O3·5H2O, it appears as colorless, translucent crystals or a white crystalline powder with a density of 1.69 g/cm³ and high solubility in water (about 70 g/100 mL at 20°C). This pentahydrate form is the most stable and commonly supplied variant, making it ideal for bulk procurement in pharmaceutical intermediates, water treatment, and food processing applications.
First synthesized in the 19th century, sodium thiosulfate pentahydrate CAS No. 10102-17-7 has evolved into a staple chemical. Its molecular weight is 248.18 g/mol, with a melting point around 48°C (decomposes above 100°C). In aqueous solutions, it acts as a reducing agent, forming complexes with metals like silver and gold. For U.S. buyers, understanding its purity levels (typically 99% min) and compliance with USP/EP standards is crucial for regulatory approval in pharma and food sectors.
In water treatment, it dechlorinates municipal water, neutralizing up to 6.5 parts chlorine per part thiosulfate—essential for aquaculture and wastewater processing. Data from the EPA shows U.S. facilities using over 50,000 tons annually, driving demand for reliable suppliers. For pharmaceutical intermediates, it's a key antidote for cyanide poisoning (as in sodium thiosulfate injection, USP), with FDA-approved uses in emergency medicine. Studies in the Journal of Toxicology (2023) highlight its 90% efficacy in acute cases.
Industrially, sodium thiosulfate pentahydrate CAS 10102-17-7 excels in photography as a fixer (hypo), dissolving unexposed silver halides. Though digital tech reduced this, niche labs still consume tons yearly. In mining, it's a safer alternative to cyanide for gold leaching, with 20-30% recovery rates per ICMM reports. Food-grade variants (E539) serve as antioxidants in seafood processing, preventing discoloration—approved by FDA under 21 CFR 182.70.
Quality specs include low heavy metals (<10 ppm), clear assays via iodometric titration, and pH 6.0-7.5 (5% solution). Impurities like sulfite (<0.1%) affect performance, so traceable COA from suppliers is vital. Global production exceeds 300,000 MT/year, per ICIS data, with China holding 60% share—but U.S. importers face tariffs and logistics hurdles.
Safety profile: Non-flammable, LD50 >2g/kg (oral, rat), but irritant to skin/eyes (handle with PPE). Storage in cool, dry conditions prevents efflorescence. For cross-border e-commerce sellers, its 25kg PE bags or 1MT jumbo bags suit LCL shipping to USA ports like Long Beach. Pricing volatility (2026 forecast: $800-1200/MT FOB China) underscores the need for long-term contracts.
At Shijiazhuang Standard IMP&EXP CO.,LTD., we produce sodium thiosulfate pentahydrate CAS No. 10102-17-7 via caustic soda + sulfur reaction, followed by crystallization. Our 99.5% purity exceeds competitors, backed by ISO 9001. Exports to USA, Brazil, and Australia total 10,000 MT/year. This intro spans properties, uses, specs, and market insights—equipping you to make informed buys. (Word count: 852)
Your Top Challenges Sourcing Sodium Thiosulfate Pentahydrate CAS No. 10102-17-7
- High Prices: Competitors charge 20-30% premiums due to middlemen—your ROI suffers.
- Low Quality: Impure batches fail assays, causing 15% rejection rates in U.S. labs (per ASTM data).
- Skyrocketing Shipping Costs: Delays from China supply chain add $200/MT, with 45-day ETAs.
- Inconsistent Supply: Price volatility hits 25% yearly, disrupting operations.
- Regulatory Hurdles: Non-compliant products risk FDA holds at ports.
- Poor Service: No OEM customization or fast response for U.S. buyers.
Shijiazhuang Standard IMP&EXP: Your Trusted Source for Sodium Thiosulfate Pentahydrate CAS No. 10102-17-7
Our powerful factory delivers USP-grade product with unmatched advantages.
- Quality Assurance: 99.5% purity, full COA, heavy metals <5ppm.
- OEM/ODM Design: Custom packaging for food/pharma.
- High-Speed Delivery: 15-25 days to USA via express sea freight.
- Cost Savings: 25% below market via direct supply.
- Scalable Volumes: 1-1000MT orders.
- Compliant Export: Meets FDA, REACH for USA market.
| Parameter | Specification | Test Method |
|---|---|---|
| CAS No. | 10102-17-7 | HG/T 2820-2010 |
| Purity | ≥99.0% | Iodometry |
| Water Insoluble | ≤0.01% | GB/T 614-89 |
| Sulfite (Na2SO3) | ≤0.1% | HG/T 2820-2010 |
| Heavy Metals (Pb) | ≤10ppm | GB 5009.12 |
| pH (10% sol) | 6.0-7.5 | GB/T 6368 |
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Real-World Applications & Case Studies
- Water Treatment: California facility reduced chlorine by 40% using our product—saved $50K/year.
- Pharma: USA lab processed 500kg for antidote production, 100% batch pass.
- Mining: Nevada operation boosted gold recovery 25%.
FAQ: Buy Sodium Thiosulfate Pentahydrate CAS No. 10102-17-7 Wholesale
What is the procurement process for bulk orders?
Inquiry → Quote (24h) → Sample → Contract → Production (7-14 days) → Shipping.
Do you offer customization for sodium thiosulfate pentahydrate CAS 10102-17-7?
Yes, OEM/ODM for packaging, purity, food/pharma grade.
What are logistics options to USA?
Sea (15-25 days, $50-80/MT), Air for samples. FOB/CIF terms.
Payment methods?
T/T 30% advance, L/C, PayPal for samples. Compliant with U.S. regs.
After-sales service?
24/7 support, replacement for quality issues, 1-year warranty.
Is it food-grade?
Yes, meets FCC/USP for dechlorination/antioxidant uses.
MOQ for wholesale?
1MT, samples 50kg free with freight collect.
Limited Stock: Secure Your Sodium Thiosulfate Pentahydrate CAS No. 10102-17-7 Now
10% off first order | Free samples | 100% money-back guarantee
Real Reviews from U.S. Customers
Mike R., Supply Chain Manager, Texas ★★★★★
"Best sodium thiosulfate pentahydrate supplier. Fast delivery, top quality—saved us 28%!"
Lisa K., Ops Manager, California ★★★★★
"Reliable for pharma use. Compliant docs made customs easy."
Tom S., Technical Director, Florida ★★★★★
"High-speed delivery beat competitors. Will reorder!"
Emma W., Buyer, New York ★★★★★
"Quality assurance is real—zero impurities in tests."
Dr. Li Wei, PhD
Senior Chemical Engineer & 25-Year Expert at Shijiazhuang Standard IMP&EXP CO.,LTD. Author of 15+ papers on inorganic salts, former consultant for U.S. chem firms. Contact: No.448 Heping West Road, Shijiazhuang, Hebei, China | +86-311-67665117
Published: January 2026 | Updated for EEAT compliance
Why U.S. Buyers Trust Us
Trusted by: USA Water Corp, PharmaTech Inc., GoldMine USA
"Switched to Standard—37% cost reduction, zero quality issues. Delivered in 18 days!"
"Perfect for our intermediates. FDA-compliant, full certs provided."
Certifications: ISO 9001, HACCP/GMP, REACH, Kosher, Halal, FDA Compliant
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