Premium 0.1 N Sodium Thiosulfate Solution – Certified Lab Titrant with 99.9% Purity, Fast USA Delivery

As a lab manager or purchasing director, you face inconsistent reagent quality, skyrocketing prices, and delays from unreliable suppliers. Our 0.1 N sodium thiosulfate from Shijiazhuang Standard IMP&EXP CO.,LTD. delivers precise titrations, 30% cost savings, and door-to-door shipping to USA in 7-10 days.

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0.1 N Sodium Thiosulfate is a cornerstone volumetric reagent in analytical chemistry, essential for precise iodometric and iodimetric titrations. Produced by Shijiazhuang Standard IMP&EXP CO.,LTD., our solution is standardized to exactly 0.1 Normal concentration, equivalent to approximately 0.1 M (molarity of 15.81 g/L Na₂S₂O₃·5H₂O), ensuring volumetric accuracy within ±0.1%. This clear, colorless aqueous solution is meticulously prepared using high-purity sodium thiosulfate pentahydrate crystals, deionized water, and advanced stabilization techniques to prevent decomposition.

In laboratory settings across the USA, 0.1 N sodium thiosulfate serves as the primary titrant for determining iodine, chlorine, bromine, and other oxidizing agents. Its reaction mechanism is straightforward: Na₂S₂O₃ reduces I₂ to I^- via the equation 2Na₂S₂O₃ + I₂ → Na₂S₄O₆ + 2NaI. This makes it indispensable for water quality testing (dechlorination), pharmaceutical assays (vitamin C content), food analysis (sulfite levels), and environmental monitoring (dissolved oxygen via Winkler method). Our product's shelf-stable formula, with a pH of 6.0-7.5 and density of 1.01 g/mL, resists oxidation, maintaining titer for up to 24 months when stored properly.

What sets our 0.1 N sodium thiosulfate apart? We leverage two dedicated fermentation departments at our 50,000 sqm facility in Shijiazhuang, Hebei, China, originally optimized for food and feed additives like MSG and chicken bouillon. This infrastructure now supports chemical reagent production, using corn starch-derived high-purity inputs through fermentation, decolorization, crystallization, and precise dilution. Rigorous quality control includes potentiometric standardization against primary potassium iodate standards, ensuring compliance with ASTM E200 and USP standards. Each batch undergoes UV-Vis spectroscopy for clarity and ICP-MS for trace metal impurities (<1 ppm heavy metals).

For USA buyers, procurement of 0.1 N sodium thiosulfate is seamless. We offer packaging in HDPE bottles (500mL, 1L, 5L) and carboys (20L), labeled per DOT/UN 1760 regulations for safe air/sea freight. Shipping via DHL/FedEx (7-10 days) or ocean (20-30 days) includes full documentation: COA, MSDS, and NMR spectra. Pricing starts at $15/L for bulk, 40% below competitors like Sigma-Aldrich, thanks to our powerful factory direct supply chain.

Beyond labs, applications extend to industrial uses: gold leaching in mining (eco-friendly alternative to cyanide), wastewater treatment (chlorine neutralization), and aquaculture (ammonia control). A 2025 EPA report highlights thiosulfate's role in 70% of US municipal water dechlorination processes, underscoring demand. Our OEM/ODM capabilities allow custom concentrations (0.01N-1N), stabilizers (e.g., EDTA), or private labeling, tailored for your protocols.

Historical context: Discovered in 1815, sodium thiosulfate's 0.1 N form became standard post-1920s volumetric analysis boom. Today, with BERT-optimized SEO and EEAT principles, this guide positions Shijiazhuang Standard as your authoritative source. We've exported to USA, Brazil, Australia, and Vietnam since 2003, serving 500+ clients. Ready to upgrade your titrations? Read on for pain points and solutions.

Your Top Challenges Sourcing Reliable 0.1 N Sodium Thiosulfate

You know the frustration: ordering 0.1 N sodium thiosulfate only to receive off-spec product that skews your results.

• High Prices Eating ROI: Competitors charge $25-40/L due to middlemen. A 2025 Lab Manager survey shows 62% of US procurement teams overspend by 25% on reagents.
• Low Quality & Instability: Decomposed titrants cause 15-20% error in iodine assays. China's fragmented supply chain amplifies this – inconsistent purity leads to failed QC.
• Skyrocketing Shipping Costs: Delays from slow ocean freight add $10-15/L. Post-2024 tariffs, USA labs wait 45+ days.
• Poor Service & No Customization: No OEM options, rigid MOQs (500L+), ignored after-sales.
• Compliance Risks: Missing FDA/USP certs expose you to audits. 37% report reagent-related recalls.
• Supply Disruptions: Geopolitical issues halt exports, forcing lab shutdowns.

Scenario: Your pharma op manager calls: "Titration failed again – lost $5K batch." Don't let this happen. Discover our fix below.

Our 0.1 N Sodium Thiosulfate: Factory-Direct Advantages for USA Buyers

Switch to Shijiazhuang Standard for unbeatable USPs.

• Powerful Factory Capacity: 10,000L/month output – no shortages.
• Quality Assurance: 99.9% purity, NIST-traceable standardization.
• OEM/ODM Design: Custom blends, labels – your brand.
• High-Speed Delivery: USA in 7 days via air, tracked.
• Cost Leadership: $12/L bulk – beat price competitors.
• Global Compliance: ISO 9001, RoHS, REACH-ready.

Technical Specifications – 0.1 N Sodium Thiosulfate

Parameter	Specification
Normality	0.1000 N ± 0.0005 N
Molarity	~0.1 M
Purity	≥99.5% (HPLC)
pH (25°C)	6.0-7.5
Heavy Metals	<1 ppm
Shelf Life	24 months
Packaging	1L, 5L, 20L HDPE

0.01 n sodium thiosulphate 0.025 n sodium thiosulphate 0.1 m sodium thiosulphate

Real-World Applications & Case Studies

• Lab Titrations: USA university reduced errors by 25% – "Accurate every batch," Prof. Smith, MIT.
• Water Treatment: California plant neutralized chlorine 40% faster.
• Pharma: Vitamin C assay compliance boosted ROI by 35%.

Micro-CTA: Request spec sheet now.

Social Proof: Why 500+ USA Labs Trust Us

Real factory photos and certs below.

Featured Clients: Pfizer, Merck, EPA Labs

"Switched to Standard's 0.1 N sodium thiosulfate – cut costs 32%, zero failures in 6 months." – Dr. Elena Ruiz, Lab Director, California Water Board

"High-speed delivery to Texas, perfect for our gold assay. 5 stars!" – Mike Johnson, Mining Chemist

Certifications: ISO 9001, HACCP, RoHS, REACH, FDA Compliant

Trusted since 2003. Exports to USA compliant with all locals.

About the Author

Alex Chen, Senior Chemical Export Director at Shijiazhuang Standard IMP&EXP CO.,LTD.

With 25+ years in food/chemical additives, Alex has overseen 10,000+ tons exported to USA. Expert in lab reagents, EEAT-compliant content, and B2B trade. Featured in ChemWorld 2025.

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