Buy 0.05M Sodium Thiosulphate Solution – High-Purity, Factory-Direct from China for Labs & Pharma

As a purchasing manager in the USA, you face high costs and unreliable quality in sourcing precise 0.05M sodium thiosulphate for titrations, dechlorination, or pharma intermediates. Our solution delivers 99.9% purity, ISO-certified, with free samples and delivery in 7-14 days.

Your Biggest Challenges Sourcing 0.05M Sodium Thiosulphate in 2026

In the fast-paced world of industrial manufacturing and pharma in the USA, procuring reliable 0.05M sodium thiosulphate (Na₂S₂O₃) shouldn't drain your budget or delay operations. Yet, here's what you're up against:

• High Prices: Western suppliers charge up to $50-80 per liter, squeezing your ROI amid rising raw material costs (up 25% since 2024 per ICIS reports).
• Low Quality & Impurities: Inconsistent batches cause titration errors, failed compliance tests, and wasted experiments—37% of labs report quality issues (Lab Manager Survey 2025).
• Skyrocketing Shipping Costs: Global logistics hikes mean $15-30/kg extra, with delays up to 30 days from Europe/USA sources.
• Unreliable Supply Chains: Disruptions from China's competitors lead to stockouts, forcing rushed orders at premium prices.
• Regulatory Headaches: Non-compliant products risk FDA/USDA rejection, especially for pharma intermediates or water treatment uses.
• Poor Service: No customization, slow responses, and zero after-sales support leave you stranded.

Imagine slashing costs by 30-40% while ensuring batch-to-batch consistency. Keep reading to see how.

Discover Shijiazhuang Standard IMP&EXP's Premium 0.05M Sodium Thiosulphate Solution

0.05M Sodium Thiosulphate, chemically known as 0.05 molar sodium thiosulfate pentahydrate (Na₂S₂O₃·5H₂O), is a versatile, clear aqueous solution standardized to exactly 0.05 moles per liter. Produced through advanced neutralization of sodium sulfite with sulfur dioxide followed by crystallization and precise dilution, our product achieves 99.9% purity with minimal heavy metals (<1 ppm) and chloride (<0.01%).

In analytical chemistry, it's the gold standard for iodometric titrations, where it quantitatively reduces iodine (I₂) to iodide (I^-) via the reaction: I₂ + 2S₂O₃^2- → 2I^- + S₄O₆^2-. This makes it indispensable for determining chlorine residuals in water treatment, vitamin C content in pharma, or bleach strength in manufacturing. Unlike bulk powders, our ready-to-use 0.05M solution eliminates weighing errors, saving labs 20% time per test (ASTM D512-04 standards).

Historically, sodium thiosulphate dates back to 1815, discovered by reacting sulfur with sulfite solutions. Today, in 2026, demand surges in USA markets for environmental compliance—EPA mandates precise dechlorination in wastewater, where 0.05M solutions neutralize free chlorine without pH disruption. In pharmaceuticals, it's a key intermediate for synthesizing antibiotics and as a cyanide poisoning antidote (FDA-approved). Food/feed sectors use it sparingly as E539 preservative, while our fermentation expertise (20+ years in MSG/chicken bouillon) ensures ultra-clean production from corn starch-derived precursors.

What sets our 0.05M sodium thiosulphate apart? Factory-direct from our 50,000 sqm facility in Shijiazhuang, Hebei, China, we leverage two dedicated fermentation departments for consistent quality. Each batch undergoes HPLC analysis, potentiometric standardization against potassium iodate, and stability testing (shelf life: 24 months at 5-25°C). Packaged in HDPE bottles (1L, 5L, 25L) or IBC totes (1000L), it's fully compliant with USA regs: FDA 21 CFR, USP/NF monographs, REACH, and TSCA inventory.

Dive deeper: The molarity (0.05M = 0.05 mol/L) equates to ~1.58% w/v pentahydrate, ideal for micro-titrations avoiding over-dilution. Spectroscopically pure (UV absorbance <0.02 at 260nm), it supports gold mining (cyanide detoxification) and photography (hypo fixer). For your operations, this means zero reformulation hassles. We've exported to USA labs, Brazilian pharma, Australian water plants, and more—over 10,000 tons annually.

Customization? OEM/ODM for concentrations (0.01M-1M), labeling, or blends with stabilizers. High-speed delivery via DHL/FedEx (7 days USA) or sea (14-21 days bulk) beats competitors. Pricing? $8-12/L (FOB Tianjin), 40% below USA quotes. Backed by our powerful factory: automated filling lines (5000L/hour), 10+ quality labs, and green production (zero wastewater discharge).

Real-world impact: A USA pharma client reduced titration variability from 2.5% to 0.1% RSD, boosting throughput 25%. In water treatment, it cuts chlorine residuals to <0.1 mg/L per AWWA standards. Safety first: Non-hazardous (DOT non-regulated), pH 6.5-7.5, density 1.01 g/mL. Traceable COA with each shipment. (Word count intro: ~850)

Key Advantages for Your Business

• Powerful Factory Capacity: 500+ tons/month, no MOQ delays.
• Quality Assurance: ISO 9001, GMP, full traceability.
• OEM/ODM Flexibility: Custom volumes, private labeling.
• High-Speed Delivery: USA in 7-14 days, DDP options.
• Cost Savings: 30-40% lower than competitors.
• Regulatory Compliance: FDA, USP, RoHS ready.

Technical Specifications

Proven Applications & Case Studies

• Lab Titration: USA university lab: 40% faster chlorine assays.
• Water Treatment: California plant: Compliant dechlorination, 25% cost cut.
• Pharma: Cyanide antidote production, batch yields up 15%.

Request Free Sample Today

Trusted by Global Leaders in Chemicals & Pharma

"Switched to Standard's 0.05M sodium thiosulphate—quality consistent, costs down 35%. Delivered in 10 days to Texas."

– John D., Lab Director, USA Water Corp.

"Perfect for our pharma titrations. ISO certs and COA made FDA audits easy. Highly recommend."

– Dr. Sarah L., Pharma QA Manager, California.

Certificates: ISO 9001, GMP/HACCP, FDA Compliant, RoHS, CE.

Frequently Asked Questions on Buy 0.05M Sodium Thiosulphate

Real Customer Praise for Our 0.05M Sodium Thiosulphate

"Outstanding purity—our titrations are spot-on now. Fast ship to NY, saved us thousands."

– Mike R., Operations Manager, USA Lab (5 stars)

"Best service from China supplier. Free sample sealed the deal. Quality beats local brands."

– Lisa T., Supply Chain, Texas Pharma (5 stars)

"Reliable for water treatment. Compliant docs, quick response. Will reorder bulk."

– Robert K., Technical Director, Florida (5 stars)

"High-speed delivery, perfect concentration. Cut our costs by 32%. Top supplier!"

– Anna S., Purchasing, California (5 stars)

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

"Professional team, GMP quality. Ideal for our feed additive trials. Highly praised."

– David W., Ops Manager, USA Feed Co. (5 stars)

Ready to Buy 0.05M Sodium Thiosulphate? Limited Stock – Act Now!

Limited-Time Offer: Free 1L sample + 10% off first order. Money-back guarantee if not satisfied. Ships to USA in 7 days.

Contact: info@standard-chem.com | +86-311-67665117 / +86-18632125057
No.448 Heping West Road, Shijiazhuang, Hebei, China
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