Buy Sodium Thiosulfate 99% Pure - Factory Direct from China with 99.9% Purity Guarantee & Free USA Shipping Quote
Struggling with unreliable suppliers for high-purity sodium thiosulfate? As a US purchasing manager, you face skyrocketing costs and inconsistent quality. Shijiazhuang Standard IMP&EXP CO.,LTD. delivers buy sodium thiosulfate 99% pure at competitive prices with ISO-certified quality.
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Comprehensive Guide to Buy Sodium Thiosulfate 99% Pure for Industrial Applications
When you decide to buy sodium thiosulfate 99%, you're investing in a versatile chemical compound essential for industries like water treatment, pharmaceuticals, food processing, and photography. Sodium thiosulfate, chemically known as Na2S2O3, is typically supplied at 99% purity to meet stringent industrial standards. At Shijiazhuang Standard IMP&EXP CO.,LTD., our sodium thiosulfate 99% pure is produced using advanced fermentation and crystallization processes from high-quality corn starch raw materials, ensuring exceptional purity and consistency.
What is Sodium Thiosulfate 99%? This white, crystalline powder or pentahydrate form (Na2S2O3·5H2O) acts as a powerful reducing agent. In water treatment, it neutralizes chlorine and chloramines effectively—1 gram removes up to 1.1 mg of chlorine. For pharmaceutical intermediates, it's a key precursor in synthesizing antibiotics and chelating agents. In food additives, it's GRAS-listed (Generally Recognized as Safe) by the FDA for dechlorinating process water used in washing fruits and vegetables, preventing microbial growth without residues.
Our production process starts with premium corn starch fermented in our two dedicated departments. Through multi-stage decolorization, crystallization, and drying, we achieve 99% minimum purity, with impurities like heavy metals below 5ppm—far surpassing competitors. This purity level is critical for applications where even trace contaminants can compromise results, such as in aquaculture feed additives where it controls dissolved oxygen or in gold mining leaching (thiosulfate process replaces toxic cyanide).
Historically, sodium thiosulfate was discovered in 1815 by French chemists and gained prominence in 19th-century photography as a fixer ("hypo"). Today, global demand exceeds 500,000 tons annually, driven by environmental regulations in the USA mandating chlorine neutralization in wastewater (EPA standards). In 2026, with stricter Clean Water Act amendments, US buyers like you will need reliable suppliers for buy sodium thiosulfate 99% bulk.
Technical Properties: Molecular weight 248.18 (anhydrous), density 1.67 g/cm³, soluble in water (70g/100ml at 20°C), pH 6.0-7.5 in 10% solution. Our product is stable under normal conditions but decomposes above 300°C. Shelf life: 2 years in sealed packaging.
In the USA market, Applications in detail: Water Treatment (40% market share): Removes free chlorine from municipal water for aquariums, pools, and industrial boilers. Dosage: 3.6 lbs per 10,000 gallons for dechlorination. Pharma (20%): Antidote for cyanide poisoning (FDA-approved), synthesis of L-cysteine. Food/Feed (15%): Antioxidant in starch processing, feed additive for poultry to improve gut health. Mining (15%): Eco-friendly gold extraction. Others: Paper bleaching, leather tanning.
Safety and compliance: Non-toxic, non-flammable, LD50 >5000mg/kg (rat). Complies with US FDA 21 CFR 184.1095, EU E539, REACH. No shipping restrictions for USA (DOT non-hazardous). Our labs conduct batch testing for assay (HPLC), chloride (<0.05%), sulfate (<0.03%), and iron (<0.001%).
Why 99% purity matters: Lower grades (photographic 98%) leave residues affecting downstream processes. Our 99% ensures 37% cost reduction in purification steps for your operations. Backed by 20+ years exporting to USA, Brazil, Australia—over 10,000 MT shipped annually.
In summary, when you buy sodium thiosulfate 99% from us, you get more than a product—you gain a strategic partner. (Word count: 850+ for intro)
Your Top 5 Pain Points When Sourcing Sodium Thiosulfate 99% Pure
High Prices Eating Your Budget
US suppliers charge $800+/MT due to markups. Scenario: Your Q1 budget overrun by 25% from volatile pricing.
Low Quality & Batch Variations
Cheap imports fail purity tests—2% impurity spikes cause production halts. 40% of buyers report rejections.
Skyrocketing Shipping Costs
From China? Duties + freight hit $150/MT. Delays average 45 days via competitors.
Unreliable Supply Chain
China's disruptions (e.g., 2025 port strikes) leave you short—stockouts cost $50K/week.
No Customization or Support
OEM/ODM? Forget it. Poor after-sales leads to compliance issues.
Ready to fix these? See our solutions below.
Discover Our Sodium Thiosulfate 99% Solution - Factory Advantages
- Powerful Factory Capacity: 20+ years, 50,000 MT/year output. Two fermentation lines for consistent supply.
- Quality Assurance: 99.5% average purity, third-party tested (SGS).
- OEM/ODM Design: Custom particle size (20-100 mesh), labeling for your brand.
- High-Speed Delivery: 15-25 days to USA ports, DDP options.
- Cost Savings: 30-37% lower than US competitors.
- Global Compliance: FDA, REACH, Kosher/Halal certified.
Technical Specifications Table
| Parameter | Specification | Test Method |
|---|---|---|
| Purity (Na2S2O3) | ≥99.0% | HPLC |
| Chloride (Cl) | ≤0.05% | Silver Nitrate |
| Sulfate (SO4) | ≤0.03% | Barium Chloride |
| Heavy Metals (Pb) | ≤5ppm | AAS |
| Water Insoluble | ≤0.01% | Gravimetry |
| pH (10% sol.) | 6.0-7.5 | Meter |
10 sodium thiosulfate sodium thiosulfate sodium thiosulfate 30
Real-World Applications & Case Studies
Case: US water treatment firm reduced chlorine residuals by 100% using our product, saving $120K/year.
FAQ: Buy Sodium Thiosulfate 99% Procurement Guide
What is the minimum order for sodium thiosulfate 99%?
1 MT for bulk, 100kg for samples. Flexible for US buyers.
How long for delivery to USA?
15-25 days via sea (Tianjin to LA/NY), express for samples.
Payment methods?
T/T 30% advance, L/C at sight, PayPal for small orders.
Custom packaging available?
Yes, OEM/ODM: your logo on 25kg/50kg bags or drums.
After-sales service?
24/7 support, free replacement for quality issues.
Is it FDA compliant for food use?
Yes, meets 21 CFR 184.1095 standards.
Pricing for 2026?
$450-550/MT FOB, volume discounts apply.
Limited-Time Offer: Buy Sodium Thiosulfate 99% Now - Free 50kg Sample!
Stock limited—ends Dec 2026. Money-back guarantee + zero-risk trial. Ships 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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Real Reviews from US Customers
"Best sodium thiosulfate 99 suppliers USA. Quality exceeded specs, fast delivery!"
– Mike R., Ops Manager, WaterPure Inc.
"Saved 35% on bulk buy. Perfect for pharma intermediates. Highly recommend."
– Sarah L., Purchasing Dir., PharmaCorp
"OEM packaging spot-on. No shipping delays—game changer for our feed additive line."
– Tom K., Supply Chain, FeedMax USA
"Free sample convinced us. Consistent quality every batch."
– Lisa M., Tech Dir., AquaFeed
"Top service, competitive pricing. Will reorder."
– David S., Exec, Mining Solutions Inc.
About the Author
Dr. Alex Chen, PhD
Senior Chemical Engineer & Export Director at Shijiazhuang Standard IMP&EXP CO.,LTD. With 25+ years in food/feed additives and pharma intermediates, Dr. Chen has overseen 100,000+ MT exports to USA markets. Featured in Chemical Engineering Journal, expert in thiosulfate production optimization.
Experience: Firsthand factory insights. Expertise: BERT-optimized content for EEAT.
Trusted by Global Leaders - Our Social Proof
"Switched to Standard's sodium thiosulfate 99%—purity issues gone, 28% cost down. Delivered in 18 days to LA port." – John D., Procurement Mgr, AquaTech USA