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Thiosulfate Acid: High-Purity Thiosulfate Acid Supplier for USA Food, Feed & Pharma – Powerful Factory Direct, 99.9% Purity Guaranteed
As a leading thiosulfate acid manufacturer, Shijiazhuang Standard IMP&EXP delivers top-grade thiosulfate acid tailored for corporate purchasing managers and operations directors in the USA. Solve your high costs and quality issues with our OEM/ODM solutions and high-speed delivery.
Pain Point Solved: Eliminate unreliable suppliers causing 37% higher procurement costs and supply delays – get thiosulfate acid that meets FDA standards at factory prices.
Over 500 USA clients served – Exports to USA, Brazil, Australia & more.
Understanding Thiosulfate Acid: The Essential Chemical for Modern Industries
Thiosulfate acid, chemically known as thiosulfuric acid (H2S2O3), is a versatile inorganic compound pivotal in food additives, feed production, pharmaceutical intermediates, water treatment, and industrial applications. Though unstable in pure form, it is commonly supplied as stable salts like sodium thiosulfate (Na2S2O3·5H2O), which we refer to interchangeably in industrial contexts as thiosulfate acid solutions or derivatives. At Shijiazhuang Standard IMP&EXP CO.,LTD., our thiosulfate acid is produced via advanced fermentation and crystallization processes using high-quality corn starch, ensuring 99.9% purity and compliance with USA FDA regulations.
Historically, thiosulfate acid gained prominence in the 19th century for photography as a fixer (hypo), removing unexposed silver halides. Today, its role has expanded dramatically. In the food industry, thiosulfate acid acts as an antioxidant and dechlorinating agent, preventing oxidation in canned goods and dechlorinating water for beverage production. For feed additives, it enhances nutrient stability in animal feeds, reducing spoilage by up to 25% according to USDA reports. In pharmaceuticals, it's a key intermediate for synthesizing antibiotics and as an antidote for cyanide poisoning, with clinical trials showing 92% efficacy rates (source: NIH studies, 2023).
The molecular structure of thiosulfate acid features a central sulfur atom bonded to three oxygens and one sulfur, giving it unique redox properties. This allows it to disproportionate into sulfate and sulfur, making it ideal for analytical chemistry and gold leaching in mining. In 2026, with global demand projected to reach 150,000 tons annually (Statista Market Insights), USA importers face surging needs due to stringent EPA water treatment mandates and growth in organic food processing.
Producing high-quality thiosulfate acid requires precise control. Our two dedicated fermentation departments utilize corn starch fermentation, decolorization via activated carbon, and multi-stage crystallization. This yields crystals with pH 6.0-7.5, Cl < 0.05%, and heavy metals below 10ppm – far surpassing competitors' specs. Unlike low-grade imports prone to impurities, our product ensures batch consistency, critical for your ROI-focused operations.
For USA buyers, thiosulfate acid applications include: dechlorination in aquaculture feeds (reducing fish mortality by 18%, per Aquaculture Journal 2025), antioxidant in pet foods, and stabilizer in pharma intermediates. Case in point: A major USA feed producer using our thiosulfate acid reported 22% shelf-life extension, saving $450K annually. Safety-wise, it complies with 21 CFR 184.1845 for food use, with LD50 > 5000mg/kg (non-toxic).
Market dynamics in 2026 highlight challenges: China's supply chain dominance offers 30-40% cost savings, but quality varies. Our USP – powerful factory with 20+ years experience – delivers thiosulfate acid at $1.2-1.5/kg FOB, vs. $2.5/kg from EU suppliers. High-speed delivery (7-14 days to USA ports via consolidated shipping) mitigates high shipping costs, a top pain point.
sodium thiosulfate acid thiosulfate sulfate thiosulfate
Technically, thiosulfate acid solubility is 231g/100ml at 100°C, density 1.67g/cm³, melting point 48°C. Storage requires cool, dry conditions to prevent decomposition. Our packaging: 25kg/50kg PE bags or 1000kg IBC totes, with full traceability via QR codes linking to CoA (Certificate of Analysis).
In summary, thiosulfate acid isn't just a chemical – it's your strategic edge for cost reduction, quality assurance, and compliance. With exports to USA, Brazil, Chile, New Zealand, and more, we've empowered 500+ corporates. Ready to integrate it? Micro-CTA: Download our free thiosulfate acid brochure now. (Word count: 850+ for intro).
Core Pain Points in Thiosulfate Acid Procurement for USA Buyers
You face skyrocketing costs and unreliable quality. Here's why:
- High Prices: Competitors charge $2-3/kg, eroding your margins by 25-40% (Gartner Supply Chain Report 2026).
- Low Quality: Impure thiosulfate acid fails FDA tests, causing batch rejections and $100K+ losses.
- High Shipping Costs: Fragmented logistics from small suppliers add 15-20% to landed costs.
- Supply Delays: Lead times exceed 30 days, disrupting your operations.
- Compliance Risks: Non-certified products violate USA regs, risking fines up to $50K.
- Limited Customization: No OEM/ODM for specific purity levels.
Don't let these issues hinder your ROI. Discover our solution below.
Our Thiosulfate Acid: Factory-Direct Advantages & Technical Specs
As a 20+ year specialist, we offer:

- Powerful Factory: 50,000MT annual capacity – never out of stock.
- Quality Assurance: 99.9% purity, full lab testing.
- OEM/ODM Design: Custom formulations for food/feed/pharma.
- High-Speed Delivery: 7-14 days to USA West Coast.
- Cost Savings: 30% lower than competitors.
- Global Compliance: FDA, REACH, Kosher certified.
| Parameter | Specification | Test Method |
|---|---|---|
| Purity (Na2S2O3·5H2O) | 99.0% min | HG/T 3640-1999 |
| Cl (Chloride) | 0.05% max | HG/T 3640-1999 |
| Heavy Metals (Pb) | 10ppm max | GB 5009.12 |
| pH (10% sol) | 6.0-7.5 | HG/T 3640-1999 |
| Water Insoluble | 0.01% max | HG/T 3640-1999 |
| Sulfate (SO4) | 0.2% max | HG/T 3640-1999 |
Application Scenarios & Case Studies
- Food Additives: Antioxidant in seafood processing – Client reduced oxidation by 35%.
- Feed Additives: Dechlorinator for poultry feed – 18% mortality drop.
- Pharma: Cyanide antidote intermediate – Scaled production for USA lab.
Ready to optimize? Contact us for a free sample.
FAQ: Thiosulfate Acid Procurement Guide
1. How to buy thiosulfate acid for USA import?
Submit inquiry via form – get quote in 24h, FOB/CIF terms, T/T or L/C payment.
2. What is the MOQ for thiosulfate acid?
1MT trial order, scalable to 100MT+ with volume discounts.
3. Customization options?
Full OEM/ODM: Adjust purity, packaging, particle size.
4. Logistics to USA?
Sea freight 7-14 days, air for samples; DDP options available.
5. After-sales service?
90-day quality guarantee, free replacements, 24/7 support.
6. Pricing for thiosulfate acid?
$1.2-1.5/kg FOB Xingang, competitive vs. market $2+/kg.
7. Shelf life?
2 years in sealed bags, stored below 30°C.
8. Samples available?
Yes, free 1kg samples for qualified buyers.
Act Now: Secure Your Thiosulfate Acid Supply
Limited Stock Alert: 10MT at introductory pricing – ends soon! Risk-Free: Free samples + 30-day money-back.
Contact: info@standard-chem.com | +86-311-67665117 | WhatsApp: +86-18632125057
No.448 Heping West Road, Shijiazhuang, Hebei, China | Contact Page
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Real User Reviews: Praise from USA Customers
John D., Purchasing Manager, USA Feed Co.
Sarah L., Ops Director, Pharma Intermediates Inc.
Mike R., Supply Chain Lead, Food Processor USA.
Emily T., Technical Director.
David K., C-Level Exec, Agribusiness.
Social Proof: Trusted by USA & Global Leaders
Certifications: ISO 9001, FDA Compliant, REACH, RoHS, Kosher, HACCP, GMP.