Whether you’re launching a new venture or managing an established operation, many industries rely on Thiourea Dioxide for key chemical processes. No worries—Suneco Chem is here with high-quality, practical solutions tailored to your industrial needs.
With over 20 years of experience, Suneco Chem is a trusted name in the Thiourea Dioxide market. We’re committed to delivering reliable quality and long-term customer satisfaction every step of the way.
Thiourea Dioxide (TDO) is a high-purity, environmentally friendly reducing agent widely used across multiple industries. With a purity level of 99%, it serves as a safe and efficient replacement for sodium hydrosulfite. It is especially valued for its excellent heat stability, low toxicity, non-corrosiveness, and strong reducibility, making it ideal for sensitive industrial processes.
Consistent Quality: Manufactured under strict ISO-certified systems
Environmentally Responsible: Compliant with ROHS, REACH, and global environmental standards
Flexible MOQ & Fast Shipping: We support bulk and small orders with fast turnaround
Custom Solutions: We offer tailored packing, labeling, and formulation
Thiourea Dioxide (Formamidinesulfinic Acid) is a high-performance, environmentally conscious chemical with a broad range of industrial applications. Whether you are in textiles, paper, polymers, or advanced materials, this compound offers the ideal balance of safety, effectiveness, and efficiency.
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Appearance
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Loose white crystalline powder
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Active ingredient content
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≥99%
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Thiourea content
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≤0.1%
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Moisture Content
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≤0.1%
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Sulfate
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≤0.17%
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Lron content
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≤10 ppm
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The China-manufactured Thiourea Dioxide offers exceptional value for industrial users requiring a high-purity, environmentally sound, and stable reducing agent. With enhanced particle uniformity, low impurity levels, and global recognition, this product is ideal for textile, paper, and specialty chemical industries.
Experience: Over a decade of export and industrial manufacturing
R&D Capabilities: Strong technical support and innovation
Global Reach: Exported to over 10 countries with high customer satisfaction
Quality Control: Rigorous testing of pre-production and final batches
Annual Capacity: Large-scale production capacity ensuring fast delivery
Our company supplies High Quality Industrial Grade Barium Chloride Dihydrate, a versatile compound essential in multiple industrial applications. This salt is produced under strict quality controls and conforms to international standards for purity and reliability. With a purity level of 99%, this compound is ideal for use in the chemical, metallurgical, glass, pigment, electronics, and ceramic industries.
You’re in the right place. Suneco Chem, located in Dongying, Shandong, China, is a trusted and professional company specializing in a wide range of industrial chemical products, including Thiourea Dioxide, high-purity chemical reagents, and specialty compounds. We provide comprehensive chemical solutions that can be tailored to meet your specific industrial requirements.
Suneco Chem – the name you can trust.
As a reliable and experienced Thiourea Dioxide manufacturer in China, we invite you to visit our facility and discuss your needs in person. Whether you require small batches for lab use or large-scale industrial quantities, we are always at your service and committed to supporting your operations with consistent quality and competitive pricing.
If Thiourea Dioxide is a critical component in your industrial applications—such as textile processing, paper bleaching, or photographic development—this comprehensive guide will help you make informed procurement decisions.
Thiourea Dioxide is a powerful reducing agent widely appreciated for its high stability, ease of handling, and low toxicity compared to traditional reductants. It finds significant utility in the textile, paper, printing, and photographic industries due to its strong reduction properties and environmental compatibility.
Thiourea Dioxide (CH₄N₂O₂S), also known as Formamidine Sulfinic Acid, is a white to pale yellow crystalline powder with a mild sulfurous odor. It is stable under dry conditions and decomposes slowly in the presence of moisture and heat. With a typical purity of ≥99.0%, it is used as a clean, safe alternative to sodium hydrosulfite and other reducing agents.
Common industries using Thiourea Dioxide include:
Textile dyeing and printing
Paper and pulp bleaching
Photographic chemical processing
Leather treatment
Electronics and polymer synthesis
| Property | Specification |
|---|---|
| Appearance | White to pale yellow powder |
| Chemical Formula | CH₄N₂O₂S |
| Purity | ≥99.0% |
| Solubility | Soluble in water |
| pH (1% solution) | 6.0 – 7.0 |
| Molecular Weight | 108.12 g/mol |
| Decomposition Temp | ~126°C |
| Shelf Life | 12–24 months (dry storage) |
| Packaging | 25 kg bags/drums or customized |
Used for vat dye reduction, discharge printing, and decolorizing dyes.
Offers more stable performance and storage than sodium hydrosulfite.
Applied to bleach recycled paper and remove ink.
Eco-friendlier than chlorine-based agents.
Used as a fixing and bleaching agent.
Stabilizes and recovers silver from photographic films.
Involved in surface treatment, polymer synthesis, and photopolymerization.
Effective in removal of residual hair and decolorizing chromed hides.
| Grade Type | Purity Level | Typical Use |
|---|---|---|
| Analytical Grade | ≥99.5% | Lab applications, photochemistry |
| Industrial Grade | ≥99.0% | Textile, pulp, and paper |
| Technical Grade | ≥98.0% | General chemical manufacturing |
No. Thiourea Dioxide is not corrosive under normal conditions. However:
It reacts with acids to form toxic gases like sulfur dioxide.
Avoid long-term exposure to moisture, which can cause decomposition.
Precautions:
Store in sealed, dry containers.
Avoid contact with oxidizers and acids.
Use stainless steel or inert storage containers.
Thiourea Dioxide is less toxic than many traditional reductants but still requires careful handling.
Safe Handling Guidelines:
Work in a ventilated environment.
Wear gloves, goggles, and dust masks.
Follow MSDS and local regulations for waste disposal.
No, it is not classified as explosive. However, under heat or acid exposure, it can release sulfur dioxide gas and decompose rapidly.
Storage Conditions:
Store below 25°C in dry, well-ventilated areas.
Avoid direct sunlight and heat sources.
| Parameter | Thiourea Dioxide | Sodium Hydrosulfite | Zinc Dust |
|---|---|---|---|
| Stability | High | Low | Moderate |
| Toxicity | Low | High | Moderate |
| Handling | Easy | Requires special care | Risky |
| Environmental Impact | Low | Moderate | High (metal) |
| Applications | Textiles, photo | Textiles, bleaching | Metallurgy |
Thiourea Dioxide is preferred where storage safety, shelf life, and environmental compatibility are priorities.
| Application Area | Required Purity | Regulatory Standards |
|---|---|---|
| Textile Processing | ≥99.0% | OEKO-TEX®, ISO 9001 |
| Photographic Use | ≥99.5% | Technical / Lab Grade Specs |
| Chemical Manufacturing | ≥98.0% | REACH, RoHS, ISO Certified |
Purity and grade
Packaging type (fiber drum, plastic bag)
Bulk order size and logistics
Regulatory documentation (REACH, COA, MSDS)
Proven quality control and lab support
Available COA, TDS, and MSDS
ISO, REACH, or equivalent certifications
Customizable packaging and labeling
Ability to ship globally and offer flexible MOQ
Avoid suppliers lacking documentation or offering unstable substitutes in place of Thiourea Dioxide, especially for textile or photo-sensitive applications.
Identify your specific use: textiles, bleaching, polymerization, etc.
Choose the corresponding purity level.
Ask for COA, MSDS, and technical specs.
Verify compliance with global safety and quality standards.
Conduct small-scale reduction tests.
Confirm pH stability and byproduct control.
Ensure moisture-resistant, well-sealed packaging.
Prefer 25 kg drums or double-layer PE bags for long-term use.
Choose experienced vendors with strong export records.
Confirm production capacity and after-sale service support.
Thiourea Dioxide stands out as an efficient, stable, and environmentally safer reducing agent with wide-ranging industrial applications—from textiles to electronics. Its high purity, ease of handling, and long shelf life make it a preferred substitute for older, more hazardous chemicals like sodium hydrosulfite.
To ensure optimal performance and compliance, it is essential to:
Choose the right grade and purity
Partner with reliable suppliers
Follow strict safety and handling protocols
Whether you’re streamlining dyeing operations, enhancing paper brightness, or ensuring precision in photographic processes, Thiourea Dioxide delivers consistent results with minimal environmental impact—making it a smart, sustainable investment for modern industries.