As a leading supplier of tin dioxide materials, we offer two complementary product lines: conventional high-purity tin dioxide (SnO2) powder and ultra-fine SnO2 nanopowder. Whether you require reliable industrial-grade powder or nanoscale material for advanced R&D and high-precision manufacturing, we provide fully traceable products with customizable specifications to match your process requirements.
SnO2 Powder at a Glance
Tin dioxide (SnO2, also known as stannic oxide, tin(IV) oxide, CAS 18282-10-5) is an n-type-wide-band-gap semiconductor (≈3.6eV) with high thermal stability, chemical intertness and excellent optical transparency in the visible range. Its combination of low electrical resistivity, high mechanical hardness and resistance to most acids and alkalis makes it an indispensable functional material across dozens of industries.
Our two product offerings are engineered to serve different scales of applications:
| Product Type | Particle Size | Typical Purity | Key Distinguishing Feature | Best Suited For |
| Conventional SnO2 Powder | 1μm-50μm(customizable) | ≥99%-99.9% | High bulk density, excellent flowability, cost-effective | Industrial ceramic glazes, polishing compounds, glass coatings, catalyst supports, pigment production |
| SnO2 Nanopowder | <100nm-down to 6nm | 99.9%-99.99% | Extremely high specific surface area (SSA 10-30m2/g), enhanced surface reactivity, quantum confinement effects | Gas sensors, lithium-ion battery anodes, transparent conductive films, photocatalysts, optoelectronics, biomedical research |
Both product lines can be supplied in quantities from grams to metric tons, with packaging options including vacuum-sealed bags, plastic drums or custom containers.
Why our SnO2 materials stand out
Tight particle size distribution. Our conventional SnO2 powder is available with D50 values from sub-micron up to 50μm. For nanopowder, we control the average primary particle size precisely between 6nm and 100nm, ensuring batch-to-batch consistency. Independent BET surface area analysis confirms SSA values ranging from 10-30m2/g for our standard nanopowder grade.
High and consistent purity. We supply SnO2 powder in purity grades from ≥99% (2N) up to 99.99% (4N) and 99.999% (5N) upon request. Trace metal impurities ( Fe, Pb, As, Cu, S) are strictly controlled through ICP-MS or ICP-OES analysis, with certificates of analysis provided for every batch.
Excellent thermal and chemical stability. SnO2 melts at 1630℃ and sublimes above 1800℃, making it suitable for high-temperature procesing environments. It is insoluble in water and most organic solvents, and remains stable under both acidic and mild alkaline conditions.
Sustainable and scalable production. Our manufacturing process follows green chemistry principles, with enhanced energy efficiency and minimal waste generation. We maintain ISO-certified quality management systems and are committed to sustainable industrial practices.
Key Applications by Product Type
Conventional SnO2 powder Applications
Ceramic glazes and enamels. SnO2 acts as a high-temperature stabilizer and opacifier in ceramic glazes, providing excellent thermal stability and chemical resistance. It is particularly valued in the production of high-temperature porcelain and decorative glassware.
Glass coatings and anti-scuff agents. As a colloidal tin oxide dispersion or as an additive in coating formulations, SnO2 improves anti-scuff properties on glass surfaces and serves as a passivation agent. It also functions as a potential conductor in specialized glass products.
Catalyst and catalyst carrier. SnO2 exhibits good catalytic performance in organic synthesis and redox reactions. It is widely used as a catalyst support in the fine chemical industry, improving raction selectivity and yield.
Polishing compounds. The hardness and chemical stability of SnO2 make it an effective polishing agent for metals, decorative marble and optical glass surfaces.
Mordant and textile colorant. SnO2 serves as a mordant in textile dyeing processes, enhancing color fastness and uniformity.
SnO2 nanopowder applications
Gas sensors – unmatched sensitivity. SnO2 nanopowder is one of the most extensively studied materials for chemoresistive gas sensing. Its extremely high surface-to-value ratio enables rapid adsorption/desorption of gas molecules, leading to low response time and fast recovery. Recent research demonstrates that SnO2 nanoparticle-based sensors activated by blue micro-LEDs achieve excellent sensitivity, tunable selectivity and micro-watt-level powder consumption. These sensors are capable of detecting reducing gases such as NH3, H2 and C2H5OH with high accuracy, opening new possiblities for electronic nose technologies and portable gas monitoring systems.
Applications include: environmental pollutant detection (NO2, CO, H2S), combustible gas alarms (methane, hydrogen), breath analysis for medical diagnostics, and industrial process monitoring.
Lithium-ion battery anodes-high energy density. SnO2 is a highly promising anode material for next-generation lithium-ion batteries. Its theoretical capacity reaches 782 mAh g-1 , more than double that of conventional graphite anode (372 mAh g-1 ). The nanoscale form of SnO2 addresses the key challenge of volume expansion during lithiation/delithiation cycles: the short lithium diffusion path lengths and enhanced structural flexibility of nanoparticles significantly improve cycling stability compared to micron-sized SnO2. Recent research has demonstrated SnO2 nanoparticles as a class of electrode materials that enable the fabrication of greener and more sustainable batteries of electrical energy storage.
Applications include: high-capacity lithium-ion battery anodes, composite anode materials with carbon matrices, solid-state battery research, and electric vehicle battery development.
Optoelectronics and transparent conductive films. SnO2 nanoparticles are used to produce printable pastes for screen-printing transparent conductive electrodes. The material’s optical transparency in the visible range combined with its electrical conductivity makes it an ideal candidate for touch screens, flat-panel displays and solar cell front contacts.
Photocatalysis and environmental remediation. SnO2 nanopowder exhibits photocatalytic activity under both UV and visible light illumination, enabling the degradation of organic pollutants such as dye contaminants and pesticides. Doping with transition metals (e.g., Zn, Gd, Fe) further enhances its photocatalytic effeciency for hydrogen production and pollutant removal.
Biomedical applications. Emerging research highlights the antibacterial, antioxidant and antifungal activities of SnO2 nanoparticles. The ability of SnO2 to generate reactive oxygen species that disrupt batcterial cell membranes makes it a promising candidate for antimicrobial coatings in medical devices and drug delivery systems.
Anti-static and magnetic coatings. The diamagnetic properties of SnO2 nanoparticles make them suitable for anti-static coatings in electronic component manufacturing. They are also being explored for magnetic resonance imaging applications and data storage devices.
Technical specifications – Customized to your needs
We understand that different applications require different material properties. Our flexible manufacturing capabilities allow us to adjust the following specifications according to customer requirements:
Particle size.Conventional powder:D50 from <1μm to 50μm, with narrow particle size distribution controlled via jet milling or classification. Nanopowder: APS from 6nm to 100nm, characterized by TEM or SEM analysis, with SSA ranging from 10-30m2/g for our standard grade.
Purity grade. 2N (≥99%), 3N (≥99.9%), 4N (≥99.99%) and 5N (≥99.999%) available. Impurity profiles can be tailored for specific applications (e.g., low-alkali grade for electronics, low-transition-metal grade for optical coatings).
Crystal phase. Tetragonal (rutile type) standard; other phases available upon request.
Morphology. Nanoparticle shape: faceted or spherical. Powder morphology can be controlled through synthesis route selection.
Surface treatment. Options include hydrophobic/hydrophilic surface modification, doping with transition metals (Zn, Gd, Fe, etc. ) for enhanced photocatalytic or sensing performance, and carbon coating for battery applications.
Packaging. 25kg plastic drums (standard for industrial powder), 100g-5kg vacuum-sealed bags ( for nanopowder and lab-scale quantities), or custom packaging as requested.
Quality assurance – reliable supply, batch after batch
All our products are supplied with:
- Certificate of Analysis (COA) – including purity, particle size, BET surface area, trace metal analysis, and moisture content.
- Material Safety Data Sheet (MSDS/SDS) – comprehensive handling and storage guidelines.
- Batch traceability – full documentation from raw material source to final product.
- Customized technical data sheets upon request for specific applications.