
Zinc Oxide (ZnO)
Engineered nano-morphologies — spheres, flakes, stars, and snowballs — each tuned via continuous-flow crystallization for a distinct functional profile.
Every material below begins life as a well-characterized functional compound — and is elevated through proprietary particle engineering, surface treatment, and advanced formulation know-how into a private-label material with a distinct, measurable performance edge. Many of our private-label formulations combine several of these base platforms; contact us with your target application and we will propose the right match.

Engineered nano-morphologies — spheres, flakes, stars, and snowballs — each tuned via continuous-flow crystallization for a distinct functional profile.

29 nm nanoplatelets, span 0.9 — our premium layered double hydroxide platform engineered for flame retardancy and optical clarity.

Ultra-fine, sub-5 nm cubic zirconia engineered for refractive-index matching, thermal stability, and oxygen-ion conductivity.

Flake-structured α-NiCo hydroxide engineered for high-capacity, long-cycle-life charge storage electrode materials.

High-coercivity CoFe₂O₄ nanomagnets engineered for magnetic, magneto-optical, and biomedical sensing applications.

Nano-formulated curcumin (~230 nm particle size) engineered to overcome the natural compound's poor water solubility and low absorption.

Ultra-high surface area, tunable-porosity crystalline frameworks engineered for gas storage, separation, and catalytic applications.

High-purity silver nanopowder spanning a controlled 5–150 nm size range, engineered for conductive, antimicrobial, and plasmonic applications.
Zinc oxide is one of the most versatile inorganic compounds in industrial chemistry — but the commodity-grade material sold in bulk markets captures only a fraction of what the chemistry can deliver. At Kotetsu Trade, we source ZnO produced via continuous-flow crystallization and apply our own morphology-control and surface-treatment know-how to unlock four distinct, application-tuned nano-architectures.
| Morphology | Distinct Advantage | Best-Fit Applications |
|---|---|---|
| Nano-Spheres | Highest UV transparency at low loading; minimal light scattering in visible range | Sunscreen, cosmetic base, clear coatings |
| Nano-Flakes | High aspect ratio creates a tortuous-path gas/moisture barrier | Barrier films, anti-corrosion coatings, packaging |
| Nano-Stars | Branched geometry maximizes active surface area & edge sites | Catalysis, gas sensing, photocatalytic coatings |
| Snowballs | Controlled micro-agglomerates for easy dispersion in high-viscosity matrices | Rubber compounding, tire manufacturing, smoke suppression |
Beyond the base morphologies, our proprietary surface-coating and dispersant know-how enables custom ZnO masterbatches and water-based dispersions tailored to a customer's polymer matrix, target loading, and processing temperature window.
Commodity hydrotalcite is typically sold as a coarse anion-exchange additive with a wide, uncontrolled particle-size distribution spanning anywhere from 5 to 28 nm and beyond. Our premium grade is manufactured to a strict 29 nm nanoplatelet target with a narrow span of 0.9 — meaning the vast majority of particles fall within a tight size window rather than a long tail of oversized aggregates. This precision unlocks two premium performance outcomes:
Our formulation know-how goes beyond the base hydrotalcite platform: we combine it with two complementary chemistries into a layered defense system that individually-sourced materials cannot replicate.
The hydrotalcite nanoplatelets absorb heat and release bound water & CO₂ at elevated temperature, cooling the substrate and forming a protective inorganic residue layer.
Ammonium polyphosphate promotes char formation, expanding into an insulating carbonaceous foam that blocks heat and oxygen transfer to the underlying material.
Our nano zinc oxide acts as a catalytic synergist, suppressing smoke density and promoting more complete, cleaner combustion char formation.
Zirconium(IV) dioxide is prized for its high melting point, exceptional thermal stability, and outstanding corrosion resistance. Our sourced grade is engineered down to sub-5 nm cubic-phase spheres with high-resolution TEM-verified crystallinity — a scale that unlocks refractive-index matching for optical clarity applications far beyond the coarser zirconia typically sold as a ceramic filler.
| Formula | ZrO₂ |
| Crystal Phase | Cubic |
| Particle Size | <5 nm (HR-TEM verified) |
| Purity | 98%+ |
| Heavy Metals (ICP) | <5 ppm |
Nickel-cobalt hydroxide is a mixed-metal layered hydroxide engineered as a high-performance charge-storage electrode material. Our α-NiCo(OH)₄ flake-structured grade, produced via controlled aqueous precipitation, delivers an exceptional specific capacity of 4,700 F/g while sustaining more than 20,000 charge/discharge cycles — a combination that positions it well ahead of many commodity electrode precursor materials.
Cobalt-iron oxide (CoFe₂O₄), commonly known as cobalt ferrite, is a magnetic ceramic material valued for its high coercivity, moderate magnetization, and outstanding chemical stability. Our engineered grade — precipitated at 12–25 nm with mixed α-Fe₂O₃ and Co₃O₄ crystal phases — is further validated for magneto-optical performance, with measured Verdet-constant behavior (~10⁵ rad/(T·m)) confirming its suitability for precision magneto-optical sensing.
| Formula | CoFe₂O₄ |
| Crystal Phase | α-Fe₂O₃ and Co₃O₄ |
| Particle Size | 12–25 nm |
| Purity | 98%+ |
Curcumin is the natural polyphenolic compound responsible for turmeric's (Curcuma longa) bright yellow color, long recognized for antioxidant and anti-inflammatory properties. Its central formulation challenge is poor aqueous solubility and correspondingly low bioavailability. Our nano-formulated grade — engineered to a controlled ~230 nm particle size and confirmed by atomic force microscopy — addresses this limitation directly at the particle-engineering level rather than through dosage escalation.
Metal-organic frameworks are a class of crystalline, extraordinarily porous materials formed by coordinating metal ions or clusters — in our sourced grade, copper — with organic linker molecules (benzenedicarboxylate, BDC) into an ordered lattice. The result is a material with an exceptionally high specific surface area (324 m²/g), tunable pore size, and structural diversity that dry-blended adsorbents cannot replicate.
Silver nanopowder consists of cubic-phase silver particles engineered across a controlled 5–150 nm size range. At this scale, silver's already excellent electrical and thermal conductivity is joined by pronounced nanoscale effects — high surface-area-to-volume ratio, enhanced antimicrobial ion release, and plasmonic optical response — that bulk silver simply does not exhibit.