What is Titanium Suboxide?
Titanium Suboxide
Titanium Suboxide is a Ti4O7 Magneli-phase conductive ceramic powder for conductive, electrochemical, and high-opacity black-pigment screens.
Technical owner: Aurexene Materials Engineering Team · Last updated: 2026-07-26
Ti suboxideTi4O7
What It Is Not
- Titanium Suboxide is an oxygen-deficient titanium-oxide family, not TiO2 titanium dioxide or TiN titanium nitride.
When Not to Use It
- Do not use Titanium Suboxide when stoichiometric TiO2 behavior, electrical insulation, or a light-colored oxide is required.
Intrinsic Screening Summary
- Identity screen
- Tetratitanium heptoxide (Ti4O7), Magneli-phase titanium suboxide; Rutile-related crystal structure with crystallographic shear planes; blue-black fine powder
- Intrinsic feature
- Ordered oxygen vacancies and mixed Ti3+/Ti4+ valence states create a partially filled d-band that supports metallic-like conductivity; confirm performance in the final system.
- Material-level integration
- Disperse in water or organic media with appropriate dispersants and surfactants. Maintain an inert or vacuum atmosphere above 600 C to limit re-oxidation to TiO2. Use when evaluating Conductive Materials / Optical Black Coatings / Energy Storage formulations or systems.
Application Fit
Material Identity & Specification Status
Approved values for CAS / identity are not published; confirm them during quotation or sample review.
| Property | Value |
|---|---|
| Composition | Tetratitanium heptoxide (Ti4O7), Magneli-phase titanium suboxide |
| Particle size | Mean particle size 1-3 um |
| Morphology | Rutile-related crystal structure with crystallographic shear planes; blue-black fine powder |
| Density | 4.3 g/cm3 |
| Purity | Ti4O7 >=92% |
| Packaging | Inner PE/PVC liner with outer kraft-paper bag or equivalent |
| Storage | Store cool and dry in tightly sealed containers; protect from moisture |
Why It Works
| Structure | Function | Mechanism |
|---|---|---|
| Ti4O7 Magneli phase with rutile-related crystallographic shear planes | Conductive ceramic oxide and high-opacity black inorganic pigment. | Ordered oxygen vacancies and mixed Ti3+/Ti4+ valence states create a partially filled d-band that supports metallic-like conductivity; confirm performance in the final system. |
Technical Guides
| Technical Guide | Summary |
|---|---|
| Accelerated Electrode-Life Testing and Its Limits for Predicting Field Durability | Accelerated Electrode-Life Testing and Its Limits for Predicting Field Durability — a method-conditioned engineering guide for Electrochemical Water Treatment covering structure-function behavior at the material, interface, and finished-system boundary, process limits, validation, and qualification boundaries. |
| Coating Delamination, Substrate Attack, Contact Loss, and Resistance Growth | Coating Delamination, Substrate Attack, Contact Loss, and Resistance Growth — a method-conditioned engineering guide for Electrochemical Water Treatment covering structure-function behavior at the material, interface, and finished-system boundary, process limits, validation, and qualification boundaries. |
| Conditioning and Operating Electrodes Across Current Density, Flow, pH, Conductivity, and Temperature | Conditioning and Operating Electrodes Across Current Density, Flow, pH, Conductivity, and Temperature — a method-conditioned engineering guide for Electrochemical Water Treatment covering structure-function behavior at the material, interface, and finished-system boundary, process limits, validation, and qualification boundaries. |
| Conductivity, Overpotential, Surface Chemistry, and Electrode Stability Tradeoffs | Conductivity, Overpotential, Surface Chemistry, and Electrode Stability Tradeoffs — a method-conditioned engineering guide for Electrochemical Water Treatment covering structure-function behavior at the material, interface, and finished-system boundary, process limits, validation, and qualification boundaries. |
| Controlling Electrode Thickness, Porosity, Contact, Current Collector, and Cell Geometry | Controlling Electrode Thickness, Porosity, Contact, Current Collector, and Cell Geometry — a method-conditioned engineering guide for Electrochemical Water Treatment covering structure-function behavior at the material, interface, and finished-system boundary, process limits, validation, and qualification boundaries. |
Documents & Inquiry
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Technical Data Sheet
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Safety Data Sheet
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Related resources
Grade, Sample & Qualification Support
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