Magnetite Nanopowder (Fe3O4)
Superparamagnetic magnetite nanopowder for ferrofluid and magnetic-separation applications, supplied from 20 to 100 nm. Small quantities, prototypes and custom made-to-order specifications are welcome.
Magnetite Nanopowder — Grades & Specifications
Superparamagnetic magnetite nanopowder for ferrofluid and magnetic-separation applications, supplied from 20 to 100 nm. The options below are typical; specify your target values in the request form and we will confirm availability, lead time and pricing.
| Material | Magnetite Nanopowder |
|---|---|
| Chemical formula | Fe3O4 |
| CAS number | 1317-61-9 |
| Particle size | 20–100 nm |
| Purity | 99% – 99.999% |
| Morphology | Spherical / faceted, superparamagnetic |
| Appearance | Black powder |
| Typical applications | Pigments & coatings, Automotive manufacturing, Chemical manufacturing, Defense applications |
Applications by Industry
Nanoscale Size Reference
Magnetite Nanopowder (20–100 nm) is far finer than any US mesh/sieve can measure — even the finest standard sieve number (12000 mesh) only resolves down to 1 µm (1,000 nm), still far coarser than the particle sizes on this page. Particle size for true nanopowders is specified directly in nanometers, as in the table above, not by mesh number. For reference, here is how nanometers relate to microns and millimetres:
| Nanometer (nm) | Micron (µm) | mm | Remarks |
|---|---|---|---|
| 1 | 0.001 | 0.000001 | DNA helix width (≈2 nm) |
| 5 | 0.005 | 0.000005 | |
| 10 | 0.01 | 0.00001 | |
| 20 | 0.02 | 0.00002 | |
| 50 | 0.05 | 0.00005 | |
| 100 | 0.1 | 0.0001 | |
| 200 | 0.2 | 0.0002 | |
| 500 | 0.5 | 0.0005 | Mid-range of visible light wavelength (≈400–700 nm) |
| 1,000 | 1 | 0.001 | = finest standard sieve, 12000 mesh |
| 10,000 | 10 | 0.01 | |
| 74,000 | 74 | 0.074 | = 200 mesh, a common bulk-powder sieve grade |
Information Required for Quotation
- Grade / purity (e.g. 99% – 99.999%)
- Particle size / target (nm)
- Quantity
- Application environment
- Required delivery country
Request a Quote or Custom Order
Tell us your grade, particle size and quantity. We typically reply within one business day.
Frequently Asked Questions
What purity / grade options are available for Magnetite Nanopowder?
What particle sizes can you supply for Magnetite Nanopowder?
Can Magnetite Nanopowder be made to custom specifications?
What is the minimum order quantity (MOQ)?
Can you export and ship Magnetite Nanopowder internationally?
Do you provide a Certificate of Analysis (COA) or technical data?
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Request a Quote for Magnetite Nanopowder
Send us your grade, particle size, quantity and application. We will review availability, quotation and lead time. Small quantities, prototypes and custom made-to-order specifications are welcome.