Anonymous
Anonymous asked in Science & MathematicsEngineering · 7 years ago

how to make magnetic fingerprint powder?

i really wan't to know how to make magnetic fingerprint powder because i want to

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  • 7 years ago
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    magnetic powder would have to be very fine iron particles, probably iron oxide, and fingerprint powder is usually finer than that and having magnetic powder seem pretty pointless - any reason other than "wan't" to.

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