Alpha Chemicals Synthetic Black Iron Oxide Fertilizers, 1 lb with Fine Texture for Easy Mixing
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$14.99at WalmartChecked 1 h ago
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Synthetic Fe3O4 Black Iron Oxide from Alpha Chemicals has a wide variety of uses in the lab, science classroom, workshop and elsewhere. It adds pigment to clay and can also be used to make magnetic putty or slime for fun educational demonstrations. Other applications include making ceramics and in welding. This synthetic black iron oxide has a very fine texture for easy mixing with other substances. It comes in a 1-lb resealable foil pouch for convenient storage.