Specification Brand : Alpha Chemicals BulletPoint1 : Fe3O4, also known as magnetite or Iron (II,III) Oxide BulletPoint2 : This comes from a synthetic source and is produced by Rockwood BulletPoint3 : Particle size runs about 0.30 micron BulletPoint4 : Used in welding, pigments, ceramics, along with a lot of other uses BulletPoint5 : We sell bulk for so many different uses, we don't include any specific use instructions BulletPoint6 : Versatile Applications: Perfect for collectors, industrial purposes, educational demonstrations, and DIY projects. BulletPoint7 : Premium Craftsmanship: Expertly designed and finished to showcase tungsten’s unique properties and aesthetic appeal. BulletPoint8 : Warning: Handle sharp edges carefully to avoid injury. Keep away from children Color : Color Coverage : Resealable ExternallyAssignedProductIdentifier1 : 0725410978267 ExternallyAssignedProductIdentifier2 : 725410978267 GradeRating : High Purity Hazmat : 9 IncludedComponents : 1 pcs Tungsten cube ItemForm : Powder ItemName : Black Iron Oxide - Fe3O4 - Synthetic - 20 Pounds ItemPackageDimensions_Height : 10.6934 centimeters ItemPackageDimensions_Length : 1.8034 centimeters ItemPackageDimensions_Width : 10.6934 centimeters ItemPackageQuantity : 30 ItemShape : Ingot ItemTypeKeyword : specialty-non-ferrous-metals-raw-materials Manufacturer : Roto Metals Material : Bismuth Material1 : Bismuth Material2 : Cadmium Material3 : Lead Material4 : Tin Material5 : Indium NumberOfBoxes : 1 NumberOfItems : 1 PartNumber : AM0352 ProductDescription : Shipped in a resealable bag that is sealed for safety and freshness. It includes a tear-off tab for easy opening. Ideal for making magnetic putty/slime. Gloves are recommended when using it since it is a very fine pigment powder. ProductSiteLaunchDate : 2012-07-14T07:00:00.000Z Size : 0.39 inch SupplierDeclaredDgHzRegulation : unknown SupplierDeclaredHasProductIdentifierExemption : 1 UnitCount : 320 UnspscCode : 10000000