Materials

What are Whitepages?

Whitepages refer to documents that may be downloaded and printed on any available printer. These documents are saved as PDF files. This enables you to view them as they were created without having correct fonts, special applications, or operating systems.

To print out these documents, right-click on the filename and choose "save as..." Once you save the document to your computer, you may open it in Adobe Acrobat Reader, a free PDF reader.

Click here to download Acrobat.

Four Primary Forms

Iron oxide is available in four primary forms, each with distinct properties and applications.

Maghemite

Maghemite is an Iron(III) oxide analyogus to rust having the chemical formula Fe2O3. It is a ferro magnetic oxide has a spinel structure and is commonly used in magnetic tape, for example in the magnetic layer of audio tape, floppy disk, digital tape etc. The particles can be magnetised to represent data. MICR (Magnetic Ink Character Recognition) also uses iron(III, II) oxide compounds, suspended in an ink which can be read by special scanning hardware. NanoChemonics can synthetically produce a variety of sizes and shapes of particles having transparent characteristics. Particles are generally brown and are stable in air.