PDF (Powder Diffraction File)

The Powder Diffraction File (PDF) is a comprehensive database that contains X-ray diffraction patterns of thousands of crystalline substances. When scientists analyze a powdered sample, they shine X-rays through it and record how the rays scatter, producing a unique pattern. By comparing this pattern to the PDF, scientists can identify the material’s exact composition and structure. This tool is essential in chemistry, geology, and materials science for identifying unknown substances, ensuring quality control, and researching new materials. The PDF streamlines the process of matching experimental data with known crystalline structures accurately and efficiently.