50.9 MB (3.4 MB compressed)
3545 x 5020 pixels
30.0 x 42.4 cm ⏐ 11.8 x 16.7 in (300dpi)
DR. JEREMY BURGESS / SCIENCE PHOTO LIBRARY DR. JEREMY BURGESS / SCIENCE PHOTO LIBRARY
Scanning electron micrograph (SEM) of cubic crystals of BDH Analar (analytical reagent) sodium chloride (NaCl), or pure common salt, carefully grown by recrystallisation from a solution of NaCl in distilled water. The cubic crystal consists of an ionic lattice of Sodium (Na) and Chlorine (Cl) ions, where the repeating units of the lattice are positively and negatively charged respectively. Ionic crystals tend to be hard and brittle, due to the strong electrostatic forces between the constituent ions. Magnification: X200 at 10x8inch size, X29 at 35mm size, X55 at 6x7cm size.
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