StudenTek™ Products

For many classroom and teaching applications, one does not need the large single crystal NaCl that is needed for the conduct of fine scientific research. When our production facility produces (by cleaving) the large single crystals that are used by researchers, a reasonable amount of "scrap" or "off-cuts" are created. They really do have limited application for those conducting fine scientific research into the structure of thin film coatings and the epitaxial growth of materials on crystalline substrates. But for many classroom applications, these "off-cuts" are just fine, not to mention the much lower price. These "off-cuts" are of the same high quality NaCl as are the larger research grade single crystals, however they are in smaller pieces. Yet they are certainly large enough to demonstrate the cleaving characteristics of ionic salt crystals and they are also large enough to demonstrate certain dissolution experiments (e.g. development of etch pits).

The expected range of single crystal sizes would be 5 to 30 mm. The crystals are packed loose in a bulk bottle and as a result of transport from SPI to you, some amount of "fines" could be generated. This is perfectly normal and expected and the fines can be easily separated by picking up a single crystal with a pair of tweezers, and with the use of an SPI Two-in-One™ Easy Duster.

	SPI #	Each		In Stock
NaCl Rock Salt "Off-Cuts" (50 grams)	01779-FA	54.90		No