Particle Size and Shape of Salt

Particle Characterization

Salt producers carry out quality control on the mined product during production and on outgoing goods. Some companies use particle measurement systems in the quality lab, some use them at-line or on-line. A basic requirement for most applications is that the salt grains/granules have a defined particle size distribution. The historic technique for measuring the PSD of salt has been sieve analysis. Many salt producing facilities have now switched to dynamic image analysis (the CAMSIZER), which is quicker, more efficient, and provides additional information about the shape of the salt crystals. This application note describes how the CAMSIZER has been successfully used to characterize salt size and shape.

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Particle Size and Shape of Salt
DescriptionThe chemical term “salt” refers to an ionic compound of anions and cations in general. This document will refer to the two most common forms of salt, sodium chloride (NaCl) and potash (KCl, potassium chloride). Salt is a dietary mineral that is essential for animal life, but can be toxic to many land plants. Salt flavor is one of the basic tastes, making salt one of the oldest, most ubiquitous food seasoning. Salt is used mainly in the chemical industry (85%), but also in the production of food, washing powder, de-icing salt and organic and inorganic fertilizer (for example KCl), and can be either liquid or granular.
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