The effect of supersaturation on the crystal characteristics of potassium chloride

Abstract Different laboratory crystal populations of potassium chloride are described and compared with similar types of industrial crystals. Laboratory experiments have shown that the crystal characteristics, i.e. size distribution, crystal habit and degree of agglomeration are strongly affected by the degree of supersaturation at the beginning of crystallisation. Similarity of crystal characteristics indicates similarity of factors governing growth conditions, hence the industrial growth conditions, especially supersaturation in a crystalliser, may be determined by inspection of the final product.