BigPatents India

The present invention relates to an evaporative crystallisation process to make salt compositions which comprises a step wherein a mother liquor is formed containing an effective amount of a crystal growth inhibitor comprising at least one saccharide or saccharide derivative and wherein the effective amount of crystal growth inhibitor is less than 50,000 mg per kg of mother liquor, to form an octahedral or spherical high- purity salt wherein the K and/or Br and/or 804 and/or Ca content is at least 5% lower than in salt crystallised from the same mother liquor but without using a crystal growth inhibitor.