... column-shaped structure, in which there is white Calcium Chloride flakes or pearls, packed in PE bags. 1. ... column-shaped structure, in which there is white Calcium Chloride flakes or pearls, packed in PE bags. This ... be used, and is easily collected again. Calcium Chloride has the nature of absorbing the moisture in ... -absorbing material, such as Silica Gel or Calcium Oxide, it is quick and has big ...