Abstract
The morphology of the particles of aluminosalicylate complex precipitated from salicylic acid solution by tricalcium aluminate (C3A) was examined by scanning electron microscopy. Agglomerations of small (0.3 μm) equiaxed particles are precipitated from concentrated solutions and are accompanied by peculiar hexagonal prismatic “crystallites” with rounded ends thought to be Ca(OH)2. In more dilute solutions distorted hexagonal plates of C4AH13‐type compounds are also formed.