Calcium Sulfate Dihydrate

Calcium Sulfate Dihydrate is an important and versatile raw material in industry. Its specific characteristics include: low hardness, making it easy to grind into powder; when heated to an appropriate temperature (approximately 150°C), it loses some of its crystal water and transforms into hemihydrate gypsum (plaster of Paris), a process that is reversible, allowing it to rehydrate and harden when exposed to water; it is also chemically stable, slightly soluble in water, and the pure product is white and odorless. Based on these characteristics, its main uses include: as a retarder in the cement industry to control setting time; in the production of gypsum building materials (such as gypsum boards and plaster), utilizing its lightweight, fire-resistant, and heat and sound insulating properties after hardening; as a mold material and for adjusting firing behavior in the ceramic industry; and as a soil conditioner in agriculture and as a coagulant and additive in the food industry.

TOPLUS Calcium Sulfate Dihydrate, through advanced purification and crystallization control processes, demonstrates significant advantages in industrial applications: its products have higher purity and more consistent crystal morphology, with extremely low impurity content. This allows for more precise and stable control of setting time when used as a cement retarder; and in gypsum building materials production, it enables the formation of gypsum products with a more uniform structure, higher strength, and more controllable hardening speed.