Calcium Chloride Anhydrous Powder (CaCl₂) 94-99%

Calcium Chloride Anhydrous Powder (CaCl₂) is a white, crystalline hygroscopic powder with 94-99% purity. Unlike the dihydrate form, it contains no water of crystallization and absorbs moisture rapidly from the air, making it ideal for desiccant and chemical synthesis applications.

Both are anhydrous forms of calcium chloride with 94-99% purity. The powder has a finer particle size and dissolves faster, making it preferred for chemical reactions, buffer preparation, and laboratory use. Pellets have a larger particle size (4-20 mesh) and are preferred for applications requiring controlled moisture absorption, such as gas drying columns.

Calcium chloride anhydrous powder is used as a desiccant for drying gases and organic liquids, as a catalyst in tetrahydropyranylation of alcohols and phenols, in composite adsorbents for cooling and dehumidification systems, as a concrete accelerator, and in cell culture and competent cell preparation for laboratory use.

Store in a tightly sealed container at room temperature, protected from moisture and humidity. The powder is highly hygroscopic and deliquescent—it absorbs moisture from the air and can cake or turn to liquid if exposed. Shelf life is up to 5 years under proper storage conditions.

Yes, XRD Chemical supplies Food Grade Anhydrous Calcium Chloride Powder (E509) that meets FCC standards and is manufactured under GMP. It is Kosher certified, Halal compliant, and GRAS-listed by the FDA for use as a firming agent in food processing.