Description
Specifications Table
Product Name – Calcium chloride, UltraDry™, 99.9% (metals basis)
Quantity/Pack Size – 10g, 2g
Form – Anhydrous granules
Grade – UltraDry™ (ultra-low water content)
Application – Desiccation, gas drying, moisture-sensitive synthesis, dehydration reactions
Product Overview
Calcium chloride UltraDry™ (99.9% metals basis) is an ultra-high-purity desiccant engineered for applications demanding minimal residual moisture. Unlike standard calcium chloride, this UltraDry™ grade undergoes rigorous drying processes to achieve an anhydrous state with exceptionally low water content, ensuring consistent performance in critical drying tasks. The free-flowing granular form maximizes surface area for rapid moisture absorption while maintaining chemical stability across a wide temperature range. Its 99.9% metals basis purity eliminates trace metal contaminants that could interfere with sensitive reactions or analytical procedures. The product’s hygroscopic nature makes it particularly effective in closed systems like desiccators, where it can maintain ultra-low humidity levels for extended periods. Compatible with most organic solvents and inert gases, it serves as a versatile drying agent for laboratory-scale operations. The granular structure resists caking even under high humidity exposure, ensuring easy handling and precise dosing. This grade is specifically formulated to outperform technical-grade calcium chloride in applications where residual moisture could compromise results, such as in organometallic synthesis or moisture-sensitive catalytic reactions.
FAQs
1. How does UltraDry™ calcium chloride differ from standard anhydrous calcium chloride?
The UltraDry™ grade undergoes additional purification and drying steps to achieve significantly lower residual moisture content than standard anhydrous grades. This results in faster absorption kinetics and longer effective drying capacity in closed systems.
2. What is the typical moisture absorption capacity of this product?
Under standard conditions, this grade can absorb up to 2.5 times its weight in water vapor, though actual capacity depends on relative humidity and temperature. The ultra-low initial moisture content ensures maximum absorption potential from the first use.
3. Can this be used for drying organic solvents like THF or diethyl ether?
While effective for preliminary drying, for solvents like THF or diethyl ether, molecular sieves or sodium metal are generally preferred for final drying stages due to their higher efficiency with these specific solvents.
4. What’s the shelf life when stored in original packaging?
When kept in the original airtight container with the desiccant cap intact, the product maintains its UltraDry™ specifications for at least 24 months from the date of manufacture.
5. Does this product contain any anti-caking agents?
No anti-caking agents are added. The free-flowing properties result from the controlled crystallization process during manufacturing, which creates uniformly sized granules that resist agglomeration.
