Drying Agents

Silica Desiccants

Silica-based drying agents, such as silica gel desiccant or high purity silica sand, are used in applications that demand high adsorption capacity or particle size control. The unique physical properties of mesoporous silica, such as high surface area and an ordered pore structure, make it valuable for a variety of applications ranging from CO₂ sequestration to catalysis and the removal of heavy metals from wastewater (such as Pb, Fe, Au, etc.). Non-porous monodisperse silica particles are utilized in liquid chromatography, while high-purity grade silica gel finds applications in flash chromatography.

Silica Gel Desiccant Sachets

Desiccant sachets are small, sealed packets filled with silica gel, designed to provide reliable moisture protection for sensitive products. They are available in a variety of dimensions and packaging sizes to meet different needs. Our desiccant sachets include high-adsorption silica gel to effectively prevent moisture damage during storage and transport.

Molecular Sieves

Molecular sieves are suitable for drying practically all gases and liquids. They are commonly used in desiccators and drying tubes to keep absolute solvents dry, in columns to dry gases or solvents, and for selective adsorption. (e.g., phosgene from chloroform).

Molecular sieves show high adsorption capacity even at high temperatures and low water content of the substance to be dried. Due to their very small pores of exactly defined dimensions, they selectively adsorb only molecules small enough to pass through the holes. Molecular sieves have a particularly high adsorption affinity for polar and unsaturated organic molecules, however, H₂O is always preferentially adsorbed. Another advantage is their high chemical inertness and non-toxicity, which makes them easy to use and dispose of. Regeneration can be carried out as often as required.

We offer molecular sieves with 0.3 nm bead form and moisture indicator brown gel for use in Karl Fischer titrators.

Zeolite Molecular Sieves

Zeolites are porous minerals that can selectively adsorb certain molecules. They are used in various filtration processes, including water treatment and gas separation. We offer a variety of zeolite molecular sieves for the adsorption of a wide variety of cations, such as Na+, K+, Ca2+, Mg2+, and others.

Phosphorus Pentoxide Desiccant and SICAPENT^® Phosphorus pentoxide

Phosphorus pentoxide is a powerful desiccant suitable for drying neutral and acid gases, saturated aliphatic and aromatic hydrocarbons, nitriles, alkyl, and acryl halogenides, and carbon disulfide.

Additionally, we offer SICAPENT^® granulated phosphorus pentoxide drying agent with an indicator on an inert carrier material. It is optimized for use in drying tubes and is particularly well-suited for drying fast-flowing gases, with the indicator enhancing its ease-of-use. SICAPENT^® drying agent adsorbs 20% more water than simple phosphorus pentoxide, even after significant water uptake. This feature preserves the free-flowing particle form of phosphorus pentoxide, making removal easier and ideal for drying fast-flowing gases in tubes.

Calcium Chloride Drying Agent

Calcium chloride (CaCl₂) is an inexpensive and readily available calcium salt widely utilized for various applications. Its significance lies in its role as a key component in deicers, effectively melting snow and ice. With a remarkable drying capacity of up to 98%, calcium chloride binds water through crystallization and can be regenerated through warming. In its anhydrous form, calcium chloride desiccant serves as an economical drying agent, playing a crucial role in laboratory drying processes such as the drying of liquids and neutral gases.

Additionally, calcium chloride proves to be an effective drying agent for a wide variety of solvents. It is well-suited for drying acetone, ethers, numerous esters, aliphatic, olefinic, aromatic, and halogenated hydrocarbons. Also, its availability in granular form makes it a common choice for use in drying tubes.

Calcium Oxide Drying Agent

Calcium oxide is a basic drying agent that is suitable for dehydrating neutral and basic gases, amines, low-boiling alcohols, and ethers. Our calcium oxide is obtained from selected natural marble, contributing to the sustainable protection of people and the environment.

Bentonite Clay Desiccant

Our selection of bentonite clay is effective in clarifying liquids by adsorbing impurities and preventing their passage through the filter medium. Its applications include clarification of edible and mineral oils, paints, cosmetics, and pharmaceuticals.