Molecular sieve CAS#308080-99-1
Products Description of Molecular sieve 3A CAS#308080-99-1
Molecular sieve is an aluminosilicate compound with a cubic lattice structure. Its main component is a hollow framework formed by silicon and aluminum connected via oxygen bridges, which contains numerous uniformly sized channels, neatly arranged pores, and a large internal surface area. It also includes metal ions with low charge and large ionic radius, as well as chemically bound water.
When heated, the water molecules in molecular sieves are continuously removed, but the crystal framework structure remains intact—this process forms many cavities of the same size, connected by micropores of uniform diameter. These micropores have consistent diameters: they can adsorb molecules smaller than the pore diameter into the cavities while repelling larger molecules. As a result, molecular sieves can separate molecules with different shapes, diameters, polarities, boiling points, and saturation levels, giving them the ability to "screen" molecules, hence the name. Currently, they are widely used in industries such as chemicals, electronics, petrochemicals, and natural gas.
Parameters
storage temp. | room temp |
form | Powder or Crystals |
color | Yellow to yellow-green |
Water Solubility | Insoluble in water. |
Sensitive | Hygroscopic |
CAS DataBase Reference | 308080-99-1 |
Safety Information
Hazard Codes | Xi,Xn |
Risk Statements | 36/37/38-20 |
Safety Statements | 26-36 |
WGK Germany | 3 |
TSCA | Yes |
HS Code | 28421000 |
Product Application of Molecular sieve 3A CAS#308080-99-1
Molecular sieve 3A is primarily used as a desiccant in the petroleum and chemical industries. It is effective for drying unsaturated hydrocarbons like ethylene, propylene, and butadiene, and also works to remove water from ethanol.
Its applications extend to drying specific chemicals, including ethanol, refrigerants, and natural gas. It also plays a key role in the selective adsorption of water in insulated glass (IG) and polyurethane, and is regarded as a general-purpose drying agent suitable for both polar and non-polar media.
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Inventory 2-3 working days New production 7-10 working days
