Molecular sieve 3A CAS#308080-99-1
Precise molecular selectivity ： Uniform pore size enables selective adsorption of specific molecules while excluding larger ones.
High surface area ： intricate pore structure provides extensive surface area for adsorption and catalytic applications.
Thermal stability ： maintains crystal structure after water loss during heating.
Versatile separation capability ： effectively separates molecules by size, shape, polarity, boiling point, and saturation level.
Product Description of Molecular Sieve 3A (CAS#308080-99-1)
Molecular sieve 3A is an aluminosilicate compound featuring a cubic lattice structure, primarily composed of silicon and aluminum atoms interconnected by oxygen bridges to form a porous framework. This structure contains numerous uniformly sized channels and neatly arranged pores, resulting in a high internal surface area. Additionally, the material incorporates metal ions with low charge and large ionic radius, as well as chemically bound water molecules.
When subjected to heating, the water molecules are gradually lost, while the crystalline framework remains intact. This process creates cavities of consistent size interconnected by micro-pores of uniform diameter. The precise pore dimensions enable selective adsorption of molecules smaller than the pore size, while repelling larger molecules.
Due to this unique property, molecular sieve 3A can effectively separate molecules based on differences in shape, size, polarity, boiling point, and saturation level—functioning as a "molecular sieve" to selectively filter substances. Consequently, it is widely utilized across industries such as chemicals, electronics, petrochemicals, and natural gas processing.
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 |
| 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 serves as a highly effective desiccant in the petroleum and chemical sectors. Its primary applications include:
· Drying unsaturated hydrocarbons: Specifically tailored for drying ethylene, propylene, and butadiene.
· Ethanol dehydration: Efficiently removes water from ethanol solutions.
· Chemical drying: Used for drying ethanol, refrigerants, and natural gas.
Additionally, it plays a critical role in selective water adsorption for insulated glass (IG) units and polyurethane systems. Due to its versatile performance in both polar and non-polar media, Molecular Sieve 3A is widely regarded as a general-purpose drying agent across industrial applications.
