This product and other 3 Å Molecular Sieves are ideal for drying polar liquids such as ethanol. For general use, add molecular sieves at approximately 3 - 4 times the calculated amount of organic solvent and allow to stand for 24 hours with occasional stirring. Please see the link below to review additional information regarding Molecular Sieves:
https://www.sigmaaldrich.com/technical-documents/technical-article/chemistry-and-synthesis/reaction-design-and-optimization/molecular-sieves
208574
Molecular sieves, 3 Å
beads, 4-8 mesh
Synonym(s):
Molecular Sieve UOP Type 3Å
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About This Item
Linear Formula:
KnNa12-n[(AlO2)12(SiO2)12] · xH2O
CAS Number:
MDL number:
UNSPSC Code:
23201100
eCl@ss:
32110204
NACRES:
NB.24
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General description
Molecular sieves are crystalline metal aluminosilicates having a 3-dimensional interconnecting network of silica and alumina tetrahedra. Natural water of hydration is removed from this network by heating to produce uniform cavities which selectively adsorb molecules of a specific size. The 3A form is made by substituting potassium cations for the inherent sodium ions of the 4A structure, reducing the effective pore size to ~3Å, excluding diameter >3Å, e.g., ethane. The 4 to 8-mesh type is normally used in gas-phase applications. Molecular sieves are considered a universal drying agent in polar and nonpolar media.
Application
Molecular sieves have been used for the drying of dimethyl sulfoxide.[1]
They may also be used in the following:
They may also be used in the following:
Molecular sieves, 3 Å may be used in the following processes:
- As a general-purpose drying agent in polar and nonpolar media.
- Commercial dehydration of unsaturated hydrocarbon streams, including cracked gas, propylene, butadiene, acetylene
- Drying polar liquids such as methanol and ethanol.
- Adsorption of molecules such as NH3 and H2O from a N2/H2 flow.
Storage Class Code
13 - Non Combustible Solids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
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Which molecular sieve should I use to remove water from ethanol
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