Description
Molecular sieves, 3 Å, beads, 4-8 mesh
Synonym(s):
Molecular Sieve UOP Type 3Å
Linear Formula:
KnNa12-n[(AlO2)12(SiO2)12] · xH2O
CAS Number:
308080-99-1
MDL number:
MFCD00147627
eCl@ss:
32110204
NACRES:
NB.24
PROPERTIES
form
beads
Quality Level
100
particle size
4-8 mesh
pore size
3 Å
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:
- Synthesis of ecteinascidin 743 (a potential marine-derived antitumor agent).[2]
- Preparation of vanillyl nonanoate (a model capsinoid compound).[3]
- Highly enantioselective Friedel-Crafts alkylation of indoles with nitroalkenes.[4]
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.
Packaging
1 kg in poly bottle
5 kg in fiber drum
SAFETY INFORMATION
Storage Class Code
13 - Non Combustible Solids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
-
On Sale
MilliporeSigmaMolecular sieves, 3 A, beads, 4-8 mesh, 5KG
SKU: 208574-5KG
Now: $542.50Was: $620.00Molecular sieves, 3 A, beads, 4-8 mesh, 5KG Synonym(s): Molecular Sieve UOP Type 3Å Linear Formula: KnNa12-n[(AlO2)12(SiO2)12] · xH2O CAS Number: 308 -
MilliporeSigmaMolecular sieves, 4 A, beads, 4-8 mesh
SKU: 208590-500G
$93.40Molecular sieves, 4 Ã…, beads, 4-8 mesh PROPERTIES Quality Level 100 form beads particle size 4-8 mesh pore size -
MilliporeSigmaMolecular sieves, 13X, beads, 8-12 mesh, 5KG
SKU: 208647-5KG
$608.00Molecular sieves, 13X, beads, 8-12 mesh, 5KG Linear Formula: Na86[AlO2)86(SiO2)106] · xH2O CAS Number: 63231-69-6 MDL number: MFCD00131613 eCl -
On Sale
MilliporeSigmaMolecular sieves, 3A beads, 8-12 mesh, 5KG
SKU: 208582-5KG
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On Sale
MilliporeSigmaMolecular Sieve, Type 4A, bead size 8-12 mesh, 1.5KG
SKU: MX1583L-4
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MilliporeSigmaMolecular sieve 0.4 nm, 1KG
SKU: 1057391000
Now: $202.50Was: $300.00Molecular sieve 0.4 nm, 1KG bead diam. ~2 mm, size ~10 mesh PROPERTIES form beads Quality Level 200 bead diam. ~2 mm -
On Sale
MilliporeSigmaMolecular sieve 0.4 nm, 250G
SKU: 1057390250
Now: $85.05Was: $126.00Molecular sieve 0.4 nm, 250G bead diam. ~2 mm, size ~10 mesh PROPERTIES form beads Quality Level 200 bead diam. ~2 mm -
On Sale
MilliporeSigmaMolecular sieve 0.4 nm, Reag. Ph Eur, 1KG
SKU: 1057081000
Now: $161.25Was: $300.00Molecular sieve 0.4 nm, 1KG beads ~ 2 mm / ~ 10 mesh Reag. Ph Eur Synonym(s): Molecular sieve 0.4 nm, Sodium aluminium silicate CAS Number: 1318-02-1 EC Index... -
On Sale
MilliporeSigmaMolecular sieve 0.4 nm, Reag. Ph Eur, 250G
SKU: 1057080250
Now: $75.90Was: $138.00Molecular sieve 0.4 nm, beads ~ 2 mm / ~ 10 mesh Reag. Ph Eur, 250G Synonym(s): Molecular sieve 0.4 nm, Sodium aluminium silicate CAS Number: 1318-02-1 EC Index...
