Technical Data Sheet
Molecular sieve 3 Å, 1 kg
powder, ≤40 μm
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Zeolite A Potassium, Zeolite
Melting point (mp) >400 °C
WGK 1
CAS No. 1318-02-1
EG-Nr. 215-283-8
WGK 1
CAS No. 1318-02-1
EG-Nr. 215-283-8
Moisture scavenger in the production of polyurethanes, plastics, primers and metal-containing coatings.
2.5 to 5 % of the product is added to the polyol component and thoroughly stirred for at least two hours to absorb the water before the addition of the isocyanate.
2.5 to 5 % of the product is added to the polyol component and thoroughly stirred for at least two hours to absorb the water before the addition of the isocyanate.
€69.80/Pack Qty.
excl. VAT. | 1 kg per Pack Qty.
Art. No. 1YLH.2
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Molecular sieve 3 Å
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| Art. No. | Pack Qty. | Pack. | Price | Quantity | |
|---|---|---|---|---|---|
| 1YLH.1 | 250 g | plastic |
€21.40 |
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| 1YLH.2 | 1 kg | plastic |
€69.80 |
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| 1YLH.3 | 5 kg | plastic |
€241.90 |
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Downloads / MSDS
General information
Molecular Sieves
For drying, cleaning or separating liquids and gases.
Properties:
- Spherical or powdered metal aluminosilicates
- Spheres Ø 1,6-2,5 mm and 2,5-5,0 mm
- Active surface: 600-700 m2/g
- Activated at 500-600 °C; we nevertheless recommend activating the molecular sieve again before using it for the first time
- In desiccators, drying tubes, columns
- For drying streaming gases
- For absoluting organic solvents
- For separating organic solvents
Regenerating:
• In drying cabinets at 200-300 °C
• Through pressure change or rinsing
Critical molecular diameter for frequently occurring molecules, in Å (1 angstrom = 10-10 m = 0.1 nm)
| Molecule | Size [Å] | Molecule | Size [Å] | |
| Acetylene | 3.3 | Helium | 2.0 | |
| Ammonia | 2.9 | Hydrogen | 2.4 | |
| Argon | 3.8 | Hydrogen sulphide | 3.6 | |
| Benzole/toluene | 5.8 | Methane | 3.8 | |
| n-Butanes and higher n-hydrocarbons | 4.3 | Methanol | 3.6 | |
| i-Butane and higher i-hydrocarbons | 5.1 | Methyl mercaptan | 3.8 | |
| i-Butene | 4.0 | Nitrogen | 3.6 | |
| trans-2-Butene | 5.1 | Oxygen | 3.5 | |
| 1,3-Butadiene | 5.8 | Propane | 4.3 | |
| Cyclohexane | 6.0 | Propylene | 4.0 | |
| Carbon dioxide | 3.3 | Tetrahydrofurane | 5.0 | |
| Carbon monoxide | 3.7 | Thiophene | 5.3 | |
| Carbon tetrachloride | 5.9 | Triethylamine | 7.8 | |
| Dimethylpropane | 6.2 | Trichlormethane/Chloroform | 6.9 | |
| Ethane | 4.2 | Water | 2.6 | |
| Ethanol | 4.2 | o-Xylene | 6.6 | |
| Ethylene | 3.9 | m-Xylene | 6.3 | |
| Ethyl mercaptan | 3.8 | p-Xylene | 5.9 |
Certificates of Analysis
Type analysis
| Appearance | light powder |
| H2O ads. capacity (50 % R.F./20 °C/24 h) | ≥22 % |
| Loss on ignition (550 °C) | ≤1.5 % |
| pH value (10 % suspension) | ≤11.4 |
| Particle size | ≤40 µm |