(19) Type 3A will adsorb those molecules having a critical pore diameter of less than three angstroms. e.g.: Helium Hydrogen and Carbon Monoxide. It it also the preferred Molecular Sieve adsorbent for the commercial dehydration of unsaturated hydrocarbon streams such as cracked gas, propylene, butadiene and acetylene. The potassium form of Zeolite.
Type 3A Molecular Sieve is recommended for drying unsaturated hydrocarbons and highly polar compounds such as methanol and ethanol. The 3A structure is particularly effective in dehydrating the inner space of insulating glass windows as well as refrigerant gases.
(19) Type 4A Molecular Sieve is the preferred adsorbent for static dehydration in a closed gas or liquid system. It is used as a static desiccant in household refrigerating systems, packaging of drugs, electronic components, perishable chemicals and as a water scavenger in paint and plastic systems. Also used commercially in drying saturated hydrocarbon streams. The sodium form of Zeolite.
Type 4A Molecular Sieve is typically used in regenerable drying systems to remove water vapor or contaminants that have a smaller critical diameter than four angstroms.
(14) Moisture-indicating Molecular Sieves are beads that have been chemically impregnated to display a blue color when fully activated by removing the water of hydration. When a gas stream is dried using this product, the blue color will turn to pink as water is adsorbed denoting saturation of the sieve. The sieve may then be reactivated at 200°C under vacuum or nitrogen atmosphere for several hours. More conveniently, the sieve may be replaced from fresh stock.
Type 4A Moisture-Indicating Molecular Sieve is the preferred adsorbent for static dehydration in a closed gas or liquid system. It is used as a static desiccant in household refrigeration systems, packaging of drugs, electronic components, perishable chemicals and as a water ...
(19) Type 5A Molecular Sieve is typically used to separate normal paraffins from branched-chain and cyclic hydrocarbons through a selective adsorption process. Type 5-A will adsorb those molecules having a critical pore diameter of less than five angstroms.
e.g.: Methanol, Ethane and Propane. The calcium form of Zeolite.
(19) The preferred Molecular Sieve adsorbent for dynamic dehydration in a closed gas or liquid system. Used commercially for general gas drying, air plan feed purification (simultaneous removal of H2O and CO2) and liquid hydrocarbon and natural gas sweetening (H2S and mercaptan removal). A modified sodium form of Zeolite.
Type 13X is used commercially for general gas drying, air plant feed purification (simultaneous removal of H2O and CO2) and liquid hydrocarbon and natural gas sweetening (H2S and mercapstan removal). All molecules which can be adsorbed on molecular sieves 3A, 4A and 5A can be adsorbed on Type 13X. In addition,Type 13X can adsorb molecules of larger critical diameters, such as aromatics and ...
(7) Tri-Sorb® is a prepackaged sachet-style packets of Type 4A Molecular Sieve specifically designed to adsorb water vapor in static environments where tempertures may exceed 100°F and absolute water vapor adsorption is a must. It can achieve extremely low dewpoints in properly sealed packaging in instrumentation. Type 4A Molecular Sieve will adsorb molecules with a critcal diameter of less than four Angstroms. i.e.: Carbon Dioxide. Prepackaged sodium form of Zeolite.
(2) Meets the current Military Standard, MS20003-2 that is approved by all Governmental Agencies, the Department of Defense and NATO for using in Method II packaging.
Mil-I-8835 and Mil-P-116 Method II
As the humidity increased the chemically impregnated spots change from a blue color (DRY), through a lavender, to a pink color (HUMID). As the humidity level increases (by replacing saturated desiccant), the spots change from a pink color, (HUMID) through a lavender, to a blue color (DRY).
Cards are packaged in re-sealable containers with desiccant for extended shelf life. Each of these cards are accurate to a plus or minus 5% relative humidity at 75°F.
Note: These cards have been impregnated with a chemical that may ...
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