Molecular Sieve type 3A is an alkali metal alumino-silicate; it is the potassium form of the type A crystal structure. Type 3A has an effective pore opening of about 3 angstroms (0.3nm). Applications: ◆Dehydration of many kinds of liquids (e. g: ethanol). ◆Drying for air, refrigerant, natural gas and methane. ◆Drying for cracked gases, ethylene, acetylene,prop- ylene and butadiene insulating glass desiccant. Packaging:a ◆Steel drum, paper drum, aluminum foil bag or per customer’s request. This is large enough to allow in moisture, but excludes molecules such as unsaturated hydrocarbons which can potentially form polymers; and this maximises lifetime when dehydrating such molecules.