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Petrotat 3A Molecular Sieve is a synthetic crystalline aluminosilicate with a regular micropore structure. it is the potassium form of the type A crystal structure. Type 3A has an effective pore opening of about 3 angstroms (0.3nm). This is large enough to allow in moisture, but excludes molecules such as unsaturated hydrocarbons which can potentially form polymers; and this maximizes lifetime when dehydrating such molecules.
Petrotat 3A Molecular Sieve family included 3A MS03 commonly used for drying of gases like CNG and 3A-EDG for polar solvents (methanol, ethanol) and PURSORB® 3A-EPG, 3A-EPG II and 3A-PPG for polymerizable substances, such as unsaturated hydrocarbons (ethylene, propylene, acetylene and butadiene).
This 3A Molecular Sieve is a sodium-potassium aluminosilicate with a pore size of 3A [0.3 nm], which is also called 3A zeolite. It is one of the types of aluminosilicate crystals.
The chemical formula of Molecule Arsio 3A is equal to K12[(AlO2)12(SiO2)].XH2O and the ratio of silicon to aluminum is SiO2/Al2O3=2
3A Molecular Sieve is usually used to dry or remove moisture from gases and solvents.
The 3A Molecular Sieve can be regenerated by the TSA thermal method at 200-230 degrees Celsius or by reducing the pressure in the PSA process.
If the Molecular Sieve reaction is properly regenerated, it can create a dew point below -100 degrees Celsius.
3A Molecular Sieve should not be exposed to the open air and should be stored in dry conditions and in the correct airtight packaging..