4A
Because of the smaller pour size of type 4A it is less subject to contamination due to the drying process. Molecular Sieve type 4A is an alkali alumino
silicate; it is the sodium form of the Type A crystal structure. 4A
molecular sieve has an effective pore opening of about 4 angstroms
(0.4nm). Type 4A molecular sieve will adsorb most molecules with
a kinetic diameter of less than 4 angstroms and exclude those larger.
Such adsorbent molecules include simple gas molecules such as oxygen,
nitrogen, carbon dioxide and straight chain hydrocarbons. Branched
chain hydrocarbons and aromatics are excluded.
To remove moisture from a 4A molecular sieve, a
regeneration temperature of 482-536F is required. A properly regenerated molecular
sieve can give moisture dew points below -100C.
Quantity will equal the total pounds you would like to order
Price: Price is $3.00 per Pound
4A 1/8" bead type desiccant is for screens with a 4 x 8 mesh size. The actual bead size varies from .093 to .185. Because of the smaller pore size of 4A it is less subject to contamination but it has a lower absorbency rate then 13X. Price is per pound.
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Price: Price is $3.00 per Pound
4A 1/16" bead type desiccant is for screens with a 8 x 12 mesh size. The actual bead size varies from .055 to .093. Because of the smaller pore size of 4A it is less subject to contamination but it has a lower absorbency rate then 13X. Price is per Pound.
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