12173-28-3

Basic information

• Product Name: MOLECULAR SIEVES
• Synonyms: MOLECULAR SIEVE;MOLECULAR SIEVES;MOLECULAR SIEVE 13X 1/16;MOLECULAR SIEVE 3A 1/16;MOLECULAR SIEVE 4A 1/16;MOLECULAR SIEVE 5A 1/16;MOLECULAR SIEVES, 5A;MOLECULAR SIEVES 3A 1/16
• CAS NO: 12173-28-3
• Molecular Formula: Na86[AlO2)86(SiO2)106] . XH21
• Molecular Weight: 290.38
• EINECS: 215-283-8
• Mol File: 12173-28-3.mol
• Article Data: 0

Chemical Properties

• Melting Point: >600°C
• Appearance: /
• CAS DataBase Reference: MOLECULAR SIEVES(CAS DataBase Reference)
• NIST Chemistry Reference: MOLECULAR SIEVES(12173-28-3)
• EPA Substance Registry System: MOLECULAR SIEVES(12173-28-3)

Safety Data

• Hazard Codes: Xn,Xi
• Statements: 20-36/37-36/37/38
• Safety Statements: 22-36-26
• TSCA: Yes
• Hazardous Substances Data: 12173-28-3(Hazardous Substances Data)

Usage

Agricultural Uses

Molecular sieves are a group of adsorptive desiccants which are crystalline aluminosilicates, chemically similar to clays and feldspars, belonging to a class of minerals known as zeolites. The most important characteristic of these materials is their ability to undergo dehydration with little or no change in crystal structure. The dehydrated crystals are interlaced with regularly spaced channels of molecular dimensions, comprising almost 50% of the total volume of crystals. The empty cavities in activated molecular sieve crystals have a strong tendency to recapture the water molecules that have been driven out. This tendency is so strong that if no water is present, they will accept any material that can enter or filter into them. However, only those molecules that are small enough to pass through the pores of the crystal can enter the cavities and be adsorbed on the interior surface. This sieving or screening action, which makes it possible to separate smaller molecules from the larger ones, is the most unusual characteristic of molecular sieves. Molecular sieves are used in many fields of technology to dry gases and liquids. They are also used for selective molecular separations based on such size and polar properties as ion-exchangers, as catalysts and in petroleum industry to remove normal paraffins from distillates.

Related news

Ordered mesoporous MOLECULAR SIEVES (cas 12173-28-3) as active catalyts for the synthesis of 1,4-dihydropyridine derivatives08/01/2019

Research on heterocyclic compounds with biological and pharmacological activity continues to arouse great interest. The study of 1,4-dihydropyridines (1,4-DHPs) is of particular interest in the pharmaceutical field due to their important applications as calcium channel antagonists for the treatm...detailed

Stability improvement of algal-alginate beads by zeolite MOLECULAR SIEVES (cas 12173-28-3) 13X07/31/2019

This research aimed to improve the stability of Chlorella-Alginate Beads (CABs) by zeolite molecular sieves 13X. Dissolution time of synthesized Zeolite-Algal-Alginate Beads (ZABs) in a chelating agent revealed a significant improvement on the beads stability (78.5 ± 0.5 min) compared to the co...detailed