Molecular sieves, 3 Å - pellets,2-3 mm , CAS No.308080-99-1

CAS: 308080-99-1 Cat. No.: M100324 EC Number: 681-678-0

GRADE & PURITY pellets,2-3 mm

Synonyms

MOLECULARSIEVE | Molecular sieves, 1/8'' pellets (Linde 5A) | Silicic acid, aluminum sodium salt | Sodium aluminum silicate | aluminum;sodium;dioxido(oxo)silane | MOLECULAR SIEVES, 5A | SODIUM ALUMINOSILICATE | sodium alumino-silicate | DTXSID7026021 | MO

Storage

Argon charged,Desiccated,Room temperature

Shipped In

Normal

Overview

Choosing a Molecular Sieve: 1. The preferential adsorption of one molecule over another depends upon pore diameter and mesh size. 2. The dynamic capacity of the silica gel for adsorbing a particular compound is governed by the internal surface area; the greater the surface area, the greater the dynamic capacity. 3. Rate of adsorption and sharpness of resolution are dependent chiefly on particle size and column packing; a fine particle size gives optimum sharpness of resolution. 4. Liquids are most readily adsorbed from solvents in which they are least soluble; a good solvent makes a good desorbing agent. 5. Highly polar liquids are readily adsorbed. Compounds having hydroxyl groups, or containing oxygen are strongly adsorbed. 6. For similar compounds, the higher the molecular weight the higher the selectivity. 7. For hydrocarbons of similar molecular weight, adsorptivity increases with the number of double bonds. Molecular sieves are crystalline metal aluminosilicates having a three-dimensional interconnecting network of silica and alumina tetrahedra. Natural water of hydration is removed from this network by heating to produce uniform cavities which selectively adsorb molecules of a specific size. The 3A form is made by substituting potassium cations for the inherent sodium ions of the 4A structure, reducing the effective pore size to ~3Å, excluding molecules of diameter >3Å (for example: ethane). The 8 to 12-mesh type is common in liquid-phase applications. Molecular sieves are considered a universal drying agent in polar and nonpolar media. Molecular sieves, 3Å is a UOP-type zeolite 3Å.It is widely employed as a sorbent. Regeneration or Activation: A saturated molecular sieve can be restored to its original capacity by regeneration, the principle of which involves changing the conditions surrounding the adsorbent to correspond to a very low equilibrium capacity. In general, the greater the difference between the equilibrium capacities of adsorption and regeneration, the more rapid and complete the regeneration. The sieve may be regenerated in one of four ways: 1. Thermal reactivation –The maximum regeneration temperature for Silica is 300°C. 2. Pressure reactivation 3. Passing an appropriate fluid through the gel bed at normal temperature and pressure. 4. Displacement of adsorbates by passing a high concentration of molecules in a fluid through the bed. The kinetics of the adsorption of water-vapor by employing molecular sieve 3Å has been studied in various temperature ranges (25-80°C and water dew points from -69 to 17°C).

Specifications

Synonyms

MOLECULARSIEVE | Molecular sieves, 1/8'' pellets (Linde 5A) | Silicic acid, aluminum sodium salt | Sodium aluminum silicate | aluminum;sodium;dioxido(oxo)silane | MOLECULAR SIEVES, 5A | SODIUM ALUMINOSILICATE | sodium alumino-silicate | DTXSID7026021 | MO

Specifications & Purity

pellets, 2-3 mm

Storage

Argon charged, Desiccated, Room temperature

Shipped In

Normal

Names and Identifiers

• Canonical Smiles: [O-][Si](=O)[O-].[O-][Si](=O)[O-].[Na+].[Al+3]
• IUPAC Name: aluminum;sodium;dioxido(oxo)silane
• InChIKey: URGAHOPLAPQHLN-UHFFFAOYSA-N
• INCHI: 1S/Al.Na.2O3Si/c;;2*1-4(2)3/q+3;+1;2*-2
• Isomeric SMILES: [O-][Si](=O)[O-].[O-][Si](=O)[O-].[Na+].[Al+3]
• Reaxy-Rn: 13277510
• Reaxys-RN_link_address: https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=13277510&ln=

Taxonomic Classification

Taxonomy Tree

• Kingdom Inorganic compounds
  • Superclass Mixed metal/non-metal compounds
    • Class Post-transition metal oxoanionic compounds
      • Subclass Post-transition metal silicates

• Kingdom: Inorganic compounds
• Superclass: Mixed metal/non-metal compounds
• Class: Post-transition metal oxoanionic compounds
• Subclass: Post-transition metal silicates
• Intermediate Tree Nodes: Not available
• Direct Parent: Post-transition metal silicates
• Alternative Parents: Miscellaneous silicates Post-transition metal salts Metalloid salts Inorganic sodium salts Inorganic oxides
• Molecular Framework: Not available
• Substituents: Post-transition metal silicate - Silicate - Inorganic sodium salt - Inorganic post-transition metal salt - Inorganic oxide - Inorganic salt - Inorganic metalloid salt
• Description: This compound belongs to the class of inorganic compounds known as post-transition metal silicates. These are inorganic compounds in which the largest oxoanion is silicate, and in which the heaviest atom not in an oxoanion is a post-transition metal.
• External Descriptors: Not available

Data sources

1. Djoumbou Feunang Y, Eisner R, Knox C, Chepelev L, Hastings J, Owen G, Fahy E, Steinbeck C, Subramanian S, Bolton E, Greiner R, and Wishart DS. ClassyFire: Automated Chemical Classification With A Comprehensive, Computable Taxonomy. Journal of Cheminformatics, 2016, 8:61.

DOI: 10.1186/s13321-016-0174-y

Chemical and Physical Properties

• Solubility: Insoluble in cold water, hot water, methanol, diethyl ether, n-octanol and acetone.
• Sensitivity: Hygroscopic
• Molecular Weight: 202.140 g/mol
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 6
• Rotatable Bond Count: 0
• Exact Mass: 201.895 Da
• Monoisotopic Mass: 201.895 Da
• Topological Polar Surface Area: 126.000 Ų
• Heavy Atom Count: 10
• Formal Charge: 0
• Complexity: 18.800
• Isotope Atom Count: 0
• Defined Atom Stereocenter Count: 0
• Undefined Atom Stereocenter Count: 0
• Defined Bond Stereocenter Count: 0
• Undefined Bond Stereocenter Count: 0
• The total count of all stereochemical bonds: 0
• Covalently-Bonded Unit Count: 4

XLogP3

References

1. Zhengxiang Zhou, Gebin Shen, Xinrong Huang, Chuanhui Yang, Yingfeng Yu.  (2023)  Preparation and Properties of Low Internal Stress Polyimide-b-Polysiloxane with a Hyperbranched Structure.  ACS Applied Polymer Materials,      [PMID:] [10.1021/acsapm.3c01828]

2. Ning Li, Rui Yang, Ye Tian, Pengfei Lu, Nengliang Huang, Hua Li, Xiuyong Chen.  (2022)  Synthesis of durable hydrophobic fluorinated polyurethanes with exceptional cavitation erosion resistance.  TRIBOLOGY INTERNATIONAL,      [PMID:] [10.1016/j.triboint.2022.107973]

3. Jie Guan, Leilei Luo, Ruijing Su, Yaoguang Guo, Chenglong Zhang, Ruixue Wang, Xiaolong Song, Xuning Zhuang, Xihua Zhang, Xiaojiao Zhang, Hongcheng Wu, Weixing Gu.  (2022)  Microwave-assisted chlorination extraction of valuable metals from spent power ternary lithium-ion batteries.  INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY,      [PMID:] [10.1080/03067319.2022.2098482]

4. Xiaowei Xu, Xinyue Hao, Jing Hu, Weisheng Gao, Nanying Ning, Bing Yu, Liqun Zhang, Ming Tian.  (2021)  Recyclable silicone elastic light-triggered actuator with a reconfigurable Janus structure and self-healable performance.  Polymer Chemistry,  13  (6): (829-837).  [PMID:] [10.1039/D1PY01632F]

5. Yue Teng, Guangqing Song, Rong Chen, Xiao Zhang, Yongjun Sun, Haixia Wu, Biming Liu, Yanhua Xu.  (2021)  Carboxymethyl β-cyclodextrin immobilized on hydrated lanthanum oxide for simultaneous adsorption of nitrate and phosphate.  Journal of the Taiwan Institute of Chemical Engineers,      [PMID:] [10.1016/j.jtice.2021.11.020]

6. Jing Bai, Canwei Cheng, Yong Liu, Chenguang Wang, Yuhe Liao, Lungang Chen, Longlong Ma.  (2021)  Selective hydrogenation of levulinic acid to γ-valerolactone on Ni-based catalysts.  Molecular Catalysis,      [PMID:] [10.1016/j.mcat.2021.112000]

7. Yunmei Wu, Sining Zheng, Yanying Ye, Hongyu Guo, Fafu Yang.  (2021)  Crown-ether-bridging bis-diphenylacrylonitrile macrocycle: The effective fluorescence sensor for oxytetracycline.  JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY,      [PMID:] [10.1016/j.jphotochem.2021.113219]

8. Wenliang Wang, Zhenhao Ma, Xingjin Zhao, Shiwei Liu, Liping Cai, Sheldon Q. Shi, Yonghao Ni.  (2020)  Effect of Various Microwave Absorbents on the Microwave-Assisted Lignin Depolymerization Process.  ACS Sustainable Chemistry & Engineering,      [PMID:] [10.1021/acssuschemeng.0c04658]

9. Biming Liu, Zhenxue Liu, Haixia Wu, Shunlong Pan, Xing Cheng, Yongjun Sun, Yanhua Xu.  (2020)  Effective and simultaneous removal of organic/inorganic arsenic using polymer-based hydrated iron oxide adsorbent: Capacity evaluation and mechanism.  SCIENCE OF THE TOTAL ENVIRONMENT,      [PMID:32629256] [10.1016/j.scitotenv.2020.140508]

10. Wang Weiku, Li Yinhui, Li Weijie, Zhang Baohua, Liu Yaodong.  (2019)  Effect of solvent pre-treatment on the structures and dissolution of microcrystalline cellulose in lithium chloride/dimethylacetamide.  CELLULOSE,  26  (5): (3095-3109).  [PMID:] [10.1007/s10570-019-02300-8]

11. Hong-De Yan, Zhao Wang, Jun-Qing Qian.  (2016)  Efficient kinetic resolution of (RS)-1-phenylethanol by a mycelium-bound lipase from a wild-type Aspergillus oryzae strain.  BIOTECHNOLOGY AND APPLIED BIOCHEMISTRY,  64  (2): (251-258).  [PMID:26854002] [10.1002/bab.1484]

12. Yue Wang, Shijiang Fang.  (2015)  Preparation and characterization of cationic silicone-acrylic latex surface sizing agent.  PROGRESS IN ORGANIC COATINGS,      [PMID:] [10.1016/j.porgcoat.2015.06.031]

13. Qiang Wang, Hongkun Li, Qiang Wei, Jing Zhi Sun, Jian Wang, Xiao A. Zhang, Anjun Qin, Ben Zhong Tang.  (2012)  Metal-free click polymerizations of activated azide and alkynes.  Polymer Chemistry,  4  (5): (1396-1401).  [PMID:] [10.1039/C2PY20797D]

14. Xueyan Yun, Shuai Yuan, Shuo Shi, Yangyang Wang, Linze Liu, Lijun Song, Tungalag Dong.  (2024)  Amine-responsive PVA-based fluorescent indicator films incorporating β-Glucan/FITC for visual detection of chilled meat freshness.  Food Bioscience,      [PMID:] [10.1016/j.fbio.2024.105584]

15. Jingjing Chen, Shuqiang Xiong, Na Li, Junrong Yu, Yan Wang, Zuming Hu.  (2025)  Liquid Metal Particles Decorated by Poly(imidazole-urea) as Versatile Adhesive and Recyclable Inks for Substrate-Irrelevant Direct Writing.  ACS Applied Materials & Interfaces,      [PMID:40013748] [10.1021/acsami.4c21108]

16. Mengyu Li, Wei Zhuang, Xia Meng, Wenxia Zhang, Keke Zhang, Zhenfu Wang.  (2025)  Tailoring microenvironments of metal-enzyme cascade catalysts for efficient DKR reaction of chiral amine.  JOURNAL OF CATALYSIS,      [PMID:] [10.1016/j.jcat.2025.116079]

17. Ning Yan, Jiamin Wu, Li Hua, Ting Gao, Ruixin Liu, Zhaoqing Lu.  (2025)  Fabrication of Highly Dispersed Aramid Nanofibers Based on Cation-Exchange Resin as a Proton Donor: Low Energy Consumption, Solvent Closed-Loop Recovery.  LANGMUIR,      [PMID:40704518] [10.1021/acs.langmuir.5c02354]

18. Hu Rongyan, Liu Zuguang, Ren Xiuxiu, Wang Xiao, Ma Shihao, Wang Xinyi.  (2025)  Silica-loaded perchloric acid as a catalyst for terpene phenol resins.  IRANIAN POLYMER JOURNAL,      [PMID:] [10.1007/s13726-025-01526-7]

19. Hu Rui, Wang Haiyin, Luo Jiahui, Song Jianjun, Jia Haiyuan.  (2025)  Co3O4/Molecular Sieve Catalyst Activated Peroxymonosulfate Degradation of Tetracycline Hydrochloride.  CATALYSIS LETTERS,  155  (9): (1-16).  [PMID:] [10.1007/s10562-025-05127-0]

20. Zhang Kai, Xin Jiaying, Lu Xuechun.  (2024)  Enhanced triolein and ethyl ferulate interesterification performance by CRL-AuNPs.  BIORESOURCE TECHNOLOGY,      [PMID:38493938] [10.1016/j.biortech.2024.130599]

21. Ruixiang Zhou, Weilong Li, Jiayi Li, Jiwen Hu, Xuefeng Gui, Yonglu Dong, Hongcai Yang, Xiaohua Huang, Shudong Lin.  (2024)  Safety risk investigation of trace moisture on solvent-free polyurethane synthesis reaction.  JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY,      [PMID:] [10.1016/j.jiec.2024.11.019]

22. Zhongzhe Li, Weiyu Wang, Wanyao Zhang, Yufang Chen, Xiaoru Yun, Tao Teng, Chunman Zheng, Ligang Xu, Mingxue Tang, Yun Zhao, Baohua Li, Jilei Liu, Peitao Xiao.  (2025)  Data-Assisted Design of Temperature-Resistant Weakly Solvating Electrolyte for All-Climate 500 Wh/kg Lithium-Metal Batteries.  ACS Nano,      [PMID:40533434] [10.1021/acsnano.5c06219]

23. Runlai Luo, Nan Zhao, Zhengmiao Jia, Sihan Wu, Xing Chen, Zhongyuan Li, Feng Ju, Yongming Luo, Hui Li.  (2025)  Simultaneous Stabilization of Cu/Ni/Pb/As Contaminated Soil by a ZVI-BFS-CaO Composite System.  Sustainability,  18  (1):   [PMID:] [10.3390/su18010342]

24. Liu Lei, Xiang Yuxuan, Lu Xingyu, Wang Jianhui.  (2026)  Planar Li deposition and dissolution enable practical anode-free pouch cells.  NATURE,      [PMID:] [10.1038/s41586-026-10402-0]