MilliporeSigma
All Photos(1)

Documents

96096

Sigma-Aldrich

Zeolite

Sign Into View Organizational & Contract Pricing

Synonym(s):
Aluminosilicate
CAS Number:
EC Number:
MDL number:
NACRES:
NA.25

form

powder

Quality Level

particle size

<20 μm

Looking for similar products? Visit Product Comparison Guide

Compare Similar Items

View Full Comparison

Show Differences

1 of 4

This Item
208590334294334308
vibrant-m

96096

Zeolite

vibrant-m

208590

Molecular sieves, 4 Å

vibrant-m

334294

Molecular sieves, 4 Å

vibrant-m

334308

Molecular sieves, 4 Å

form

powder

form

beads

form

pellets

form

pellets

Quality Level

100

Quality Level

100

Quality Level

100

Quality Level

100

General description

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.
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.

Application

Zeolite, a microporous, aluminosilicate mineral, is used as a molecular sieve and as an adsorbent of a wide variety of cations, such as Na+, K+, Ca2+, Mg2+ and others. Zeolite is used in the development of a variety of bioreactor devices.

Other Notes

In the determination of serum triglycerides

Storage Class

11 - Combustible Solids

wgk_germany

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Documents related to the products that you have purchased in the past have been gathered in the Document Library for your convenience.

Visit the Document Library

Difficulty Finding Your Product Or Lot/Batch Number?

Product numbers are combined with Pack Sizes/Quantity when displayed on the website (example: T1503-25G). Please make sure you enter ONLY the product number in the Product Number field (example: T1503).

Example:

T1503
Product Number
-
25G
Pack Size/Quantity

Additional examples:

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

enter as 1.000309185)

Having trouble? Feel free to contact Technical Service for assistance.

Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.

Aldrich Products

  • For a lot number such as TO09019TO, enter it as 09019TO (without the first two letters 'TO').

  • For a lot number with a filling-code such as 05427ES-021, enter it as 05427ES (without the filling-code '-021').

  • For a lot number with a filling-code such as STBB0728K9, enter it as STBB0728 without the filling-code 'K9'.

Not Finding What You Are Looking For?

In some cases, a COA may not be available online. If your search was unable to find the COA you can request one.

Request COA

Lactic acid production on liquid distillery stillage by Lactobacillus rhamnosus immobilized onto zeolite.
Djukic-Vukovic AP, Mojovic LV, Jokic BM, et al.
Bioresource Technology (2012)
Benzylimidazolium cations as zeolite structure-directing agents. Differences in performance brought about by a small change in size.
Rojas A, Gomez-Hortiguela L, Camblor MA.
Dalton Transactions (2012)
Thomas Simons et al.
Beilstein journal of nanotechnology, 3, 667-673 (2012-12-06)
In a proof-of-concept study we demonstrate in situ reaction monitoring of DeNO(x)-SCR on proton-conducting zeolites serving as catalyst and gas sensor at the same time. By means of temperature-dependent impedance spectroscopy we found that the thermally induced NH(3) desorption in
Mehran Andalib et al.
Bioresource technology, 121, 411-418 (2012-08-07)
The primary objective of this work was to investigate the treatability of thin stillage as a by-product of bioethanol production plants using an anaerobic fluidized bed bioreactor (AFBR) employing zeolite with average diameter of (d(m)) of 425-610 μm and specific
C Mery et al.
Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering, 47(3), 420-427 (2012-02-11)
An evaluation of natural zeolite as a microorganism carrier in nitrifying reactors operated in batch mode was carried out. Specifically, the influence of zeolite particle sizes of 0.5, 1.0 and 2.0 mm in diameter on microorganism adherence to zeolite, ammonium

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service