MilliporeSigma
All Photos(1)

Documents

199974

Sigma-Aldrich

Aluminum oxide

activated, neutral, Brockmann I

Sign Into View Organizational & Contract Pricing

Synonym(s):
Alumina
Linear Formula:
Al2O3
CAS Number:
Molecular Weight:
101.96
EC Number:
MDL number:
eCl@ss:
38120402
PubChem Substance ID:
NACRES:
SB.52

grade

Brockmann I
activated
standard grade

form

powder

manufacturer/tradename

CAMAG 507-C-I

technique(s)

ion chromatography: suitable

impurities

<0.03% Fe2O3
<0.03% SiO2
<0.4% Na2O

particle size

40-160 μm

pore size

58 Å pore size

pH

7.0±0.5 ( in H2O)

mp

2040 °C (lit.)

SMILES string

O=[Al]O[Al]=O

InChI

1S/2Al.3O

InChI key

TWNQGVIAIRXVLR-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Compare Similar Items

View Full Comparison

Show Differences

1 of 4

This Item
199966267740199443
Aluminum oxide activated, neutral, Brockmann I

Sigma-Aldrich

199974

Aluminum oxide

Aluminum oxide activated, acidic, Brockmann I

Sigma-Aldrich

199966

Aluminum oxide

Aluminum oxide pore size 58&#160;Å, ~150&#160;mesh

Sigma-Aldrich

267740

Aluminum oxide

Aluminum oxide activated, basic, Brockmann I

Sigma-Aldrich

199443

Aluminum oxide

form

powder

form

powder

form

powder

form

powder

manufacturer/tradename

CAMAG 507-C-I

manufacturer/tradename

CAMAG 504-C-I

manufacturer/tradename

-

manufacturer/tradename

CAMAG 5016-A-I

technique(s)

ion chromatography: suitable

technique(s)

ion chromatography: suitable

technique(s)

ion chromatography: suitable

technique(s)

solid phase extraction (SPE): suitable

impurities

<0.03% Fe2O3, <0.03% SiO2, <0.4% Na2O

impurities

<0.03% Fe2O3, <0.03% SiO2, <0.4% Na2O

impurities

<0.03% Fe2O3, <0.4% Na2O

impurities

<0.03% Fe2O3, <0.4% Na2O

particle size

40-160 μm

particle size

50-300 mesh

particle size

~150 mesh

particle size

~150 mesh

General description

The mechanism of formation of protective scales of α-Al2O3 on surfaces of binary M-Al (M = Fe, Ni or Co) alloys at high temperatures has been studied. Activated aluminum oxides having different acidities and water concentrations (having Brockmann activity I-V) can easily detect various types of water (namely free water, pore water, and bound water) on the aluminum oxide present in soils.

Application

Aluminum oxide (Alumina, Al2O3) has been used in the preparation of one-step self-assembled double-helices of multiwalled carbon nanotubes (MWCNT) arrays (composed of Fe nanoparticles bound to SiOx micro-particles).
Aluminum oxide (neutral) has been used in the preparation of alumina supported silver (Ag/Al2O3) catalyst suitable for selective catalytic reduction of nitrogen oxides (NOx) by hydrocarbons (HC-SCR).

Packaging

Brockmann aluminum oxides are suitable for column chromatography and adsorptive filtration.

Storage Class Code

13 - Non Combustible Solids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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

Customers Also Viewed

Slide 1 of 5

1 of 5

Aluminum oxide activated, acidic, Brockmann I, free-flowing, Redi-Dri&#8482;

Sigma-Aldrich

799300

Aluminum oxide

Aluminum oxide nanoparticles, 30-60&#160;nm particle size (TEM), 20&#160;wt. % in H2O

Sigma-Aldrich

642991

Aluminum oxide

Aluminum oxide 99.997% trace metals basis

Sigma-Aldrich

202606

Aluminum oxide

Aluminum oxide nanopowder, &lt;50&#160;nm particle size (TEM)

Sigma-Aldrich

544833

Aluminum oxide

The role of Ag O Al entities in adsorption of NCO species and reduction of NO x.
Deng H, et al.
Catalysis Today, 258, 35-40 (2015)
Carbon nanotube bundles self-assembled in double helix microstructures.
Cervantes-Sodi F, et al.
Carbon, 50(10), 3688-3693 (2012)
Thermoanalytical studies of water on activated alumina, Brockmann I-V,(acid, neutral, basic) from- 60? to+ 700? C.
Hampson JW and Bleam WF.
Thermochimica Acta, 288(1), 179-189 (1996)
Prescott R and Graham MJ.
Oxidation of Metals, 38(3-4), 233-254 (1992)
Chien-Chih Lin et al.
Nanoscale, 5(17), 8090-8097 (2013-07-25)
We demonstrated a promising route for enhancing temperature sensitivity, improving saturation voltage, and reducing power consumption of the MOS(p) tunneling temperature sensors by introducing ultrathin Al2O3 into the dielectric stacks. Detailed illustrations of the working mechanism and device concept are

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