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701491

Sigma-Aldrich

Silicon dioxide, alumina doped

nanoparticles, dispersion, <50 nm particle size, 20 wt. % in H2O, ≥99.9% trace metals basis

Synonym(s):

silicic anhydride, alumina doped preparation

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About This Item

Linear Formula:
(SiO2)x(Al2O3)y
Molecular Weight:
60.08
MDL number:
MFCD06202255
UNSPSC Code:
12352302
PubChem Substance ID:
329762295
NACRES:
NA.23

Quality Level

100

Assay

≥99.9% trace metals basis

form

dispersion
nanoparticles

composition

aluminum, 7.5 wt. %

concentration

20 wt. % in H2O

surface area

75.5 m2/g , BET

particle size

<50 nm

pH

4-6(neat)

density

1.087 g/mL at 25 °C

SMILES string

O=[Si]=O.O=[Al]O[Al]=O

InChI

1S/2Al.O2Si.3O/c;;1-3-2;;;

InChI key

HNPSIPDUKPIQMN-UHFFFAOYSA-N

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General description

Contains 0.025 wt. % Ammonium hydroxide.

Legal Information

Product of Engi-Mat Co.

Storage Class Code

12 - Non Combustible Liquids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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’.

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Wei Yan et al.
Journal of nanoscience and nanotechnology, 13(5), 3371-3376 (2013-07-19)
The present study compares the effects of two different material processing techniques on modifying hydrophilic SiO2 nanoparticles. In one method, the nanoparticles undergo plasma treatment by using a custom-developed atmospheric-pressure non-equilibrium plasma reactor. With the other method, they undergo chemical
Yaswanth Kuthati et al.
Journal of nanoscience and nanotechnology, 13(4), 2399-2430 (2013-06-15)
The advent of Nanotechnology has paved a way for improved disease treatment strategies, the most noteworthy being the mesoporous silica nanoparticles (MSNs) which have gained much recent attention in the field of cancer therapy and its diagnosis. The flaws of
Graham J Edgar et al.
Nature, 506(7487), 216-220 (2014-02-07)
In line with global targets agreed under the Convention on Biological Diversity, the number of marine protected areas (MPAs) is increasing rapidly, yet socio-economic benefits generated by MPAs remain difficult to predict and under debate. MPAs often fail to reach
Cecilia Lalander et al.
Environmental technology, 34(17-20), 2657-2662 (2014-02-18)
With a growing world population, the lack of reliable water sources is becoming an increasing problem. Reusing greywater could alleviate this problem. When reusing greywater for crop irrigation it is paramount to ensure the removal of pathogenic organisms. This study
Jeong Ha Yoo et al.
Journal of nanoscience and nanotechnology, 13(11), 7615-7619 (2013-11-20)
Recently, magnetic and luminescent composite silica with structure of micro- and nanospheres containing both magnetic (Fe3O4) nanoparticles (MPs) and quantum dots (QDs) has attracted great interests. In this study, we have prepared core-shell structure of silica spheres in which magnets
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