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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

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Certificates of Analysis (COA)

Lot/Batch Number
MKCH4294
MKCD3483
MKBZ0320V
MKBW0732V
MKBP0729V

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David M Brown et al.
Toxicology letters, 224(1), 147-156 (2014-01-28)
We investigated the effects of silica particles and nanoparticles (NPs) (50 nm and 200 nm) with a neutral and positively charged surface when dispersed in saline, bovine serum albumin (BSA) or lung lining fluid (LLF) 24 h post instillation into
Ji Yeong Won et al.
Journal of biomedical nanotechnology, 9(5), 886-890 (2013-06-28)
In this study, we developed a simple and fast isolation tool of Escherichia coli O157:H7 (E. coli O157:H7) using a magnet nanoparticle embedded silica nanotube (MNSNT) for the detection of E. coli O157:H7 in the sample with nucleic acid based
Shanthini Muthukoori et al.
Journal of biomedical nanotechnology, 9(5), 907-914 (2013-06-28)
Gout is an abnormality in the body resulting in the accumulation of uric acid mainly in joints. Dissolution of uric acid crystals into soluble allantoin by the enzyme uricase might provide a better alternative for the treatment of gout. This
Seunghwan Yeon et al.
Journal of nanoscience and nanotechnology, 13(11), 7653-7657 (2013-11-20)
We report the enhancement of the photoluminescence (PL) intensity of GaN-based light-emitting diode (LED) structures by using of a surface coating of polystyrene (PS)/silica (SiO2) core-shell nanospheres. PS/SiO2 core-shell nanosphere-coated LEDs show the highest PL intensity among various type LEDs.
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
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