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Key Documents

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:
UNSPSC Code:
12352302
PubChem Substance ID:
NACRES:
NA.23

Quality Level

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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