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Merck
CN

31624

Silicon dioxide

acid washed and calcined, Analytical Reagent

Synonym(s):

Sand, white quartz, Quartz, Silicon dioxide

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About This Item

Linear Formula:
SiO2
CAS Number:
14808-60-7
Molecular Weight:
60.08
NACRES:
SB.52
PubChem Substance ID:
57648587
UNSPSC Code:
12352300
EC Number:
238-878-4
MDL number:
MFCD00011232

Key Documents

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Product Name

Silicon dioxide, acid washed and calcined, Analytical Reagent

InChI key

VYPSYNLAJGMNEJ-UHFFFAOYSA-N

InChI

1S/O2Si/c1-3-2

SMILES string

O=[Si]=O

form

granular

quality

acid washed and calcined, Analytical Reagent

impurities

≤0.01% in HCL soluble iron (Fe)
≤0.2% soluble in HCl

loss

≤0.10% loss on ignition, 900 °C

granulation

0.1-0.3 mm, coeff var ≥96%

anion traces

chloride (Cl-): ≤50 mg/kg

Quality Level

100

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Application

Silicon dioxide may be employed as insulating layer on top of the silicon in the fabrication of gold electrode, used for flow injection amperometric detection of organophosphorus (OP) nerve agents.

General description

Study of silicon-silicon dioxide structure at liquid nitrogen temperature by electron spin resonance spectra has been investigated. Diffusion coefficient and solubilities of several metals (Ag, Cu, Au, Pd, and Ti) in silicon dioxide have been discussed. Microcontact printing of self-assembled monolayers (SAMs) of alkylsiloxanes on the surface of silicon dioxide has been reported. Separation and characterization of silicon dioxide (SiO2) nanostructures in dietary supplements marketed in products specifically targeted for women has been proposed.

Storage Class

13 - Non Combustible Solids

wgk

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves, type N95 (US)

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Certificates of Analysis (COA)

Lot/Batch Number
STBK6338
STBJ3294
STBK6337
STBH4589
STBG6105V

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Jin-Hee Lim et al.
Journal of agricultural and food chemistry, 63(12), 3144-3152 (2015-03-05)
Nanomaterials are beginning to enter our daily lives through various consumer products as the result of technology commercialization. The development of methodologies to detect the presence of nanomaterials in consumer products is an essential element in understanding our exposure. In
Study of silicon-silicon dioxide structure by electron spin resonance I.
Nishi Y.
Jpn J. App. Phys., Part I, 10(1), 52-52 (1971)
Joseph Wang et al.
Biosensors & bioelectronics, 18(2-3), 255-260 (2002-12-18)
A flow-injection system with an organophosphorus-hydrolase (OPH)-biosensor detector has been developed and characterized for the rapid detection of organophosphorus (OP) nerve agents. The enzyme was immobilized onto a thin-film gold detector through a cystamine-glutaraldehyde coupling. Factors influencing the performance were
Microcontact printing of octadecylsiloxane on the surface of silicon dioxide and its application in microfabrication.
Xia Y, et al.
Journal of the American Chemical Society, 117(37), 9576-9577 (1995)
Diffusion of metals in silicon dioxide.
McBrayer JD, et al.
Journal of the Electrochemical Society, 133(6), 1242-1246 (1986)
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