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83340

Sigma-Aldrich

Sand, white quartz

purum p.a., powder

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Synonym(s):
Quartz, Silicon dioxide
Linear Formula:
SiO2
CAS Number:
14808-60-7
Molecular Weight:
60.08
EC Number:
238-878-4
MDL number:
MFCD00011232
UNSPSC Code:
12352300
PubChem Substance ID:
329769066
NACRES:
NA.21

grade

purum p.a.

Quality Level

200

form

powder

loss

≤0.3% loss on ignition, 900 °C

particle size

>230 mesh

anion traces

chloride (Cl-): ≤50 mg/kg

cation traces

Ca: ≤200 mg/kg
Cd: ≤50 mg/kg
Co: ≤50 mg/kg
Cu: ≤50 mg/kg
Fe: ≤200 mg/kg
K: ≤1000 mg/kg
Na: ≤150 mg/kg
Ni: ≤50 mg/kg
Pb: ≤100 mg/kg
Zn: ≤50 mg/kg

SMILES string

O=[Si]=O

InChI

1S/O2Si/c1-3-2

InChI key

VYPSYNLAJGMNEJ-UHFFFAOYSA-N

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General description

The product is sand, white quartz (SiO2). Its reaction with alkaline NaNO3 solutions containing dissolved Al at 89°C has been investigated.

Application

Sand, white quartz (quartz) has been employed as a solid sample to evaluate the pore-volume variations during fluid-rock interaction experiments.

Analysis Note

metal and chloride traces refer to acid-soluble parts

Pictograms

Health hazard
GHS08

Signal Word

Danger

Hazard Statements

H372

Precautionary Statements

P260 - P264 - P270 - P314 - P501

Hazard Classifications

STOT RE 1 Inhalation

Target Organs

Lungs

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’.

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Pore-volume alteration measurements to evaluate scale formation during solid-fluid interactions.
Moola P, et al.
Mineralogical Magazine, 78(6), 1399-1403 (2014)
B R Bickmore et al.
Environmental science & technology, 35(22), 4481-4486 (2002-01-05)
Caustic NaNO3 solutions containing dissolved Al were reacted with quartz sand at 89 degrees C to simulate possible reactions between leaked nuclear waste and primary subsurface minerals at the U.S. Department of Energy's Hanford site in Washington. Nitrate-cancrinite began to
Mukesh K Jaiswal et al.
Journal of reproductive immunology, 112, 38-45 (2015-08-01)
The a2 isoform of vacuolar-ATPase (ATP6V0A2, referred to as a2V) is required for normal spermatogenesis and maturation of sperm. Treatment of male mice with anti-a2V disturbs the testicular cytokine/chemokine balance and leads to severe deficiencies of spermatogenesis. The aim of
Mukesh K Jaiswal et al.
Journal of leukocyte biology, 96(2), 337-347 (2014-03-14)
a2V is required for maturation of sperm. The decreased expression of a2V at the feto-maternal interphase causes poor pregnancy outcome. The present study examined the role of a2V in spermatogenesis and inflammatory network in the testis. A single dose of
G Cappelletti et al.
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In order to avoid both natural and artificial stone decay, mainly due to the interaction with atmospheric pollutants (both gases such as NOx and SO2 and particulate matter), polymeric materials have been widely studied as protective coatings enable to limit
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