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S5631

Sigma-Aldrich

Silicon dioxide

~99%, 0.5-10 μm (approx. 80% between 1-5 μm)

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
EC Number:
238-878-4
MDL number:
MFCD00011232
UNSPSC Code:
12352300
PubChem Substance ID:
329824458
NACRES:
SB.52

assay

~99%

Quality Level

200

form

powder

particle size

0.5-10 μm (approx. 80% between 1-5 μm)

SMILES string

O=[Si]=O

InChI

1S/O2Si/c1-3-2

InChI key

VYPSYNLAJGMNEJ-UHFFFAOYSA-N

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Linkage

Historically called amorphous.

Preparation Note

A naturally occurring microcrystalline silica which has been finely ground.

pictograms

Health hazard
GHS08

signalword

Danger

hcodes

H372

Hazard Classifications

STOT RE 1 Inhalation

target_organs

Lungs

Storage Class

6.1D - Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

wgk_germany

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable

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American journal of physiology. Lung cellular and molecular physiology, 310(2), L121-L132 (2015-11-27)
Silicosis is a systemic disease caused by inhaling silicon dioxide (SiO2). Phagocytosis of SiO2 in the lungs initiates an inflammatory cascade that results in fibroblast proliferation and migration followed by fibrosis. According to previous data from our laboratory, monocyte chemotactic
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