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440345

Supelco

Glass spheres

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Empirical Formula (Hill Notation):
O2Si
CAS Number:
Molecular Weight:
60.08
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
SB.52

grade

high-purity grade

Quality Level

form

powder

technique(s)

LPLC: suitable

surface area

125 m2/g

matrix

Silica

matrix active group

silica

mean particle size

9-13 μm

density

1.1 g/mL at 25 °C (lit.)

suitability

suitable for acidity or alkalinity (alkalinity < 0.5 meq/g ASTM D 3100)

SMILES string

O=[Si]=O

InChI

1S/O2Si/c1-3-2

InChI key

VYPSYNLAJGMNEJ-UHFFFAOYSA-N

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1 of 4

This Item
86578NIST2066NIST92
Glass spheres

440345

Glass spheres

Tetraethyl orthosilicate &#8805;99.0% (GC)

86578

Tetraethyl orthosilicate

K-411 Glass microspheres NIST&#174; SRM&#174; 2066

NIST2066

K-411 Glass microspheres

Soda-lime glass NIST&#174; SRM&#174; 92, (low boron)

NIST92

Soda-lime glass

form

powder

form

liquid

form

powder

form

-

technique(s)

LPLC: suitable

technique(s)

-

technique(s)

-

technique(s)

XRF: suitable

surface area

125 m2/g

surface area

-

surface area

-

surface area

-

matrix

Silica

matrix

-

matrix

-

matrix

-

matrix active group

silica

matrix active group

-

matrix active group

-

matrix active group

-

General description

Silica is a naturally occurring material in minerals, flint and in some plants in crystalline phase. Silica used in industries is in synthetic form. Surface area, pore volume, pore size and particle size are independently controllable to some extent. The crystalline silica may be classified based on atmospheric pressure as:
a. Quartz = 1143K
b. Tridymite 1143 - 1743K
c. Cristobalite = 1743, over 1973K it forms amorphous vitreous silica glass.

Application

Low density filler for coatings and plastics.
Silica glass spheres are low density filler for coatings and plastics. Silica was used in synthesis of silicalite. Silica was also used to assist the catalytic growth of oxide and nitride nanowires.

Features and Benefits

Light weight, crush-resistant filler. Imparts dimensional stability, reduces warpage, reduces plastic melt viscosity and provides multidirectional orientation in reinforced composites.

Physical form

Hollow, spherical non-porous glass beads.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type P3 (EN 143) respirator cartridges


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The Heat Capacities of Quartz, Cristobalite and Tridymite at Low Temperatures
Anderson, C. Travis.
Journal of the American Chemical Society, 58, 568-570 (1936)
Silica-assisted catalytic growth of oxide and nitride nanowires.
Tang, C. C., et al.
Chemical Physics Letters, 333, 12-15 (2001)
Norma A Sánchez-Flores et al.
Journal of colloid and interface science, 323(2), 359-364 (2008-05-27)
Well crystallized silicalite-1 has been obtained from three sources of amorphous silica, namely, rice hull ashes, commercial Davisil, and a fume silica from Aldrich. The silicas were first dissolved in glycerol according to a recently described reaction. This reaction transforms
Keren B Turton et al.
PloS one, 10(5), e0127243-e0127243 (2015-05-20)
Signal transducer and activator of transcription 3 (STAT3) is a key mediator of leukocyte differentiation and proliferation. The 3' end of STAT3 transcripts is subject to two alternative splicing events. One results in either full-length STAT3α or in STAT3β, which
Manuela Piazzi et al.
FASEB journal : official publication of the Federation of American Societies for Experimental Biology, 29(4), 1383-1394 (2015-01-01)
The phosphoinositide-dependent signal transduction pathway has been implicated in the control of a variety of biologic processes, such as the regulation of cellular metabolism and homeostasis, cell proliferation and differentiation, and apoptosis. One of the key players in the regulation

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