Skip to Content
Merck
All Photos(1)

Documents

84880

Sigma-Aldrich

Silicon dioxide

purum p.a., acid purified

Synonym(s):

Cristobalite, Quartz, Sand, Silica

Sign Into View Organizational & Contract Pricing


About This Item

Linear Formula:
SiO2
CAS Number:
Molecular Weight:
60.08
MDL number:
UNSPSC Code:
12352303
PubChem Substance ID:
NACRES:
NA.21

grade

purum p.a.

Quality Level

form

powder or crystals

quality

acid purified

loss

≤0.1% loss on ignition

refractive index

n20/D 1.544 (lit.)

particle size

40-200 mesh

mp

1610 °C (lit.)

density

2.6 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤200 mg/kg

cation traces

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

SMILES string

O=[Si]=O

InChI

1S/O2Si/c1-3-2

InChI key

VYPSYNLAJGMNEJ-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

General description

Silicon dioxide is one of the important constituents of sedimentary rock bauxite, basalt fibers and ceramic fibers. It is added to cement for improving the hydraulic properties of cement.
may contain dark particles

Application

Silicon dioxide may be employed in the preparation of calcium silicide.

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’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Customers Also Viewed

Slide 1 of 4

1 of 4

Silica 99.8%

Supelco

381276

Silica

Sea sand extra pure

Supelco

1.07711

Sea sand

QUARTZ FINE GRANULAR, WASHED AND CALCINED FOR ANALYSIS

Supelco

1.07536

QUARTZ FINE GRANULAR,

Sea sand purified by acid and calcined for analysis

Supelco

1.07712

Sea sand

Eagleson M.
Concise Encyclopedia Chemistry, 50-50 (1994)
Eagleson M.
Concise Encyclopedia Chemistry, 196-196 (1994)
Eagleson M.
Concise Encyclopedia Chemistry, 129-129 (1994)
Eagleson M.
Concise Encyclopedia Chemistry, 117-117 (1994)
Eagleson M.
Concise Encyclopedia Chemistry, 165-165 (1994)

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service