Skip to Content
Merck
CN

S5255

Sigma-Aldrich

Silica, fumed

powder, 0.008 μm

Synonym(s):

Silica, Silicic anhydride, Silicon dioxide, Silicon dioxide amorphous

Sign Into View Organizational & Contract Pricing

Select a Size


About This Item

Linear Formula:
SiO2
CAS Number:
Molecular Weight:
60.08
MDL number:
UNSPSC Code:
12352200
PubChem Substance ID:
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

form

powder

refractive index

n20/D 1.46 (lit.)

particle size

0.008 μm

density

2.3 lb/cu.ft at 25 °C (bulk density)(lit.)

cation traces

metal ions:, practically free

SMILES string

O=[Si]=O

InChI

1S/O2Si/c1-3-2

InChI key

VYPSYNLAJGMNEJ-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Features and Benefits

Has interesting thickening and thixotropic properties, and an enormous external surface area.

Other Notes

Particle sizes are for primary particles, which form branched, chain-like aggregates a few tenths of a micron long.

Storage Class Code

11 - Combustible Solids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

新产品
This item has

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Already Own This Product?

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

Visit the Document Library

Soania Mathur et al.
Journal of Parkinson's disease, 5(2), 263-268 (2015-02-28)
Despite an urgent need for new medications, clinical trials in Parkinson's have a relatively low rate of success. Although many reasons have been proposed for this, the opinions of patients and scientists, the two principal stakeholders, have not been widely
Marcelo Ramalho-Ortigão et al.
Parasites & vectors, 8, 298-298 (2015-05-30)
The Phlebotomus papatasi salivary protein PpSP15 was shown to protect mice against Leishmania major, suggesting that incorporation of salivary molecules in multi-component vaccines may be a viable strategy for anti-Leishmania vaccines. Here, we investigated PpSP15 predicted amino acid sequence variability
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
Danielle D Cloutier et al.
Applied and environmental microbiology, 81(15), 4904-4913 (2015-05-17)
Microbial communities within beach sand play a key role in nutrient cycling and are important to the nearshore ecosystem function. Escherichia coli and enterococci, two common indicators of fecal pollution, have been shown to persist in the beach sand, but
Luis Alberto Luévano-Martínez et al.
Biochimica et biophysica acta, 1847(6-7), 587-598 (2015-04-07)
Mitochondria play a key role in adaptation during stressing situations. Cardiolipin, the main anionic phospholipid in mitochondrial membranes, is expected to be a determinant in this adaptive mechanism since it modulates the activity of most membrane proteins. Here, we used

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