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Fumed Silica

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>99% Fumed Silica Powder
Pricing > SDS > Data Sheet >


Molecular Weight



White Powder

Melting Point

1,600° C

Boiling Point

2,230° C


~2.3-4.5 g/cm3

Size Range

7-1.4 nm

Specific Surface Area

200-390 m2/g



Health & Safety Info  |  MSDS / SDS

Signal Word N/A
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Fumed Silica is a powder composed of submicron-sized amorphous silica spheres arranged in branching chains of varying lengths. To produce fumed silica, silicon tetrachloride or quartz is burnded in a flame of hydrogen and oxygen to yield molten uniform-sized spheres that subsequently fuse into three-dimensional aggregates. Though the lengths and shapes of these chains differ (lending it an enormous external surface area), the size of the spheres themselves can be controlled during the preparation process. Fumed silica exhibits thixotropic properties and is typically used as a dessicant, thickening and anti-caking agent, and stabilizer in pharmaceuticals, cosmetics, paints and coatings, sealants, and gel-cell batteries (as an additive to acid-based electrolytes). American Elements can produce both hydrophilic and hydrophobic (treated) fumed silica in a range of different sizes and surface areas;


Pyrogenic silica; Silica fume; Fumed colloidal silica; Silica, fumed; silicic anhydride; fumed silicon dioxide; Aerosil; Cab-O-Sil; silicon dioxide amorphous, synthetic amorphous silica; colloidal silicon dioxide, ts-100 acematt fumed silica

Chemical Identifiers

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Packaging Specifications

Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Shipping documentation includes a Certificate of Analysis and Safety Data Sheet (SDS). Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes, and 36,000 lb. tanker trucks.

Related Elements

See more Silicon products. Silicon (atomic symbol: Si, atomic number: 14) is a Block P, Group 14, Period 3 element with an atomic weight of 28.085. Silicon Bohr MoleculeThe number of electrons in each of Silicon's shells is 2, 8, 4 and its electron configuration is [Ne] 3s2 3p2. The silicon atom has a radius of 111 pm and a Van der Waals radius of 210 pm. Silicon was discovered and first isolated by Jöns Jacob Berzelius in 1823. Silicon makes up 25.7% of the earth's crust, by weight, and is the second most abundant element, exceeded only by oxygen. The metalloid is rarely found in pure crystal form and is usually produced from the iron-silicon alloy ferrosilicon. Elemental SiliconSilica (or silicon dioxide), as sand, is a principal ingredient of glass, one of the most inexpensive of materials with excellent mechanical, optical, thermal, and electrical properties. Ultra high purity silicon can be doped with boron, gallium, phosphorus, or arsenic to produce silicon for use in transistors, solar cells, rectifiers, and other solid-state devices which are used extensively in the electronics industry.The name Silicon originates from the Latin word silex which means flint or hard stone.

Recent Research

Non-invasive, in vitro analysis of islet insulin production enabled by an optical porous silicon biosensor., Chhasatia, Rinku, Sweetman Martin J., Harding Frances J., Waibel Michaela, Kay Tom, Thomas Helen, Loudovaris Thomas, and Voelcker Nicolas H. , Biosens Bioelectron, 2017 May 15, Volume 91, p.515-522, (2017)

Multiplexed detection of lung cancer biomarkers in patients serum with CMOS-compatible silicon nanowire arrays., Gao, Anran, Yang Xun, Tong Jing, Zhou Lin, Wang Yuelin, Zhao Jianlong, Mao Hongju, and Li Tie , Biosens Bioelectron, 2017 May 15, Volume 91, p.482-488, (2017)

Arginine Silicate Inositol Complex Accelerates Cutaneous Wound Healing., Durmus, Ali Said, Tuzcu Mehmet, Ozdemir Oguzhan, Orhan Cemal, Sahin Nurhan, Ozercan Ibrahim Hanifi, Komorowski James Richard, Ali Shakir, and Sahin Kazim , Biol Trace Elem Res, 2017 May, Volume 177, Issue 1, p.122-131, (2017)

The Effects of Cerium Oxide Incorporation in Calcium Silicate Coating on Bone Mesenchymal Stem Cell and Macrophage Responses., Li, Kai, Yu Jiangming, Xie Youtao, You Mingyu, Huang Liping, and Zheng Xuebin , Biol Trace Elem Res, 2017 May, Volume 177, Issue 1, p.148-158, (2017)

Magnesium silicide nanoparticles as a deoxygenation agent for cancer starvation therapy., Zhang, Chen, Ni Dalong, Liu Yanyan, Yao Heliang, Bu Wenbo, and Shi Jianlin , Nat Nanotechnol, 2017 May, Volume 12, Issue 4, p.378-386, (2017)

Orange-red emitting europium doped strontium ortho-silicate phosphor prepared by a solid state reaction method., Sahu, Ishwar Prasad , Luminescence, 2017 May, Volume 32, Issue 3, p.364-374, (2017)

Comparison of silicon nanoparticles and silicate treatments in fenugreek., Nazaralian, Sanam, Majd Ahmad, Irian Saeed, Najafi Farzaneh, Ghahremaninejad Farrokh, Landberg Tommy, and Greger Maria , Plant Physiol Biochem, 2017 Mar 14, Volume 115, p.25-33, (2017)

Three-Dimensional Encapsulation of Saccharomyces Cerevisiae in Silicate Matrices Creates Distinct Metabolic States as Revealed by Gene Chip Analysis., Fazal, Zeeshan, Pelowitz Jennifer, Johnson Patrick E., Harper Jason Carl, C Brinker Jeffrey, and Jakobsson Eric , ACS Nano, 2017 Mar 13, (2017)

Optically efficient InAsSb nanowires for silicon-based mid-wavelength infrared optoelectronics., Zhuang, Q D., Alradhi H, Jin Z M., Chen X R., Shao J, Chen X, Sanchez Ana M., Cao Y C., Liu J Y., Yates P, et al. , Nanotechnology, 2017 Mar 10, Volume 28, Issue 10, p.105710, (2017)

Cytotoxicity control of silicon nanoparticles by biopolymer coating and ultrasound irradiation for cancer theranostic applications., Sviridov, A P., Osminkina L A., A Kharin Yu, Gongansky M B., Kargina J V., Kudryavtsev A A., Bezsudnova Yu I., Perova T S., Geloen A, Lysenko V, et al. , Nanotechnology, 2017 Mar 10, Volume 28, Issue 10, p.105102, (2017)


April 24, 2017
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