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Linear Formula:


MDL Number:


EC No.:



(2N) 99% Silicotungstic Acid
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(3N) 99.9% Silicotungstic Acid
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(4N) 99.99% Silicotungstic Acid
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(5N) 99.999% Silicotungstic Acid
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Silicotungstic Acid Properties (Theoretical)

Compound Formula H4O40SiW12
Molecular Weight 2878.17
Appearance Liquid
Melting Point 25°C
Boiling Point N/A
Density 4.5 g/mL
Solubility in H2O N/A
Exact Mass 2877.216687
Monoisotopic Mass 2877.216687

Silicotungstic Acid Health & Safety Information

Signal Word N/A
Hazard Statements N/A
Hazard Codes N/A
RTECS Number N/A
Transport Information N/A

About Silicotungstic Acid

Silicotungstic Acid is generally immediately available in most volumes, including bulk quantities. American Elements can produce materials to custom specifications by request, in addition to custom compositions for commercial and research applications and new proprietary technologies. American Elements also casts any of the rare earth metals and most other advanced materials into rod, bar or plate form, as well as numerous other machined shapes and in the form of solutions and organometallic compounds. Ultra high purity and high purity forms also include metal powder, submicron powder and nanomaterials, targets for thin film deposition, and pellets for chemical vapor deposition (CVD) and physical vapor deposition (PVD) applications. American Elements produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM testing standards. Typical and custom packaging is available, as is additional technical and safety (MSDS) data. Please contact us for information on lead time and pricing above.

Silicotungstic Acid Synonyms

Tungstosilicic acid; silicic acid; tetrakis(tungsten oxide); Silane - tungsten; Wolframosilicic acid; silicic acid; tetrakis(tungsten oxide); Orthosilicic acid - trioxotungsten (1:12); silicic acid (H4SiO4), compd. with trioxotungsten (1:12)

Chemical Identifiers

Linear Formula H4[Si(W3O10)4]
MDL Number N/A
EC No. 234-719-8
Pubchem CID 25113560
IUPAC Name silicic acid; 1,3,5-trioxa-2λ6,4λ6,6λ6-tritungstacyclohexane 2,2,4,4,6,6-hexaoxide
SMILES O[Si](O)(O)O.O=[W]1(=O)O[W]( =O)(=O)O[W](=O)(=O)O1.O=[W ]1(=O)O[W](=O)(=O)O[W](=O)( =O)O1.O=[W]1(=O)O[W](=O)(= O)O[W](=O)(=O)O1.O=[W]1(=O )O[W](=O)(=O)O[W](=O)(=O)O1
InchI Identifier InChI=1S/H4O4Si.36O.12W/c1-5(2,3)4;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;/h1-4H;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

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 Tungsten products. Tungsten (atomic symbol: W, atomic number: 74) is a Block D, Group 6, Period 6 element with an atomic weight of 183.84. The number of electrons in each of tungsten's shells is [2, 8, 18, 32, 12, 2] and its electron configuration is [Xe] 4f14 5d4 6s2. Tungsten Bohr ModelThe tungsten atom has a radius of 139 pm and a Van der Waals radius of 210 pm. Tungsten was discovered by Torbern Bergman in 1781 and first isolated by Juan José Elhuyar and Fausto Elhuyar in 1783. In its elemental form, tungsten has a grayish white, lustrous appearance. Elemental TungstenTungsten has the highest melting point of all the metallic elements and a density comparable to that or uranium or gold and about 1.7 times that of lead. Tungsten alloys are often used to make filaments and targets of x-ray tubes. It is found in the minerals scheelite (CaWO4) and wolframite [(Fe,Mn)WO4]. In reference to its density, Tungsten gets its name from the Swedish words tung and sten, meaning heavy stone.


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.


August 11, 2022
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