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(2N) 99% Tris(trimethylsiloxy)borate
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(3N) 99.9% Tris(trimethylsiloxy)borate
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(4N) 99.99% Tris(trimethylsiloxy)borate
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(5N) 99.999% Tris(trimethylsiloxy)borate
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Tris(trimethylsiloxy)boron Properties (Theoretical)

Compound Formula C9H27BO3Si3
Molecular Weight 278.38
Appearance Colorless liquid
Melting Point -35 °C
Boiling Point 183-185 °C
Density 0.831-0.834 g/mL
Solubility in H2O N/A
Refractive Index n20/D 1.386
Exact Mass 278.136105
Monoisotopic Mass 278.136105

Tris(trimethylsiloxy)boron Health & Safety Information

Signal Word Warning
Hazard Statements H226-H315-H319-H335
Hazard Codes F, Xi
Precautionary Statements P261-P305 + P351 + P338
Flash Point 41 °C
Risk Codes 10-36/37/38
Safety Statements 26-36
RTECS Number N/A
Transport Information UN 1993 3/PG III
WGK Germany 3
GHS Pictograms

About Tris(trimethylsiloxy)boron

Tris(trimethylsiloxy)boron (also known as Tris(trimethylsiloxy)borate or Tris(trimethylsiloxy) borate) is one of numerous organoborate compounds manufactured by American Elements under the trade name AE Organometallics™. Organometallics are useful reagents, catalysts, and precursor materials with applications in thin film deposition, industrial chemistry, pharmaceuticals, LED manufacturing, and others. American Elements supplies organometallic compounds in most volumes including bulk quantities and also can produce materials to customer specifications. Most materials can be produced in high and ultra high purity forms (99%, 99.9%, 99.99%, 99.999%, and higher) and to many standard grades when applicable including Mil Spec (military grade), ACS, Reagent and Technical Grades, Pharmaceutical Grades, Optical, Semiconductor, and Electronics Grades. Please request a quote above for more information on pricing and lead time.

Tris(trimethylsiloxy)boron Synonyms

Tris(trimethylsilyl)borate; Tris(trimethylsilyl) Borate; Boric acid tris(trimethylsilyl) este; Silanol, trimethyl-, triester with boric acid (H3BO3)

Chemical Identifiers

Linear Formula [(CH3)SiO]3B
MDL Number MFCD00051588
EC No. N/A
Beilstein Registry No. 1772733
Pubchem CID 78020
IUPAC Name tris(trimethylsilyl) borate
SMILES O(B(O[Si](C)(C)C)O[Si](C)(C)C)[Si](C)(C)C
InchI Identifier InChI=1S/C9H27BO3Si3/c1-14(2,3)11-10(12-15(4,5)6)13-16(7,8)9/h1-9H3

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 Boron products. Boron Bohr ModelBoron (atomic symbol: B, atomic number: 5) is a Block P, Group 13, Period 2 element with an atomic weight of 10.81. The number of electrons in each of boron's shells is 2, 3 and its electron configuration is [He] 2s2 2p1. The boron atom has a radius of 90 pm and a Van der Waals radius of 192 pm. Boron was discovered by Joseph Louis Gay-Lussac and Louis Jacques Thénard in 1808. It was first isolated by Humphry Davy, also in 1808. Boron is classified as a metalloid is not found naturally on earth. Elemental BoronAlong with carbon and nitrogen, boron is one of the few elements in the periodic table known to form stable compounds featuring triple bonds. Boron has an energy band gap of 1.50 to 1.56 eV, which is higher than that of either silicon or germanium. Boron is found in borates, borax, boric acid, colemanite, kernite, and ulexite.The name Boron originates from a combination of carbon and the Arabic word buraqu meaning borax.

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.


January 28, 2020
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