Trimethylsilanol

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Trimethylsilanol
IUPAC name Hydroxytrimethylsilane
Other names Trimethylhydroxysilane
Identifiers
CAS number [1066-40-6]
PubChem 66110
SMILES C[Si](C)(C)O
Properties
Molecular formula C3H10OSi
Molar mass 90.196 g/mol
Boiling point

98.6 - 99 °C

Except where noted otherwise, data are given for
materials in their standard state
(at 25 °C, 100 kPa)

Infobox disclaimer and references

Trimethylsilanol (TMS), also trimethylhydroxysilane, is an organosilicon chemical compound with the formula (CH3)3SiOH, or C3H10OSi. It is an organic derivate of silane substituted with three methyls and one hydroxyl group. It is a volatile organic liquid with boiling point between 98.6-99 °C.

TMS is used to apply hydrophobic coating on silicate surfaces. It reacts with the silicon atoms of the substrate, coating the surface with a layer of methyl groups. A commercial example is Magic Sand.

TMS is a common contaminant in spacecraft atmospheres, where it is present due to outgassing of silicone-based materials.[1] It is a potential end group hydrolysis product of polydimethylsiloxane chains.

TMS, together with other silanols, is also being investigated as an antimicrobial agent.[2]

[edit] References

  1. ^ Trimethylsilanol, Harold L. Kaplan, Martin E. Coleman, and John T. James Spacecraft Maximum Allowable Concentrations for Selected Airborne Contaminants, Volume 1 (1994)
  2. ^ Yun-mi Kim, Samuel Farrah, Ronald H. Baney (2006). "Silanol - A novel class of antimicrobial agent". Electronic Journal of Biotechnology 9 (2): 176. doi:10.2225/vol9-issue2-fulltext-4.