87920
Tetramethylsilane
analytical standard, for NMR spectroscopy, ACS reagent
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About This Item
Linear Formula:
Si(CH3)4
CAS Number:
Molecular Weight:
88.22
Beilstein:
1696908
EC Number:
MDL number:
UNSPSC Code:
12142201
PubChem Substance ID:
NACRES:
NA.24
Recommended Products
grade
ACS reagent
analytical standard
for NMR spectroscopy
Quality Level
vapor pressure
11.66 psi ( 20 °C)
Assay
≥99.5% (GC)
form
liquid
autoignition temp.
842 °F
refractive index
n20/D 1.358 (lit.)
n20/D 1.359
bp
26-28 °C (lit.)
mp
−99 °C (lit.)
density
0.648 g/mL at 25 °C (lit.)
application(s)
environmental
format
neat
storage temp.
2-8°C
SMILES string
C[Si](C)(C)C
InChI
1S/C4H12Si/c1-5(2,3)4/h1-4H3
InChI key
CZDYPVPMEAXLPK-UHFFFAOYSA-N
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General description
Tetramethylsilane has been recommended by the International Union of Pure and Applied Chemistry (IUPAC) as a universal reference for all nuclides. It is commonly used as a reference standard in nuclear magnetic resonance (NMR) for measuring proton chemical shifts and the temperature dependence of the 1H chemical shift of TMS in solvents such as chloroform, methanol, and dimethylsulfoxide is studied.
Application
Tetramethylsilane may be used as an internal standard for the quantitative analysis of medicinal plant extracts and herbal products using the quantitative NMR (qNMR) method. It may also be used as an internal standard to investigate peroxide-based chemical systems for the crosslinking reactions carried on isotactic polypropylene using FT-IR spectrometry and proton nuclear magnetic resonance (1H NMR) techniques.
Signal Word
Danger
Hazard Statements
Precautionary Statements
Hazard Classifications
Flam. Liq. 1
Storage Class Code
3 - Flammable liquids
WGK
WGK 3
Flash Point(F)
-16.6 °F - closed cup
Flash Point(C)
-27 °C - closed cup
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
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Temperature dependence of the 1H chemical shift of tetramethylsilane in chloroform, methanol, and dimethylsulfoxide
Hoffman ER, et al.
Journal of Magnetic Resonance, 176(1), 87-98 (2005)
Monitoring the chemical crosslinking of propylene polymers through rheology
Romani F, et al.
Polymer, 43(4), 1115-1131 (2002)
Siddheshwar K Chauthe et al.
Phytochemical analysis : PCA, 23(6), 689-696 (2012-06-19)
Quantitative analysis and standardisation of plant extracts or herbal products is a tedious process requiring time-consuming sample preparation and analytical method development for the resolution of analyte peaks from the complex natural extract. Quantitative analysis by HPLC requires a pure
Roy E Hoffman
Journal of magnetic resonance (San Diego, Calif. : 1997), 163(2), 325-331 (2003-08-14)
The chemical shift of TMS is commonly assumed to be zero. However, it varies by over 1 ppm for 1H and 4 ppm for 13C and shows a correlation with the physical properties of the solvent. Using the commonly accepted
Ramesh C Sharma et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 65(3-4), 787-791 (2006-03-15)
The decomposition of trimethylsilane and tetramethylsilane has been investigated for the first time, using hot wire (catalytic) at various temperatures. Trimethylsilane is catalytic-dissociated in these species SiH(2), CH(3)SiH, CH(3), CH(2)Si. Time of flight mass spectroscopy signal of these species are
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