Tetramethylsilane

Name: Tetramethylsilane
Brand: SIAL
Price: 93.75 USD
Availability: InStock

analytical standard, suitable for NMR (spectroscopy), ACS reagent

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25 ML

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About This Item

Linear Formula:

Si(CH₃)₄

CAS Number:

75-76-3

Molecular Weight:

88.22

Beilstein/REAXYS Number:

1696908

EC Number:

200-899-1

MDL number:

MFCD00008274

UNSPSC Code:

12142201

PubChem Substance ID:

329769617

NACRES:

NA.24

Key Documents

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grade

ACS reagent
analytical standard

Quality Level

200

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.)

suitability

suitable for NMR (spectroscopy)

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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Show Differences

1 of 4

This Item	1.08183	T24007	523771
Supelco 87920 Tetramethylsilane	Sigma-Aldrich 1.08183 Tetramethylsilane	Sigma-Aldrich T24007 Tetramethylsilane	Sigma-Aldrich 523771 Tetramethylsilane
application(s) environmental	application(s) -	application(s) -	application(s) -
form liquid	form liquid	form liquid	form liquid
format neat	format -	format -	format -
Quality Level 200	Quality Level 100	Quality Level 200	Quality Level 100
grade ACS reagent, for NMR spectroscopy, analytical standard	grade -	grade ACS reagent, NMR grade	grade electronic grade
storage temp. 2-8°C	storage temp. 2-8°C	storage temp. 2-8°C	storage temp. 2-8°C

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.[1]

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.[2] 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.[3]

pictograms

GHS02

signalword

Danger

hcodes

H224

pcodes

P210 - P233 - P240 - P241 - P242 - P403 + P233

Hazard Classifications

Flam. Liq. 1

Storage Class

3 - Flammable liquids

wgk_germany

WGK 3

flash_point_f

-16.6 °F - closed cup

flash_point_c

-27 °C - closed cup

ppe

Eyeshields, Faceshields, 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)

Quantitative NMR: an applicable method for quantitative analysis of medicinal plant extracts and herbal products.

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

Hot filament-dissociation of (CH3)3SiH and (CH3)4Si, probed by vacuum ultra violet laser time of flight mass spectroscopy.

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

Variations on the chemical shift of TMS.

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

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