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Tetramethylsilane

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Tetramethylsilane Basic information

Product Name:
Tetramethylsilane
Synonyms:
  • TetraMethylsilane, ACS reagent, NMR grade
  • TETRAMETHYLSILANE FOR THE CALIBRATION OF
  • Four Methylsilane
  • TetraMethylsilane ACS reagent, NMR grade, >=99.9%
  • Tetramethylsilane >=99.0% (GC)
  • TETRAMETHYLSILANE
  • TMS
  • SILICON TETRAMETHYL
CAS:
75-76-3
MF:
C4H12Si
MW:
88.22
EINECS:
200-899-1
Product Categories:
  • Organics
  • Analytical Chemistry
  • NMR Spectrometry
  • Si (Classes of Silicon Compounds)
  • Si-(C)4 Compounds
  • Standards for NMR
  • Alkyl Silanes
  • Organometallic Reagents
  • Organosilicon
  • TA - TE
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  • Analytical Standards
  • Analytical/Chromatography
  • Chemical Synthesis
  • OthersVapor Deposition Precursors
  • Precursors by Metal
  • NMROrganometallic Reagents
  • Analytical Standards
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  • Spectroscopy
  • TA - TE
  • NMR Reference StandardsAlphabetic
  • NMRStable Isotopes
  • organosilane
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  • T
Mol File:
75-76-3.mol
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Tetramethylsilane Chemical Properties

Melting point:
-99 °C (lit.)
Boiling point:
26-28 °C (lit.)
Density 
0.648 g/mL at 25 °C (lit.)
vapor pressure 
11.66 psi ( 20 °C)
refractive index 
n20/D 1.358(lit.)
RTECS 
VV5706000
Flash point:
−17 °F
storage temp. 
2-8°C
solubility 
0.02g/l
form 
liquid
Specific Gravity
0.648
color 
colorless
explosive limit
1.0-37.9%(V)
Water Solubility 
0.02 G/L (25 ºC)
Hydrolytic Sensitivity
1: no significant reaction with aqueous systems
Merck 
14,9229
BRN 
1696908
Stability:
Stable. Highly flammable - readily forms explosive mixtures with air. Note the boiling point close to room temperature, the low flash point and high vapour pressure. Incompatible with oxidizing agents. Refrigerate before opening.
InChIKey
CZDYPVPMEAXLPK-UHFFFAOYSA-N
CAS DataBase Reference
75-76-3(CAS DataBase Reference)
NIST Chemistry Reference
Silane, tetramethyl-(75-76-3)
EPA Substance Registry System
Tetramethylsilane (75-76-3)
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Safety Information

Hazard Codes 
Xn,F+
Risk Statements 
12-48/20/22-40-38-22
Safety Statements 
36-45-33-3/7-16-9-36/37
RIDADR 
UN 2810 6.1/PG 3
WGK Germany 
3
10
Autoignition Temperature
842 °F
TSCA 
Yes
HS Code 
2931 90 00
HazardClass 
3
PackingGroup 
I
Hazardous Substances Data
75-76-3(Hazardous Substances Data)

MSDS

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Tetramethylsilane Usage And Synthesis

Chemical Properties

Colorless clear liquid

Uses

NMR reference standard. In semiconductor applications (chemical vapor deposition). Tetramethylsilane (TMS) is used as a chemical shift reference for proton, carbon-13, and silicon-29 analysis in organic solvents and is given 0 as its chemical shift position.

Definition

ChEBI: An organosilicon compound that is silane in which the hydrogens have been replaced by methyl groups.

General Description

A colorless, mildly acidic volatile liquid. Flash point 0°F. Boiling point 78°F. A serious fire hazard. Mildly toxic by ingestion. Emits acrid smoke and fumes when heated to high temperatures. Less dense than water and insoluble in water, but soluble in most organic solvents. Used as an aviation fuel and as an internal standard for nmr analytical instruments.

Air & Water Reactions

Highly flammable. Tetramethylsilane is insoluble in water.

Reactivity Profile

Hydrides, such as Tetramethylsilane, are reducing agents and react rapidly and dangerously with oxygen and with other oxidizing agents, even weak ones. Thus, they are likely to ignite on contact with alcohols. Hydrides are incompatible with acids, alcohols, amines, and aldehydes.

Hazard

Flammable, high fire risk.

Health Hazard

May cause toxic effects if inhaled or absorbed through skin. Inhalation or contact with material may irritate or burn skin and eyes. Fire will produce irritating, corrosive and/or toxic gases. Vapors may cause dizziness or suffocation. Runoff from fire control or dilution water may cause pollution.

Fire Hazard

HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames. Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water.

Purification Methods

Distil it from conc H2SO4 (after shaking with it) or LiAlH4, through a 5ft vacuum-jacketed column packed with glass helices into an ice-cooled condenser, then percolate it through silica gel to remove traces of halide. [Beilstein 4 IV 3875.]

Tetramethylsilane Preparation Products And Raw materials

Preparation Products

TetramethylsilaneSupplier

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