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Tetramethyl orthosilicate

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Identification
Molecular formula
C4H12O4Si
CAS number
681-84-5
IUPAC name
tetramethyl silicate
State
State

At room temperature, tetramethyl orthosilicate is a liquid. It is volatile and can evaporate quickly when exposed to air.

Melting point (Celsius)
-2.00
Melting point (Kelvin)
271.15
Boiling point (Celsius)
121.00
Boiling point (Kelvin)
394.15
General information
Molecular weight
152.23g/mol
Molar mass
152.2340g/mol
Density
0.9337g/cm3
Appearence

Tetramethyl orthosilicate is a colorless, transparent liquid. It is an organosilicon compound and is often used as a chemical intermediate and for the production of silicone resins.

Comment on solubility

Solubility of Tetramethyl Silicate

Tetramethyl silicate (Si(CH3)4), often referred to as TMOS, is a fascinating compound known for its unique solubility properties. Its characteristics can be summarized as follows:

  • Solvent Polarity: TMOS is primarily soluble in organic solvents such as diethyl ether, toluene, and ethanol, which are non-polar or slightly polar. This is due to its largely organic structure, which allows it to interact favorably with other organic compounds.
  • Water Solubility: In contrast, tetramethyl silicate exhibits very low solubility in water. The high degree of methyl substitution limits its ability to form hydrogen bonds with water molecules, leading to the statement: "Like dissolves like!"
  • Influence of Temperature: Its solubility can be influenced by temperature. Typically, increasing temperature enhances solubility in many organic solvents, making it an ideal candidate for various applications in chemical processes.

Overall, the solubility of tetramethyl silicate highlights the significance of molecular structure in determining the interactions between compounds, reflecting the broader principles of solubility in chemistry.

Interesting facts

Interesting Facts about Tetramethyl Silicate

Tetramethyl silicate is a fascinating compound often used in various industrial and laboratory applications. Here are some compelling facts about this versatile silicate:

  • Structural Unique: Tetramethyl silicate is an example of a silicate ester, showcasing a silicon atom bonded to four methyl groups. This unique structure contributes to its diverse chemical reactivity.
  • Solvent Properties: One of its most notable uses is as a solvent in organic reactions, particularly for silanes and other silica-related compounds. Its ability to dissolve various substances makes it invaluable in the lab.
  • Precursor for Silica: Tetramethyl silicate is widely used as a precursor in the production of silica. Upon hydrolysis, it converts into silica, making it crucial in the manufacture of glass and ceramics.
  • Potential in Coatings: The compound is explored for applications in coatings technology due to its ability to form durable films when cured, offering valuable protective properties.
  • Green Chemistry: It is often regarded as a more environmentally friendly alternative compared to other silicon compounds due to its lower toxicity and minimal environmental impact.

As one researcher remarked, “The versatility of tetramethyl silicate in both synthetic and practical applications reflects the innovative pathways of chemical research.” This compound continues to inspire chemists worldwide as they explore its properties and applications.

Synonyms
Tetramethoxysilane
Tetramethyl orthosilicate
TETRAMETHYL SILICATE
681-84-5
Methyl silicate
Methyl orthosilicate
Methyl Silicate 39
Silicic acid, tetramethyl ester
Silane, tetramethoxy-
Methyl silicate 28
Tetramethylsilikat
Methyl silicate ((MeO)4Si)
TL 190
Methyl silicate ((CH3)4SiO4)
Silicic acid (H4SiO4), tetramethyl ester
Silicic acid, methyl ester of ortho-
TSL 8114
NSC 67383
SIT 7510.0
DTXSID3027291
19D35VPL66
NSC-67383
Methyl silicate 51
Tetra-methyl orthosilicate
Tetramethylsilikat [Czech]
M-Silicate 51
Methyl silicate 56
HSDB 5511
MSP 150
EINECS 211-656-4
UN2606
AI3-11596
tetramethoxy silane
EC 211-656-4
DTXCID207291
TETRAMETHYL ESTER SILICATE
TETRAMETHYL SILICATE [HSDB]
12002-26-5
211-656-4
234-412-9
colcoat ms 51
dtxsid10884499
einecs 234-412-9
kbm 04
methyl hydrogen siloxane
methyl silicate (acgih)
mkc silicate ms 51
mkc silicate ms 56
mkc silicate ms 56s
mkc silicate ms 60
ms 51
silane, tetramethoxy
silicic acid tetramethyl ester
silicic acid, methyl ester of ortho
silicon methoxide (si(ome)4)
silicon methylate
silres mse 100
tetramethyl ester of silicic acid
TMOS
tetramethylorthosilicate
MFCD00008341
UNII-19D35VPL66
Methyl silicate, ((MeO)4Si)
Dynasil M
tetramethoxy-silane
tetramethylortho silicate
tetramethylortho-silicate
Si(OMe)4
Si(OCH3)4
SCHEMBL17814
Tetramethyl orthosilicate, 98%
CHEMBL3183859
Tetramethyl orthosilicate, >=99%
NSC67383
WLN: 1O-SI-O1&O1&O1
Tox21_200780
AKOS015902512
UN 2606
s15925
NCGC00248830-01
NCGC00258334-01
CAS-681-84-5
LS-13029
Methyl orthosilicate [UN2606] [Poison]
NS00041977
T0588
EN300-395310
A836042
Q377159
Tetramethyl orthosilicate, purum, >=98.0% (GC)
Tetramethyl orthosilicate, puriss., >=99.0% (GC)
F0001-1787
Tetramethyl orthosilicate, deposition grade, >=98%, >=99.9% trace metals basis