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Methyltrimethoxysilane

Application
Methyltrimethoxysilane
Methyltrimethoxysilane structure
CAS No.
1185-55-3
Chemical Name:
Methyltrimethoxysilane
Synonyms
MTMS;CM9100;Z 6070;HD-119;A-1630;DC Z-6070;silanea-163;Dynasylan MTMS;TrimethoxymethyL;unioncarbidea-163
CBNumber:
CB7744411
Molecular Formula:
C4H12O3Si
Formula Weight:
136.22
MOL File:
1185-55-3.mol

Methyltrimethoxysilane Properties

Melting point:
<-70°C
Boiling point:
102-104 °C(lit.)
Density 
0.955 g/mL at 25 °C(lit.)
vapor pressure 
2990 hPa (20 °C)
refractive index 
n20/D 1.371(lit.)
Flash point:
52 °F
storage temp. 
Store below +30°C.
form 
liquid
Specific Gravity
0.955
color 
colorless
Water Solubility 
decomposes
Sensitive 
Moisture Sensitive
Hydrolytic Sensitivity
7: reacts slowly with moisture/water
BRN 
1736151
Stability:
Stable, but moisture sensitive. Highly flammable. Incompatible with water, strong acids, strong oxidizing agents.
InChIKey
BFXIKLCIZHOAAZ-UHFFFAOYSA-N
CAS DataBase Reference
1185-55-3(CAS DataBase Reference)
EWG's Food Scores
1
FDA UNII
0HI0D71MCI
NIST Chemistry Reference
Silane, trimethoxymethyl-(1185-55-3)
EPA Substance Registry System
Trimethoxymethylsilane (1185-55-3)
SAFETY
  • Risk and Safety Statements
Symbol(GHS) 
GHS07,GHS02
Signal word  Danger
Hazard statements  H320-H315-H319-H335-H225-H317
Precautionary statements  P261-P305+P351+P338-P405-P501a-P210-P233-P240-P241+P242+P243-P264-P280-P303+P361+P353-P305+P351+P338+P337+P313-P370+P378-P403+P235-P501
Hazard Codes  F,Xi
Risk Statements  11-43
Safety Statements  16-24
RIDADR  UN 1993 3/PG 2
WGK Germany  3
RTECS  VV4650000
Autoignition Temperature 225 °C
TSCA  Yes
HazardClass  3
PackingGroup  II
HS Code  29310095
Toxicity LD50 orally in Rabbit: 11808 mg/kg LD50 dermal Rabbit > 9600 mg/kg

Methyltrimethoxysilane price More Price(24)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 246174 Trimethoxymethylsilane 98% 1185-55-3 250ml $39.3 2021-12-16 Buy
Sigma-Aldrich 8.14178 Trimethoxymethylsilane for synthesis 1185-55-3 250 mL $40.24 2021-12-16 Buy
Sigma-Aldrich 246174 Trimethoxymethylsilane 98% 1185-55-3 1l $127 2021-12-16 Buy
TCI Chemical M0660 Trimethoxy(methyl)silane >98.0%(GC) 1185-55-3 25mL $14 2021-12-16 Buy
TCI Chemical M0660 Trimethoxy(methyl)silane >98.0%(GC) 1185-55-3 100mL $21 2021-12-16 Buy

Methyltrimethoxysilane Chemical Properties,Uses,Production

Application

Methyltrimethoxysilane is highly miscible with standard organic solvents, such as alcohols, hydrocarbons and acetone. It is practically insoluble in neutral water and reacts only slowly to form silanols and higher condensation products. Addition of a hydrolytic catalyst (inorganic/organic acids, ammonia or amines) accelerates the hydrolysis of Methyltrimethoxysilane substantially.
As a Filler Modifier, Methyltrimethoxysilane is used mainly to render a wide range of surfaces and materials water repellent (e.g. mineral fillers, pigments, glass, cardboard). It may be used pure or in solution to treat fillers, using suitable mixing equipment. It may be necessary to first pre-treat the substrate with water and/or a catalyst. It is also used in the production of silicone resins and condensation-curing silicone rubber, used as an important component in sol-gel systems.
As one of the most common Alkoxy Crosslinkers, Methyltrimethoxysilane has high reactivity that precedes by nucleophilic substitution usually in the presence of acid or base catalysts.

Description

Trimethoxy (methyl) silane is an organosilicon compound. It can be used as a crosslinker in the preparation of polysiloxane polymers. It can also be used as an acid scavenge used in the formation of substituted azulenes from allenylsilanes and tropyl?ium tetrafluoroborate. It can also be used as the precursor for synthesis of flexible silica aerogels.

Chemical Properties

Colorless clear liquid

Uses

Methyltrimethoxysilane(MTMS) in combination with iron nitrate altered the pore structure dramatically. As the Crosslinking agent of RTV silicone rubber and glass fiber surface treatment agent and talk to agents outside of reinforced plastic laminated products in order to improve the mechanical strength, heat resistance, moisture resistance. Methyltrimethoxysilane is used as an acid scavenger, for example in the formation of substituted azulenes from allenylsilanes and tropyl-ium tetrafluoroborate.

Uses

Methyltrimethoxysilane is a reagent used in they synthesis of electronic materials and organometallic compounds. Used in the coating of carbon-fiber surfaces, as well as in the synthesis of nanocomposites.

General Description

Trimethoxymethylsilane (MTM) is an organosilicon compound widely used as a precursor for the preparation of silica-based materials, which finds the applications in various fields. Particularly in molecular assembly, linking nano building blocks, and selective synthesis oligosiloxane compounds. It can also be utilized as a crosslinker in the synthesis of polysiloxane polymers.

Purification Methods

Methyl trimethoxysilane [1185-55-3] M 136.2, b 102o/760mm, d 4 1.3687, n D 1.3711. Likely impurities are 1,3-dimethyltetramethoxy disiloxane (b 31o/1mm) and cyclic polysiloxanes, see methyl triethoxysilane. [Tamborski & Post J Org Chem 16 1400 1952, Seyferth & Rochow J Org Chem 20 250 1955, Beilstein 4 IV 4203.]

References

https://en.wikipedia.org/wiki/Methyltrimethoxysilane https://www.alfa.com/zh-cn/catalog/B23594/
Rao, A. V., et al. "Synthesis of flexible silica aerogels using methyltrimethoxysilane (MTMS) precursor." Journal of Colloid & Interface Science 300.1(2006):279-85.
Bhagat, Sharad D., et al. "Methyltrimethoxysilane based monolithic silica aerogels via ambient pressure drying." Microporous & Mesoporous Materials 100.1–3(2007):350-355.

Methyltrimethoxysilane Preparation Products And Raw materials

Raw materials

Preparation Products


Methyltrimethoxysilane Suppliers

Global( 365)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Jiangxi New jiayi New Materials Co., Ltd.
15988280056
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Hubei Co-Formula Material Tech Co., Ltd.
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ATK CHEMICAL COMPANY LIMITED
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View Lastest Price from Methyltrimethoxysilane manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2021-10-22 Methyltrimethoxysilane
1185-55-3
US $9.90 / KG 1KG 99% 5tons Hebei Guanlang Biotechnology Co., Ltd.
2021-07-13 Methyltrimethoxysilane
1185-55-3
US $15.00-10.00 / KG 1KG 99%+ HPLC Monthly supply of 1 ton Zhuozhou Wenxi import and Export Co., Ltd
2021-07-10 Methyltrimethoxysilane
1185-55-3
US $15.00-10.00 / KG 1KG 99%+ HPLC Monthly supply of 1 ton Zhuozhou Wenxi import and Export Co., Ltd

Methyltrimethoxysilane Spectrum


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