Methyltrimethoxysilane

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Methyltrimethoxysilane

Product Name: Methyltrimethoxysilane
CAS No.: 1185-55-3
Chemical Name: Methyltrimethoxysilane
Synonyms: MTMS;TRIMETHOXYMETHYLSILANE;Silane, trimethoxymethyl-;methyltrimethoxy-silan;D20;CM9100;Z 6070;HD-119;A-1630;KH- 131
CBNumber: CB7744411
Molecular Formula: C4H12O3Si
Formula Weight: 136.22
MOL File: 1185-55-3.mol

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Methyltrimethoxysilane Property

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
color: colorless
Specific Gravity: 0.955
Water Solubility: decomposes
Hydrolytic Sensitivity: 7: reacts slowly with moisture/water
Sensitive: Moisture Sensitive
BRN: 1736151
Stability:: Stable, but moisture sensitive. Highly flammable. Incompatible with water, strong acids, strong oxidizing agents.
InChIKey: BFXIKLCIZHOAAZ-UHFFFAOYSA-N
LogP: -2.4-0.7 at 20℃
CAS DataBase Reference: 1185-55-3(CAS DataBase Reference)
NIST Chemistry Reference: Silane, trimethoxymethyl-(1185-55-3)
EPA Substance Registry System: Trimethoxymethylsilane (1185-55-3)

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Safety

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

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H225Highly Flammable liquid and vapour

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P233Keep container tightly closed.

P240Ground/bond container and receiving equipment.

P241Use explosion-proof electrical/ventilating/lighting/…/equipment.

P242Use only non-sparking tools.

P243Take precautionary measures against static discharge.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 8.14178
Product name: Trimethoxymethylsilane
Purity: for synthesis
Packaging: 250ML
Price: $59.2
Updated: 2024/03/01

Sigma-Aldrich

Product number: 246174
Product name: Trimethoxymethylsilane
Purity: 98%
Packaging: 250ml
Price: $47.5
Updated: 2024/03/01

Sigma-Aldrich

Product number: 246174
Product name: Trimethoxymethylsilane
Purity: 98%
Packaging: 1l
Price: $154
Updated: 2024/03/01

TCI Chemical

Product number: M0660
Product name: Trimethoxy(methyl)silane
Purity: >98.0%(GC)
Packaging: 25mL
Price: $16
Updated: 2024/03/01

TCI Chemical

Product number: M0660
Product name: Trimethoxy(methyl)silane
Purity: >98.0%(GC)
Packaging: 100mL
Price: $24
Updated: 2024/03/01

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Methyltrimethoxysilane Chemical Properties,Usage,Production

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.

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.

Preparation

Methyltrimethoxysilane is usually prepared from methyltrichlorosilane and methanol:
CH3SiCl3 + 3 CH3OH → CH3Si(OCH3)3 + 3 HCl

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.

Flammability and Explosibility

Flammable

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

Methyltrichlorosilane

Preparation Products

Dimethoxymethylphenylsilane

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View Lastest Price from Methyltrimethoxysilane manufacturers

Hebei Zhuanglai Chemical Trading Co.,Ltd

Product: Methyltrimethoxysilane 1185-55-3
Price: US $99.00-35.00/kg
Min. Order: 1kg
Purity: 99%
Supply Ability: 20ton
Release date: 2024-05-11

Hebei Weibang Biotechnology Co., Ltd

Product: Methyltrimethoxysilane 1185-55-3
Price: US $0.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: 500000kg
Release date: 2024-11-01

Hebei Chuanghai Biotechnology Co,.LTD

Product: Methyltrimethoxysilane 1185-55-3
Price: US $10.00/KG
Min. Order: 1KG
Purity: 99.8%
Supply Ability: 100tons
Release date: 2024-08-23

1185-55-3, MethyltrimethoxysilaneRelated Search:

Methyltriacetoxysilane Methyltriethoxysilane SILANE COUPLING AGENT Methyltrichlorosilane Methyltris(methylethylketoxime)silane 3-Methacryloxypropyltrimethoxysilane 3-Aminopropyltriethoxysilane Vinyltriacetoxysilane Triethoxyvinylsilane Trimethoxysilylpropanethiol N-[3-(Trimethoxysilyl)propyl]ethylenediamine Methyltrimethoxysilane 3-Chloropropyltriethoxysilane Vinyltrimethoxysilane Vinyl tris(2-methoxyethoxy) silane Phenyltriethoxysilane Trimethoxy[2-(7-oxabicyclo[4.1.0]hept-3-yl)ethyl]silane 3-Chloropropyltrimethoxysilane

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TRIMETHOXYMETHYLSILANE FOR SYNTHESIS

TriMethoxyMethylsilane puruM, >=98.0% (GC)

Trimethoxymethylsila

Alkoxy crosslinker A-1630

DC Z-6070

Trimethoxysilylmethane

A-1630

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1185-55-3

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Organometallic Reagents