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Methyltrimethoxysilane

Application
Product Name
Methyltrimethoxysilane
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
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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
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)
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

H315Causes skin irritation

H317May cause an allergic skin reaction

H319Causes serious eye irritation

H320Causes eye irritation

H335May cause respiratory irritation

Precautionary statements

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

P233Keep container tightly closed.

P240Ground/bond container and receiving equipment.

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P370+P378In case of fire: Use … for extinction.

P405Store locked up.

P403+P235Store in a well-ventilated place. Keep cool.

P501Dispose of contents/container to..…

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
246174
Product name
Trimethoxymethylsilane
Purity
98%
Packaging
250ml
Price
$39.3
Updated
2021/03/22
Sigma-Aldrich
Product number
8.14178
Product name
Trimethoxymethylsilane
Purity
for synthesis
Packaging
250 mL
Price
$40.24
Updated
2021/03/22
Sigma-Aldrich
Product number
246174
Product name
Trimethoxymethylsilane
Purity
98%
Packaging
1l
Price
$127
Updated
2021/03/22
TCI Chemical
Product number
M0660
Product name
Trimethoxy(methyl)silane
Purity
>98.0%(GC)
Packaging
25mL
Price
$14
Updated
2021/03/22
TCI Chemical
Product number
M0660
Product name
Trimethoxy(methyl)silane
Purity
>98.0%(GC)
Packaging
100mL
Price
$21
Updated
2021/03/22
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Methyltrimethoxysilane Chemical Properties,Usage,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.

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

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Methyltrimethoxysilane Suppliers

Shandong Wanda Organosilicon New Materials Co., Ltd.
Tel
021-54177116
Fax
+86 (21) 54302881 ex 804
Email
sales@wandachem.com
Country
China
ProdList
50
Advantage
68
Qufu Chenguang Chemical Co., Ltd
Tel
0537-4409155
Fax
0537-4631369
Email
sales@silanechem.com
Country
China
ProdList
111
Advantage
60
Condice Chemical (Hubei) Co., Ltd.
Tel
Email
3127859172@qq.com
Country
China
ProdList
2747
Advantage
58
Hubei yongkuo Technology Co., Ltd
Tel
027-59223108- ;027-59223108-
Fax
027-59223108
Email
1248580099@qq.com;1248580055@qq.com
Country
China
ProdList
9009
Advantage
58
Weihai Zhaochuan Biotechnology Co., Ltd.
Tel
0631-5260113- ;
Email
53702483@qq.com;53702483@qq.com
Country
China
ProdList
468
Advantage
58
Shanghai Boyle Chemical Co., Ltd.
Tel
Mr Qiu:021-50182298(Demestic market) Miss Xu:021-50180596(Abroad market)
Fax
+86-21-57758967
Email
sales@boylechem.com
Country
China
ProdList
2213
Advantage
55
J & K SCIENTIFIC LTD.
Tel
010-82848833- ;010-82848833-
Fax
86-10-82849933
Email
jkinfo@jkchemical.com;market6@jkchemical.com
Country
China
ProdList
96500
Advantage
76
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
21-61259100-
Fax
86-21-61259102
Email
sh@meryer.com
Country
China
ProdList
40264
Advantage
62
JIANGXI AIFEIMU TECHNOLOGY CO.,LTD
Tel
570-6040289-
Fax
+86-570-6259526
Email
sales@afmpharm.com;
Country
China
ProdList
98
Advantage
61
Alfa Aesar
Tel
400-610-6006; 021-67582000
Fax
021-67582001/03/05
Email
saleschina@alfa-asia.com
Country
China
ProdList
30159
Advantage
84
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View Lastest Price from Methyltrimethoxysilane manufacturers

Hebei Guanlang Biotechnology Co., Ltd.
Product
Methyltrimethoxysilane 1185-55-3
Price
US $9.90/KG
Min. Order
1KG
Purity
99%
Supply Ability
5tons
Release date
2021-10-21
Zhuozhou Wenxi import and Export Co., Ltd
Product
Methyltrimethoxysilane 1185-55-3
Price
US $15.00-10.00/KG
Min. Order
1KG
Purity
99%+ HPLC
Supply Ability
Monthly supply of 1 ton
Release date
2021-07-11
Zhuozhou Wenxi import and Export Co., Ltd
Product
Methyltrimethoxysilane 1185-55-3
Price
US $15.00-10.00/KG
Min. Order
1KG
Purity
99%+ HPLC
Supply Ability
Monthly supply of 1 ton
Release date
2021-07-09

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