Methyltriethoxysilane

Modify Date: 2024-01-02 19:00:20

Methyltriethoxysilane Structure
Methyltriethoxysilane structure
 Common Name Methyltriethoxysilane
CAS Number 2031-67-6 Molecular Weight 178.301
Density 0.9±0.1 g/cm3 Boiling Point 144.5±8.0 °C at 760 mmHg
Molecular Formula C7H18O3Si Melting Point <-40ºC
MSDS Chinese USA Flash Point 23.9±0.0 °C
Symbol GHS02
GHS02		 Signal Word Warning

 Names

Name Methyltriethoxysilane
Synonym More Synonyms

 Chemical & Physical Properties

Density 0.9±0.1 g/cm3
Boiling Point 144.5±8.0 °C at 760 mmHg
Melting Point <-40ºC
Molecular Formula C7H18O3Si
Molecular Weight 178.301
Flash Point 23.9±0.0 °C
Exact Mass 178.102524
PSA 27.69000
LogP 1.73
Vapour density >1 (vs air)
Vapour Pressure 6.4±0.3 mmHg at 25°C
Index of Refraction 1.402
Stability Stability Moisture-sensitive. Flammable - note low flash point. Incompatible with acids, oxidizing agents, moisture, water.
Water Solubility INSOLUBLE

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
VV4640000
CHEMICAL NAME :
Silane, methyltriethoxy-
CAS REGISTRY NUMBER :
2031-67-6
BEILSTEIN REFERENCE NO. :
1742453
LAST UPDATED :
199701
DATA ITEMS CITED :
7
MOLECULAR FORMULA :
C7-H18-O3-Si
MOLECULAR WEIGHT :
178.34
WISWESSER LINE NOTATION :
2O-SI-1&O2&O2

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
Standard Draize test
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Rodent - rabbit
REFERENCE :
85JCAE "Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J., Prague, Czechoslovakia, Avicenum, 1986 Volume(issue)/page/year: -,1229,1986
TYPE OF TEST :
Standard Draize test
ROUTE OF EXPOSURE :
Administration into the eye
SPECIES OBSERVED :
Rodent - rabbit
REFERENCE :
ATDAEI Acute Toxicity Data. Journal of the American College of Toxicology, Part B. (Mary Ann Liebert, Inc., 1651 Third Ave., New York, NY 10128) V.1- 1990- Volume(issue)/page/year: 12,575,1993 ** ACUTE TOXICITY DATA **
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
8570 uL/kg
TOXIC EFFECTS :
Behavioral - somnolence (general depressed activity) Gastrointestinal - changes in structure or function of salivary glands Gastrointestinal - other changes
REFERENCE :
ATDAEI Acute Toxicity Data. Journal of the American College of Toxicology, Part B. (Mary Ann Liebert, Inc., 1651 Third Ave., New York, NY 10128) V.1- 1990- Volume(issue)/page/year: 12,575,1993
TYPE OF TEST :
LCLo - Lowest published lethal concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
4000 ppm/8H
TOXIC EFFECTS :
Behavioral - tremor Lungs, Thorax, or Respiration - dyspnea Gastrointestinal - changes in structure or function of salivary glands
REFERENCE :
JIHTAB Journal of Industrial Hygiene and Toxicology. (Cambridge, MA) V.18-31, 1936-49. For publisher information, see AEHLAU. Volume(issue)/page/year: 30,332,1948
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Rodent - rabbit
DOSE/DURATION :
13300 uL/kg
TOXIC EFFECTS :
Behavioral - somnolence (general depressed activity) Behavioral - ataxia Lungs, Thorax, or Respiration - other changes
REFERENCE :
ATDAEI Acute Toxicity Data. Journal of the American College of Toxicology, Part B. (Mary Ann Liebert, Inc., 1651 Third Ave., New York, NY 10128) V.1- 1990- Volume(issue)/page/year: 12,575,1993 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X6921 No. of Facilities: 339 (estimated) No. of Industries: 2 No. of Occupations: 3 No. of Employees: 3473 (estimated)

 Safety Information

Symbol GHS02
GHS02
Signal Word Warning
Hazard Statements H226
Precautionary Statements P210-P403 + P235
Personal Protective Equipment Eyeshields;Faceshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter
Hazard Codes Xi
Risk Phrases R10
Safety Phrases S16
RIDADR UN 1993 3/PG 3
WGK Germany 3
RTECS VV4640000
Packaging Group III
Hazard Class 3
HS Code 29310095

 Synthetic Route

 Customs

HS Code 2931900090
Summary 2931900090. other organo-inorganic compounds. VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tariff:6.5%. General tariff:30.0%

 Articles1

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A clear and deep understanding of zeolite crystallization with the addition of organosilane is desirable for the reasonable design and preparation of hierarchical zeolites. Herein, the effects of diff...

 Synonyms

Methyltriethoxysilane
Silquest A
ici-ep5850
Methyltriethoxylsilane
Dynasylan MTES
Triethoxy(methyl)silane
A 162
Triethoxymethylsilane
HD-120
CM9050
MTES
Triethoxysilylmethane
Silane, methyltriethoxy-
Silane, triethoxymethyl-
Methyl triethoxysilane
ND-27
EINECS 217-983-9
MFCD00009066
monomethyl triethoxy silane
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