Methyltriacetoxysilane

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Names

[ CAS No. ]:
4253-34-3

[ Name ]:
Methyltriacetoxysilane

[Synonym ]:
Silanetriol, 1-methyl-, triacetate
Triacetoxymethylsilane
methyl-triacetoxysilane
Methylsilanetriyl triacetate
methyl-silanetriol
Methyl-Triacethoxysilane
methyltriacetoxy-silan
Methyltriacetoxysilane
silanetriol
triacetoxy-methyl-silane
triacetoxy(methyl)silane
k10s
EINECS 224-221-9
MFCD00008694
Triacetoxy-methyl-silan

Chemical & Physical Properties

[ Density]:
1.2±0.1 g/cm3

[ Boiling Point ]:
221.3±0.0 °C at 760 mmHg

[ Melting Point ]:
40-45 °C(lit.)

[ Molecular Formula ]:
C7H12O6Si

[ Molecular Weight ]:
220.252

[ Flash Point ]:
85.0±0.0 °C

[ Exact Mass ]:
220.040314

[ PSA ]:
78.90000

[ LogP ]:
1.37

[ Vapour Pressure ]:
0.1±0.4 mmHg at 25°C

[ Index of Refraction ]:
1.424

MSDS

Click to get detail MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
VV4500000
CHEMICAL NAME :
Silane, methyltriacetoxy-
CAS REGISTRY NUMBER :
4253-34-3
BEILSTEIN REFERENCE NO. :
1788668
LAST UPDATED :
199712
DATA ITEMS CITED :
5
MOLECULAR FORMULA :
C7-H12-O6-Si
MOLECULAR WEIGHT :
220.28
WISWESSER LINE NOTATION :
1VO-SI-1&OV1&OV1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
2060 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
85JCAE "Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J., Prague, Czechoslovakia, Avicenum, 1986 Volume(issue)/page/year: -,1229,1986 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - M1920 No. of Facilities: 1320 (estimated) No. of Industries: 34 No. of Occupations: 23 No. of Employees: 11261 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - M1920 No. of Facilities: 17139 (estimated) No. of Industries: 138 No. of Occupations: 82 No. of Employees: 231529 (estimated) No. of Female Employees: 30464 (estimated)

Safety Information

[ Symbol ]:

GHS07

[ Signal Word ]:
Warning

[ Hazard Statements ]:
H315-H319-H335

[ Precautionary Statements ]:
P261-P305 + P351 + P338

[ Personal Protective Equipment ]:
dust mask type N95 (US);Eyeshields;Gloves

[ Hazard Codes ]:
Xi:Irritant;

[ Risk Phrases ]:
R36/37/38

[ Safety Phrases ]:
S26-S36

[ RIDADR ]:
UN1759

[ WGK Germany ]:
2

[ RTECS ]:
VV4500000

[ Packaging Group ]:
III

[ Hazard Class ]:
8

[ HS Code ]:
2931900090

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

  • Methyltrichlorosilane
  • Chloromethyl silane
  • Sodium acetate
  • acetic acid
  • Chlorotrimethylsilane
  • Ethanoic anhydride

DownStream

  • Methyl(tripropoxy)silane
  • methyl-tris(2-methylpropoxy)silane

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%

Articles

Use of medical-grade methyl triacetoxy silane crosslinked silicone for facial prostheses.

J. Prosthet. Dent. 48(1) , 86-8, (1982)

The urethanes, PVC, acrylic resins, and silicones are still the most popular among a large number of materials being used to fabricate facial prostheses. Each material has advantages and disadvantages...

Solvation of lithium salts within single-phase dimethyl siloxane bisphenol-A carbonate block copolymer. Spiegel EF, et al.

Polymer 41(9) , 3365-69, (2000)

Silicone Vapor Poisoning of Catalytic Methane Sensors Chilton, J. E., et al.

Proceedings of the fourth WVU Conference on Coal Mine Electrotechnology , (1978)


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