1,1,3,3-Tetramethyldisiloxane

Names

[ Name ]:
1,1,3,3-Tetramethyldisiloxane

[Synonym ]:
Dimethylsilyl ether
[Me2Si(H)]2O
Bis(dimethylsilyl) oxide
Tetramethyldisiloxane
Disiloxane, 1,1,3,3-tetramethyl-
[HSi(Me2)]2O
EINECS 221-906-4
sym-Tetramethyldisiloxane
1,1,3,3-Tetramethyldisiloxane
1,3-Dihydrotetramethyldisiloxane
HSiMe2OSiMe2H
DISILOXANE,1,1,3,3-TETRAMETHYL
MFCD00008256
Bis(dimethylsilyl) ether

Chemical & Physical Properties

[ Density]:
0.76 g/mL at 25 °C(lit.)

[ Boiling Point ]:
70.8±9.0 °C at 760 mmHg

[ Melting Point ]:
<-78ºC

[ Molecular Formula ]:
C₄H₁₄OSi₂

[ Molecular Weight ]:
134.324

[ Flash Point ]:
-3.4±18.7 °C

[ Exact Mass ]:
134.058319

[ PSA ]:
9.23000

[ LogP ]:
4.12

[ Vapour Pressure ]:
138.4±0.1 mmHg at 25°C

[ Index of Refraction ]:
n20/D 1.370(lit.)

[ Storage condition ]:
2-8°C

[ Water Solubility ]:
DECOMPOSES

MSDS

Click to get detail MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :: JN1000000

CHEMICAL NAME :: Disiloxane, 1,1,3,3-tetramethyl-

CAS REGISTRY NUMBER :: 3277-26-7

LAST UPDATED :: 199701

DATA ITEMS CITED :: 3

MOLECULAR FORMULA :: C4-H14-O-Si2

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 3 gm/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: -,1221,1986

TYPE OF TEST :: LC50 - Lethal concentration, 50 percent kill

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 400 gm/m3/2H

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: -,1221,1986

Safety Information

[ Hazard Codes ]:
F: Flammable;

[ Risk Phrases ]:
R11

[ Safety Phrases ]:
S16-S26-S36-S9-S33-S29

[ RIDADR ]:
UN 2924 3/PG 2

[ WGK Germany ]:
3

[ RTECS ]:
JN1000000

[ Packaging Group ]:
II

[ Hazard Class ]:
3

[ HS Code ]:
29310095

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

DownStream

Customs

[ HS Code ]: 2934999090

[ Summary ]:
2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%