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1873-77-4
???:
???(??????)??
???(??):
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???:
TRIS(TRIMETHYLSILYL)SILANE
???(??):
TTMSS;(TMS)3SiH;1,1,1,3,3,3-HEXAMETHYL-2-(TRIMETHYLSILYL)TRISILANE;Tri(trimethylsilyl)silane;TRIS(TRIMETHYLSILYL)SILANE;TRIS(TRIMETHYLSILYL)SILANE-D;Tris(trimethylsilyl)silane,96%;TRIS(TRIMETHYLSILYL)SILANE 97+%;TRIS(TRIMETHYLSILYL)SILANE 96%;T**Tris(trimethylsilyl)silane 97%
CBNumber:
CB5176173
???:
C9H28Si4
??? ??:
248.66
MOL ??:
1873-77-4.mol
MSDS ??:
SDS

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?? ?
73 °C/5 mmHg (lit.)
??
0.806 g/mL at 25 °C (lit.)
???
n20/D 1.489(lit.)
???
55 °C
?? ??
Flammables area
??? ??
??
??
Clear, colourless
Specific Gravity
0.806
???
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Hydrolytic Sensitivity
8: reacts rapidly with moisture, water, protic solvents
??
Light Sensitive
Merck
14,9757
BRN
1923953
InChI
InChI=1S/C9H28Si4/c1-11(2,3)10(12(4,5)6)13(7,8)9/h10H,1-9H3
InChIKey
SQMFULTZZQBFBM-UHFFFAOYSA-N
SMILES
[Si](C)(C)(C)[SiH]([Si](C)(C)C)[Si](C)(C)C
CAS ??????
1873-77-4(CAS DataBase Reference)
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  • ?? ? ?? ??
  • ?? ? ???? ?? (GHS)
??? ?? Xi
?? ???? ?? 10-36/37/38
????? 16-26-36
????(UN No.) UN 1993 3/PG 3
WGK ?? 3
F ?????? 10-23
TSCA No
?? ?? 3
???? II
HS ?? 29319090
???? ??? 3 - Flammable liquids
Hazard Classifications Flam. Liq. 3
????(GHS): Flame (GHS02)
?? ?: Warning
??·?? ??:
?? ??·?? ?? ?? ?? ?? ?? ? ?? ?? P- ??
H226 ??? ?? ? ?? ??? ?? ?? 3 ??
??????:
P210 ?·???·??·????? ????? - ?? ???.
NFPA 704
2
2 0

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clear colorless to pale yellow liquid

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Tris(trimethylsilyl)silane is used in hydrosilylations of carbonyls, radical reactions, reductions of acid chlorides, and carbon-halogen bonds. It acts a mediator of radical reactions and considered to be a nontoxic substitute for tri-n-butylstannane in radical reactions. It forms complexes with transition metals and main group elements. Further, it is utilized in carbon-carbon bond forming reactions.

?? ??

Tris(trimethylsilyl)silane is an organosilicon generally used as a radical reducing agent for xanthates, organic halides, isocyanides, selenides, and acid chlorides. It is also used for hydrosilylation of alkenes, alkynes, and dialkyl ketones.

Purification Methods

Purify it by fractional distillation and taking the middle cut. Store it under N2 or Ar as it is PYROPHORIC and is an IRRITANT. [Chatgilialoglu et al. J Org Chem 53 3641 1988, Balestri et al. J Org Chem 56 678 1991, Chatgilialoglu Acc Chem Res 25 188 1992, NMR: Gilman et al. J Organomet Chem 4 163 1965.]

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