Bis(trimethylsilyl)acetylene

Modify Date: 2025-08-21 12:21:21

Bis(trimethylsilyl)acetylene Structure
Bis(trimethylsilyl)acetylene structure
 Common Name Bis(trimethylsilyl)acetylene
CAS Number 14630-40-1 Molecular Weight 170.400
Density 0.8±0.1 g/cm3 Boiling Point 134.6±8.0 °C at 760 mmHg
Molecular Formula C8H18Si2 Melting Point 21-24 °C(lit.)
MSDS N/A Flash Point 17.1±11.5 °C

 Names

Name Bis(trimethylsilyl)acetylene
Synonym More Synonyms

 Chemical & Physical Properties

Density 0.8±0.1 g/cm3
Boiling Point 134.6±8.0 °C at 760 mmHg
Melting Point 21-24 °C(lit.)
Molecular Formula C8H18Si2
Molecular Weight 170.400
Flash Point 17.1±11.5 °C
Exact Mass 170.094696
LogP 4.03
Vapour Pressure 9.9±0.2 mmHg at 25°C
Index of Refraction 1.420
Storage condition 0-6°C
Water Solubility MAY DECOMPOSE

 Safety Information

Hazard Codes F:Flammable;Xi:Irritant;
Risk Phrases R11;R36/37/38
Safety Phrases S16-S26-S36
RIDADR UN 1993 3/PG 2
WGK Germany 3
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%

 Synonyms

BTMSA
2,5-Disilahex-3-yne, 2,2,5,5-tetramethyl-
Silane, 1,1'-(1,2-ethynediyl)bis[1,1,1-trimethyl-
SILANE, 1,2-ETHYNEDIYLBIS[TRIMETHYL-
trimethyl(2-trimethylsilylethynyl)silane
MFCD00008276
EINECS 238-671-9
ethyne-1,2-diylbis(trimethylsilane)
1,2-Bis-trimethylsilanyl-ethyne
1,2-Ethynediylbis(trimethylsilane)
Bis(trimethylsilyl)acetylene
Bis(trimethylsilyl) Acetylene
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