Melting point :>0°C
Boiling point :53 °C(lit.)
Density :0.695 g/mL at 25 °C(lit.)
vapor pressure :4.18 psi ( 20 °C)
refractive index :n20/D 1.388(lit.)
Flash point :<−30 °F
storage temp. :Store below +30°C.
solubility :Miscible with organic solvents.
form :liquid
color :colorless
Specific Gravity :0.695
Water Solubility :reacts
Hydrolytic Sensitivity :4: no reaction with water under neutral conditions
BRN :906752
InChIKey :CWMFRHBXRUITQE-UHFFFAOYSA-N
CAS DataBase Reference :1066-54-2(CAS DataBase Reference)
NIST Chemistry Reference :(Trimethylsilyl)acetylene(1066-54-2)
EPA Substance Registry System :Trimethylsilylacetylene (1066-54-2)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H225 Highly Flammable liquid and vapour Flammable liquids Category 2 Danger P210,P233, P240, P241, P242, P243,P280, P303+ P361+P353, P370+P378,P403+P235, P501 H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362 H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
Precautionary statements:	P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P233 Keep container tightly closed. P240 Ground/bond container and receiving equipment. P241 Use explosion-proof electrical/ventilating/lighting/…/equipment. P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.