Melting point :−59 °C(lit.)
Boiling point :101 °C(lit.)
Density :0.963 g/mL at 25 °C
Tg :-123
vapor density :>1 (vs air)
vapor pressure :<5 mm Hg ( 25 °C)
refractive index :n20/D 1.377(lit.)
Flash point :>270 °C (518 °F)
storage temp. :2-8°C
solubility :Chloroform (Slightly), Ethyl Acetate (Sparingly), Toluene (Sparingly)
form :Oily Liquid
Specific Gravity :0.853
color :Clear colorless
Odor :Odorless
Water Solubility :PRACTICALLY INSOLUBLE
Merck :14,8495
Dielectric constant :2.7（Ambient）
Stability :Stable. Incompatible with strong oxidizing agents.
EPA Substance Registry System :Dimethyl siloxanes and silicones (63148-62-9)

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 H304 May be fatal if swallowed and enters airways Aspiration hazard Category 1 Danger 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 H340 May cause genetic defects Germ cell mutagenicity Category 1A, 1B Danger H350 May cause cancer Carcinogenicity Category 1A, 1B Danger H372 Causes damage to organs through prolonged or repeated exposure Specific target organ toxicity, repeated exposure Category 1 Danger P260, P264, P270, P314, P501 H410 Very toxic to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 1 Warning P273, P391, P501
Precautionary statements:	P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P273 Avoid release to the environment. P301+P310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. 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. P331 Do NOT induce vomiting.