Melting point :−100 °C(lit.)
Boiling point :50 °C(lit.)
Density :0.649 g/mL at 25 °C(lit.)
vapor density :2.97 (vs air)
vapor pressure :5.35 psi ( 20 °C)
refractive index :n20/D 1.369(lit.)
Flash point :<−30 °F
storage temp. :Flammables area
solubility :In methanol: 590 and 800 g/L at 5 and 10 °C, respectively. Miscible at higher temperatures (Kiser et al., 1961). Miscible with other aliphatic hydrocarbons, e.g., pentane, hexane, heptane, etc.
form :Liquid
pka :>14 (Schwarzenbach et al., 1993)
color :Clear colorless to slightly yellow
explosive limit :~7.7%
Odor Threshold :20ppm
Water Solubility :insoluble
BRN :1730736
Henry's Law Constant :1.69(atm?m³/mol) at 25 °C (Mackay and Shiu, 1981)
Exposure limits :ACGIH TLV: TWA and STEL for all isomers except n-hexane are 500 and 1,000 ppm, respectively (adopted).
Dielectric constant :1.8700000000000001
Stability :Stable, but may be moisture sensitive. Highly flammable. Incompatible with strong oxidizing agents.
CAS DataBase Reference :75-83-2(CAS DataBase Reference)
NIST Chemistry Reference :Butane, 2,2-dimethyl-(75-83-2)
EPA Substance Registry System :2,2-Dimethylbutane (75-83-2)

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 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 H336 May cause drowsiness or dizziness Specific target organ toxicity,single exposure; Narcotic effects Category 3 Warning P261, P271, P304+P340, P312,P403+P233, P405, P501 H411 Toxic to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 2
Precautionary statements:	P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P233 Keep container tightly closed. 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. P331 Do NOT induce vomiting.