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79-29-8

Name 2,3-DIMETHYLBUTANE
CAS 79-29-8
EINECS(EC#) 201-193-6
Molecular Formula C6H14
MDL Number MFCD00008925
Molecular Weight 86.18
MOL File 79-29-8.mol

Chemical Properties

Appearance colourless liquid
Melting point  -129 °C
Boiling point  58 °C(lit.)
density  0.662 g/mL at 25 °C(lit.)
vapor density  3 (vs air)
vapor pressure  7.41 psi ( 37.7 °C)
refractive index  n20/D 1.375(lit.)
Fp  −28 °F
storage temp.  Flammables area
solubility  In methanol: 495, 593, 760, and 1,700 g/L at 5, 10, 15, and 20 °C, respectively. Miscible at higher temperatures (Kiser et al., 1961).
form  Liquid
pka >14 (Schwarzenbach et al., 1993)
color  Colorless
Stability: Stable. Flammable. Readily forms explosive mixtures with air. Note low flash point. Incompatible with strong oxidizing agents, oxygen.
explosive limit ~7.7%
Odor Threshold 0.42ppm
Water Solubility  Soluble in water (1mg/ml @22°C), DMSO, ethanol, acetone.
BRN  1730737
Henry's Law Constant 1.28(atm?m3/mol) at 25 °C (Mackay and Shiu, 1981)
Dielectric constant 1.8899999999999999
Exposure limits ACGIH TLV: TWA and STEL for all isomers except n-hexane are 500 and 1,000 ppm, respectively (adopted).
InChIKey ZFFMLCVRJBZUDZ-UHFFFAOYSA-N
LogP 3.42
CAS DataBase Reference 79-29-8(CAS DataBase Reference)
EPA Substance Registry System 2,3-Dimethylbutane (79-29-8)

Safety Data

Hazard Codes  F,Xn
Risk Statements 
R11:Highly Flammable.
R65:Harmful: May cause lung damage if swallowed.
Safety Statements 
S16:Keep away from sources of ignition-No smoking .
S23:Do not breathe gas/fumes/vapor/spray (appropriate wording to be specified by the manufacturer) .
S33:Take precautionary measures against static discharges .
S62:If swallowed, do not induce vomiting: seek medical advice immediately and show this container or label .
RIDADR  UN 2457 3/PG 2
WGK Germany  3
RTECS  EJ9350000
Autoignition Temperature 788 °F
TSCA  Yes
HazardClass  3
PackingGroup  II
HS Code  29011000
Safety Profile
Probably an irritant and narcotic in high concentration. A very dangerous fire and explosion hazard when exposed to heat or flame; can react vigorously with oxidizing materials. Keep away from heat and open flame. To fight fire, use foam, CO2, dry chemical. When heated to decomposition it emits acrid smoke and irritating fumes.
Hazardous Substances Data 79-29-8(Hazardous Substances Data)

Hazard Information

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