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 |  | 3-METHYLHEXANE Basic information |  
  
 |  | 3-METHYLHEXANE Chemical Properties |  
 | Melting point  | −119 °C(lit.) |  | Boiling point  | 91 °C(lit.) |  | density  | 0.687 g/mL at 25 °C(lit.) |  | vapor pressure  | 2.13 psi ( 37.7 °C) |  | refractive index  | n20/D 1.388(lit.) |  | Fp  | 25 °F |  | solubility  | Soluble in acetone, alcohol, benzene, chloroform, ligroin, and ether (Weast, 1986). Miscible with
liquid aliphatic hydrocarbons. |  | form  | clear liquid |  | color  | Colorless to Almost colorless |  | explosive limit | ~7% |  | Odor Threshold | 0.84ppm |  | Water Solubility  | 2.64mg/L(25 ºC) |  | BRN  | 1718739 |  | Henry's Law Constant | 2.38 at 25 °C (Mackay and Shiu, 1981) |  | LogP | 4.118 (est) |  | CAS DataBase Reference | 589-34-4(CAS DataBase Reference) |  | EPA Substance Registry System | 3-Methylhexane (589-34-4) |  
  
 |  | 3-METHYLHEXANE Usage And Synthesis |  
 | Chemical Properties | CLEAR COLOURLESS LIQUID |  | Physical properties | Clear, colorless liquid with an odor similar to hexane. An odor threshold concentration of 840
ppbv was reported by Nagata and Takeuchi (1990). |  | Uses | Organic synthesis, oil extender solvent. |  | Uses | 3-Methylhexane can be used as a model alkane to study:
 - Cu-catalyzed hydrocarboxylation of simple alkanes to corresponding branched monocarboxylic acids in aqueous medium at low-temperature.
 - Au-catalyzed oxygenation of alkanes with H2O2 in acetonitrile.
 - FeCI3 catalyzed photooxygenation of simple alkanes to corresponding alcohols in presence of atmospheric O2.
 
 
  |  | Definition | ChEBI: 3-methylhexane is an alkane that is hexane substituted by a methyl group at position 3. It has a role as a human metabolite. It is an alkane and a volatile organic compound. |  | Hazard | Flammable, dangerous fire risk. |  | Source | Schauer et al. (1999) reported 3-methylhexane in a diesel-powered medium-duty truck
exhaust at an emission rate of 310 μg/km. 
California Phase II reformulated gasoline contained 3-methylhexane at a concentration of 16.2
g/kg. Gas-phase tailpipe emission rates from gasoline-powered automobiles with and without
catalytic converters were 2.95 and 415 mg/km, respectively (Schauer et al., 2002). |  | Environmental fate | Photolytic. Based on a reported photooxidation reaction rate constant of 7.20 x 10-12
cm3/molecule?sec with OH radicals, the half-life of 3-methylhexane is 20 h (Altshuller, 1990). 
Chemical/Physical. Complete combustion in air produces carbon dioxide and water vapor. 3-
Methylhexane will not hydrolyze because it does not contain a hydrolyzable functional group. |  | Purification Methods | Purify it as for 2-methylhexene. [Beilstein 1 IV 399.] |  
  
 |  | 3-METHYLHEXANE Preparation Products And Raw materials |  
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