|  | 3-METHYLHEPTANE Basic information |  
  
 |  | 3-METHYLHEPTANE Chemical Properties |  
 | Melting point  | -121--120°C |  | Boiling point  | 118 °C(lit.) |  | density  | 0.705 g/mL at 25 °C(lit.) |  | vapor pressure  | 0.73 psi ( 37.7 °C) |  | refractive index  | n20/D 1.398(lit.) |  | Fp  | 45 °F |  | form  | clear liquid |  | color  | Colorless to Almost colorless |  | Odor Threshold | 0.027ppm |  | Water Solubility  | 792 μg/kg at 25 °C (shake flask-GLC, Price, 1976) |  | BRN  | 1730777 |  | Henry's Law Constant | 3.70 atm?m3/molat 25 °C (approximate - calculated from water solubility and vapor pressure) |  | Exposure limits | ACGIH: TWA 300 ppm |  | LogP | 4.627 (est) |  | CAS DataBase Reference | 589-81-1(CAS DataBase Reference) |  | EPA Substance Registry System | 3-Methylheptane (589-81-1) |  
  
 |  | 3-METHYLHEPTANE Usage And Synthesis |  
 | Chemical Properties | Colorless liquid. |  | Physical properties | Colorless, flammable liquid with an odor resembling hexane. An odor threshold concentration of
1.5 ppmv was reported by Nagata and Takeuchi (1990). |  | Uses | Calibration, organic synthesis. |  | Definition | ChEBI: 3-Methylheptane is an alkane. |  | Hazard | Flammable, dangerous fire risk. |  | Environmental fate | Photolytic. Based on a photooxidation rate constant of 8.90 x 10-12 cm3/molecule?sec for the
reaction of 3-methylheptane and OH radicals, the estimated lifetime is 16 h during summer
sunlight (Altshuller, 1991). 
Chemical/Physical. Complete combustion in air produces carbon dioxide and water vapor. 3-
Methylheptane will not hydrolyze because it does not contain a hydrolyzable functional group. |  | Solubility in organics | In methanol, g/L: 154 at 5 °C, 170 at 10 °C, 190 at 15 °C, 212 at 20 °C, 242 at 25 °C, 274 at 30
°C, 314 at 35 °C, 365 at 40 °C (Kiser et al., 1961); miscible in many liquid hydrocarbons,
particularly saturated hydrocarbons. |  
  
 |  | 3-METHYLHEPTANE Preparation Products And Raw materials |  
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