1,8-Dimethylnaphthalene C12H12 structure

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C12H12 structure
Molecular Formula C12H12
Average mass 156.224 Da
Density 1.0±0.1 g/cm3
Boiling Point 270.6±10.0 °C at 760 mmHg
Flash Point 115.3±9.7 °C
Molar Refractivity 53.7±0.3 cm3
Polarizability 21.3±0.5 10-24cm3
Surface Tension 37.5±3.0 dyne/cm
Molar Volume 156.1±3.0 cm3
  • Experimental data
  • Predicted – ACD/Labs
  • Predicted – EPISuite
  • Predicted – ChemAxon
  • Predicted – Mcule
  • Experimental Physico-chemical Properties
    • Experimental Melting Point:

      65 °C Jean-Claude Bradley Open Melting Point Dataset 19515
      62-63 °C BIONET-Key Organics
      62-63 °C BIONET-Key Organics 512946, FD-0040
  • Gas Chromatography
    • Retention Index (Kovats):

      1458 (estimated with error: 55) NIST Spectra mainlib_230888, replib_118790, replib_156702
      1456.8 (Program type: Isothermal; Col… (show more) umn class: Standard non-polar; Column diameter: 0.3 mm; Column length: 50 m; Column type: Capillary; Start T: 140 C; CAS no: 569415; Active phase: OV-101; Carrier gas: N2; Data type: Kovats RI; Authors: Gerasimenko, V.A.; Kirilenko, A.V.; Nabivach, V.M., Capillary gas chromatography of aromatic compounds found in coal tar fractions, J. Chromatogr., 208, 1981, 9-16.) NIST Spectra nist ri
      1472.4 (Program type: Isothermal; Col… (show more) umn class: Standard non-polar; Column diameter: 0.3 mm; Column length: 50 m; Column type: Capillary; Start T: 160 C; CAS no: 569415; Active phase: OV-101; Carrier gas: N2; Data type: Kovats RI; Authors: Gerasimenko, V.A.; Kirilenko, A.V.; Nabivach, V.M., Capillary gas chromatography of aromatic compounds found in coal tar fractions, J. Chromatogr., 208, 1981, 9-16.) NIST Spectra nist ri
      1449 (Program type: Isothermal; Col… (show more) umn class: Standard non-polar; Column diameter: 0.23 mm; Column length: 50 m; Column type: Capillary; Start T: 130 C; CAS no: 569415; Active phase: OV-1; Data type: Kovats RI; Authors: Engewald, W.; Wennrich, L.; Ritter, E., Molekulstruktur und Retentionsverhalten. XII. Zur Retention von Alkylnaphthalinen Bei der Gasverteilungs- und Gas-Adsorptions-Chromatographie, J. Chromatogr., 174, 1979, 315-323.) NIST Spectra nist ri
      1471 (Program type: Isothermal; Col… (show more) umn class: Standard non-polar; Column type: Packed; Start T: 150 C; CAS no: 569415; Active phase: SE-30; Data type: Kovats RI; Authors: Shlyakhov, A.F.; Anvaer, B.I.; Zolotareva, O.V.; Romina, N.N.; Novikova, N.V.; Koreshkova, R.I., On the possibility of group indentification of hydrocarbons by gas chromatography from temperature coefficients of retention indices, Zh. Anal. Khim., 30, 1975, 788-792.) NIST Spectra nist ri
      1440.8 (Program type: Isothermal; Col… (show more) umn class: Semi-standard non-polar; Column length: 50 m; Column type: Capillary; Start T: 120 C; CAS no: 569415; Active phase: Squalane; Data type: Kovats RI; Authors: Gerasimenko, V.A.; Nabivach, V.M., Sorption-structure correlations in the series of alkyl derivatives of naphthalene, J. Anal. Chem. USSR (Engl. Transl.), 52(1), 1997, 21-27, In original 28-35.) NIST Spectra nist ri
    • Retention Index (Lee):

      250.7 (Program type: Ramp; Column cl… (show more) ass: Semi-standard non-polar; Column length: 60 m; Column type: Capillary; CAS no: 569415; Active phase: DB-5; Data type: Lee RI; Authors: Fuentes, M.J.; Font, R.; Gomez-Rico, M.F.; Martin-Gullon, I., Pyrolysis and combustion of waste lubricant oil from diesel cars: Decomposition and pollutants, J. Anal. Appl. Pyrolysis, 79, 2007, 215-226.) NIST Spectra nist ri
      249.39 (Program type: Ramp; Column cl… (show more) ass: Semi-standard non-polar; Column diameter: 0.30 mm; Column length: 30 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 40 C; End T: 250 C; CAS no: 569415; Active phase: SE-52; Data type: Lee RI; Authors: Wang, Y.; Peng, P.; Cui, S.; Zhang, Y., Identification of PAH in the Suzhou River bed sediments by GC/MS and PAH retention index system, J. Nanjing Norm. Univ. (Nat. Sci.), 20(2), 1997, 47-68.) NIST Spectra nist ri
      249.52 (Program type: Ramp; Column cl… (show more) ass: Semi-standard non-polar; Column diameter: 0.3 mm; Column length: 12 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 50 C; End T: 250 C; CAS no: 569415; Active phase: SE-52; Carrier gas: He; Phase thickness: 0.34 um; Data type: Lee RI; Authors: Lee, M.L.; Vassilaros, D.L.; White, C.M.; Novotny, M., Retention Indices for Programmed-Temperature Capillary-Column Gas Chromatography of Polycyclic Aromatic Hydrocarbons, Anal. Chem., 51(6), 1979, 768-773., Program type: Ramp; Column cl… (show more) ass: Semi-standard non-polar; Column diameter: 0.30 mm; Column length: 30 m; Column type: Capillary; CAS no: 569415; Active phase: SE-52; Data type: Lee RI; Authors: Wang, Y.; Peng, P.; Cui, S.; Zhang, Y., Identification of PAH in the Suzhou River bed sediments by GC/MS and PAH retention index system, J. Nanjing Norm. Univ. (Nat. Sci.), 20(2), 1997, 47-68.) NIST Spectra nist ri
      252 (Program type: Ramp; Column cl… (show more) ass: Semi-standard non-polar; Column diameter: 0.30 mm; Column length: 20 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 40 C; End T: 265 C; Start time: 2 min; CAS no: 569415; Active phase: SE-52; Carrier gas: H2; Phase thickness: 0.25 um; Data type: Lee RI; Authors: Vassilaros, D.L.; Kong, R.C.; Later, D.W.; Lee, M.L., Linear retention index system for polycyclic aromatic compounds. Critical evaluation and additional indices, J. Chromatogr., 252, 1982, 1-20.) NIST Spectra nist ri
    • Retention Index (Normal Alkane):

      1448 (Program type: Isothermal; Col… (show more) umn class: Standard non-polar; Column type: Capillary; Start T: 130 C; CAS no: 569415; Active phase: Polidimethyl siloxane; Data type: Normal alkane RI; Authors: Nabivach, V.M.; Gerasimenko, V.A., Gas chromatographic retention characteristics of bicyclic aromatic hydrocarbons, Coke and Chemistry (Rus), , 1996, 27-31, In original 27-31.) NIST Spectra nist ri
      1449 (Program type: Isothermal; Col… (show more) umn class: Standard non-polar; Column type: Capillary; Start T: 130 C; CAS no: 569415; Active phase: Polidimethyl siloxane; Data type: Normal alkane RI; Authors: Nabivach, V.M.; Gerasimenko, V.A., Gas chromatographic retention characteristics of bicyclic aromatic hydrocarbons, Coke and Chemistry (Rus), , 1996, 27-31, In original 27-31., Program type: Ramp; Column cl… (show more) ass: Standard non-polar; Column type: Capillary; CAS no: 569415; Active phase: OV-1; Data type: Normal alkane RI; Authors: Dimov, N.; Osman, A.; Mekenyan, Ov.; Papazova, D., Selection of moelcular descriptors used in quantitative structure-gas chromatographic retention relationships. I. Application to alkylbenzenes and naphthalenes, Anal. Chim. Acta., 298, 1994, 303-317.) NIST Spectra nist ri
      1457 (Program type: Isothermal; Col… (show more) umn class: Standard non-polar; Column type: Capillary; Start T: 120 C; CAS no: 569415; Active phase: OV-101; Data type: Normal alkane RI; Authors: Nabivach, V.M.; Gerasimenko, V.A., Gas chromatographic retention characteristics of bicyclic aromatic hydrocarbons, Coke and Chemistry (Rus), , 1996, 27-31, In original 27-31., Program type: Isothermal; Col… (show more) umn class: Standard non-polar; Column type: Capillary; Start T: 130 C; CAS no: 569415; Active phase: Polidimethyl siloxane; Data type: Normal alkane RI; Authors: Nabivach, V.M.; Gerasimenko, V.A., Gas chromatographic retention characteristics of bicyclic aromatic hydrocarbons, Coke and Chemistry (Rus), , 1996, 27-31, In original 27-31.) NIST Spectra nist ri
    • Retention Index (Linear):

      1459.7 (Program type: Ramp; Column cl… (show more) ass: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 40 C; End T: 310 C; CAS no: 569415; Active phase: DB-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Lai, W.-C.; Song, C., Temperature-programmed retention indices for g.c. and g.c.-m.s. analysis of coal- and petroleum-derived liquid fuels, Fuel, 74(10), 1995, 1436-1451., Program type: Ramp; Column cl… (show more) ass: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 40 C; End T: 310 C; CAS no: 569415; Active phase: DB-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Song, C.; Lai, W.-C.; Madhusudan Reddy, K.; Wei, B., Chapter 7. Temperature-programmed retention indices for GC and GC-MS of hydrocarbon fuels and simulated distillation GC of heavy oils, in Analytical advances for hydrocarbon research, Hsu,C.S., ed(s), Kluwer Academic/Plenum Publishers, New York, 2003, 147-193.) NIST Spectra nist ri
      1472.1 (Program type: Ramp; Column cl… (show more) ass: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 40 C; End T: 310 C; Start time: 5 min; CAS no: 569415; Active phase: DB-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Lai, W.-C.; Song, C., Temperature-programmed retention indices for g.c. and g.c.-m.s. analysis of coal- and petroleum-derived liquid fuels, Fuel, 74(10), 1995, 1436-1451., Program type: Ramp; Column cl… (show more) ass: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 40 C; End T: 310 C; Start time: 5 min; CAS no: 569415; Active phase: DB-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Song, C.; Lai, W.-C.; Madhusudan Reddy, K.; Wei, B., Chapter 7. Temperature-programmed retention indices for GC and GC-MS of hydrocarbon fuels and simulated distillation GC of heavy oils, in Analytical advances for hydrocarbon research, Hsu,C.S., ed(s), Kluwer Academic/Plenum Publishers, New York, 2003, 147-193.) NIST Spectra nist ri
      1472.7 (Program type: Ramp; Column cl… (show more) ass: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 40 C; End T: 310 C; CAS no: 569415; Active phase: DB-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Lai, W.-C.; Song, C., Temperature-programmed retention indices for g.c. and g.c.-m.s. analysis of coal- and petroleum-derived liquid fuels, Fuel, 74(10), 1995, 1436-1451., Program type: Ramp; Column cl… (show more) ass: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 40 C; End T: 310 C; CAS no: 569415; Active phase: DB-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Song, C.; Lai, W.-C.; Madhusudan Reddy, K.; Wei, B., Chapter 7. Temperature-programmed retention indices for GC and GC-MS of hydrocarbon fuels and simulated distillation GC of heavy oils, in Analytical advances for hydrocarbon research, Hsu,C.S., ed(s), Kluwer Academic/Plenum Publishers, New York, 2003, 147-193.) NIST Spectra nist ri
      1480 (Program type: Ramp; Column cl… (show more) ass: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Heat rate: 6 K/min; Start T: 40 C; End T: 310 C; CAS no: 569415; Active phase: DB-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Lai, W.-C.; Song, C., Temperature-programmed retention indices for g.c. and g.c.-m.s. analysis of coal- and petroleum-derived liquid fuels, Fuel, 74(10), 1995, 1436-1451., Program type: Ramp; Column cl… (show more) ass: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Heat rate: 6 K/min; Start T: 40 C; End T: 310 C; CAS no: 569415; Active phase: DB-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Song, C.; Lai, W.-C.; Madhusudan Reddy, K.; Wei, B., Chapter 7. Temperature-programmed retention indices for GC and GC-MS of hydrocarbon fuels and simulated distillation GC of heavy oils, in Analytical advances for hydrocarbon research, Hsu,C.S., ed(s), Kluwer Academic/Plenum Publishers, New York, 2003, 147-193.) NIST Spectra nist ri
      1450 (Program type: Ramp; Column cl… (show more) ass: Semi-standard non-polar; Column diameter: 0.50 mm; Column length: 33.3 m; Column type: Capillary; Heat rate: 6 K/min; Start T: 50 C; End T: 320 C; Start time: 5 min; CAS no: 569415; Active phase: SE-52; Carrier gas: He; Data type: Linear RI; Authors: Beernaert, H., Gas Chromatographic Analysis of Polyclylic Aromatic Hydrocarbons, J. Chromatogr., 173, 1979, 109-118.) NIST Spectra nist ri
      1989 (Program type: Ramp; Column cl… (show more) ass: Standard polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Heat rate: 3 K/min; Start T: 60 C; End T: 240 C; End time: 10 min; Start time: 5 min; CAS no: 569415; Active phase: Supelcowax-10; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Riu-Aumatell, M.; Lopez-Tamames, E.; Buxaderas, S., Assessment of the Volatile Composition of Juices of Apricot, Peach, and Pear According to Two Pectolytic Treatments, J. Agric. Food Chem., 53, 2005, 7837-7843.) NIST Spectra nist ri

Predicted data is generated using the ACD/Labs Percepta Platform – PhysChem Module

Density: 1.0±0.1 g/cm3
Boiling Point: 270.6±10.0 °C at 760 mmHg
Vapour Pressure: 0.0±0.3 mmHg at 25°C
Enthalpy of Vaporization: 48.8±0.8 kJ/mol
Flash Point: 115.3±9.7 °C
Index of Refraction: 1.605
Molar Refractivity: 53.7±0.3 cm3
#H bond acceptors: 0
#H bond donors: 0
#Freely Rotating Bonds: 0
#Rule of 5 Violations: 0
ACD/LogP: 4.37
ACD/LogD (pH 5.5): 4.36
ACD/BCF (pH 5.5): 1203.60
ACD/KOC (pH 5.5): 5579.66
ACD/LogD (pH 7.4): 4.36
ACD/BCF (pH 7.4): 1203.60
ACD/KOC (pH 7.4): 5579.66
Polar Surface Area: 0 Å2
Polarizability: 21.3±0.5 10-24cm3
Surface Tension: 37.5±3.0 dyne/cm
Molar Volume: 156.1±3.0 cm3

Predicted data is generated using the US Environmental Protection Agency’s EPISuite™

 
 Log Octanol-Water Partition Coef (SRC):
 Log Kow (KOWWIN v1.67 estimate) = 4.26
 Log Kow (Exper. database match) = 4.26
 Exper. Ref: Hansch,C et al. (1995)
 Log Kow (Exper. database match) = 4.38
 Exper. Ref: Hansch,C et al. (1995)

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
 Boiling Pt (deg C): 266.66 (Adapted Stein & Brown method)
 Melting Pt (deg C): 39.02 (Mean or Weighted MP)
 VP(mm Hg,25 deg C): 0.0035 (Modified Grain method)
 MP (exp database): 82 deg C
 BP (exp database): 265 deg C
 VP (exp database): 5.00E-03 mm Hg at 25 deg C
 Subcooled liquid VP: 0.0183 mm Hg (25 deg C, exp database VP )

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
 Water Solubility at 25 deg C (mg/L): 12.94
 log Kow used: 4.38 (expkow database)
 no-melting pt equation used
 Water Sol (Exper. database match) = 2.74 mg/L (25 deg C)
 Exper. Ref: YALKOWSKY,SH & DANNENFELSER,RM (1992)

 Water Sol Estimate from Fragments:
 Wat Sol (v1.01 est) = 4.2212 mg/L
 Wat Sol (Exper. database match) = 2.74
 Exper. Ref: YALKOWSKY,SH & DANNENFELSER,RM (1992)

 ECOSAR Class Program (ECOSAR v0.99h):
 Class(es) found:
 Neutral Organics

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
 Bond Method : 6.41E-004 atm-m3/mole
 Group Method: 4.25E-004 atm-m3/mole
 Exper Database: 3.50E-04 atm-m3/mole
 Henrys LC [VP/WSol estimate using EPI values]: 5.560E-005 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
 Log Kow used: 4.38 (exp database)
 Log Kaw used: -1.844 (exp database)
 Log Koa (KOAWIN v1.10 estimate): 6.224
 Log Koa (experimental database): None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
 Biowin1 (Linear Model) : 0.7825
 Biowin2 (Non-Linear Model) : 0.8748
 Expert Survey Biodegradation Results:
 Biowin3 (Ultimate Survey Model): 2.7042 (weeks-months)
 Biowin4 (Primary Survey Model) : 3.4853 (days-weeks )
 MITI Biodegradation Probability:
 Biowin5 (MITI Linear Model) : 0.3796
 Biowin6 (MITI Non-Linear Model): 0.3432
 Anaerobic Biodegradation Probability:
 Biowin7 (Anaerobic Linear Model): -0.4800
 Ready Biodegradability Prediction: NO

 Hydrocarbon Biodegradation (BioHCwin v1.01):
 LOG BioHC Half-Life (days) : 1.1526
 BioHC Half-Life (days) : 14.2117

 Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
 Vapor pressure (liquid/subcooled): 2.44 Pa (0.0183 mm Hg)
 Log Koa (Koawin est ): 6.224
 Kp (particle/gas partition coef. (m3/ug)):
 Mackay model : 1.23E-006 
 Octanol/air (Koa) model: 4.11E-007 
 Fraction sorbed to airborne particulates (phi):
 Junge-Pankow model : 4.44E-005 
 Mackay model : 9.84E-005 
 Octanol/air (Koa) model: 3.29E-005 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
 Hydroxyl Radicals Reaction:
 OVERALL OH Rate Constant = 69.3968 E-12 cm3/molecule-sec
 Half-Life = 0.154 Days (12-hr day; 1.5E6 OH/cm3)
 Half-Life = 1.850 Hrs
 Ozone Reaction:
 No Ozone Reaction Estimation
 Fraction sorbed to airborne particulates (phi): 7.14E-005 (Junge,Mackay)
 Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
 Koc : 5022
 Log Koc: 3.701 

 Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v1.67]:
 Rate constants can NOT be estimated for this structure!

 Bioaccumulation Estimates from Log Kow (BCFWIN v2.17):
 Log BCF from regression-based method = 2.673 (BCF = 470.5)
 log Kow used: 4.38 (expkow database)

 Volatilization from Water:
 Henry LC: 0.00035 atm-m3/mole (Henry experimental database)
 Half-Life from Model River: 3.366 hours
 Half-Life from Model Lake : 141.5 hours (5.897 days)

 Removal In Wastewater Treatment:
 Total removal: 54.44 percent
 Total biodegradation: 0.44 percent
 Total sludge adsorption: 47.12 percent
 Total to Air: 6.88 percent
 (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
 Mass Amount Half-Life Emissions
 (percent) (hr) (kg/hr)
 Air 0.243 3.7 1000 
 Water 10.1 900 1000 
 Soil 83.9 1.8e+003 1000 
 Sediment 5.75 8.1e+003 0 
 Persistence Time: 1.01e+003 hr




 

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