ChemSpider 2D Image | 2,5-Dimethoxy-p-cymene | C12H18O2

2,5-Dimethoxy-p-cymene

  • Molecular FormulaC12H18O2
  • Average mass194.270 Da
  • Monoisotopic mass194.130676 Da
  • ChemSpider ID4932489

More details:






Validated by Experts, Validated by Users, Non-Validated, Removed by Users

1-Isopropyl-2,5-dimethoxy-4-methylbenzene [ACD/IUPAC Name]
1-Isopropyl-2,5-diméthoxy-4-méthylbenzène [French] [ACD/IUPAC Name]
1-Isopropyl-2,5-dimethoxy-4-methylbenzol [German] [ACD/IUPAC Name]
2,5-Dimethoxy-p-cymene
Benzene, 1,4-dimethoxy-2-methyl-5-(1-methylethyl)- [ACD/Index Name]
1,4-dimethoxy-2-methyl-5-(propan-2-yl)benzene
14753-08-3 [RN]
2,5-Dimethoxycymene
p-2,5-Dimethoxycymene
p-cymene, 2,5-dimethoxy-
More...
  • Gas Chromatography
    • Retention Index (Kovats):

      1423 (Program type: Ramp; Column cl... (show more) ass: Semi-standard non-polar; Column diameter: 0.26 mm; Column length: 30 m; Column type: Capillary; Heat rate: 3 K/min; Start T: 60 C; End T: 246 C; CAS no: 14753083; Active phase: SE-54; Phase thickness: 0.25 um; Data type: Kovats RI; Authors: Adams, R.P., Systematics of the one seeded Juniperus of the eastern hemisphere based on leaf essential oils and random amplified polymorphic DNAs (RAPDs), Biochem. Syst. Ecol., 28, 2000, 529-543.) NIST Spectra nist ri
    • Retention Index (Normal Alkane):

      1407 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column diameter: 0.25 mm; Column length: 25 m; Column type: Capillary; Heat rate: 3 K/min; Start T: 50 C; End T: 250 C; Start time: 3 min; CAS no: 14753083; Active phase: DB-1; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Cegiela-Carlioz, P.; Bessiere, J.-M.; David, B.; Mariotte, A.-M.; Gibbons, S.; Dijoux-Franca, M.-G., Modulation of multi-drug resistance (MDR) in Staphylococcus aureus by Osha (Ligusticum porteri L., Apiaceae) essential oil compounds, Flavour Fragr. J., 20, 2005, 671-675.) NIST Spectra nist ri
      1372 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column diameter: 0.25 mm; Column length: 25 m; Column type: Capillary; Heat rate: 6 K/min; Start T: 60 C; End T: 300 C; CAS no: 14753083; Active phase: CP Sil 5 CB; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Bos, R.; Woerdenbag, H.J.; Hendriks, H.; Scheffer, J.J.C., Composition of the essential oils from underground parts of Valeriana officinalis L. s.l. and several closely related taxa, Flavour Fragr. J., 12, 1997, 359-370., Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column diameter: 0.32 mm; Column length: 25 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 50 C; End T: 290 C; CAS no: 14753083; Active phase: CP Sil 5 CB; Carrier gas: N2; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Bos, R.; Woerdenbag, H.J.; Hendriks, H.; Smit, H.F.; Wikstrom, H.V.; Scheffer, J.J.C., Composition of the essential oil from roots and rhizomes of Valeriana wallichii DC, Flavour Fragr. J., 12, 1997, 123-131.) NIST Spectra nist ri
      1415 (Program type: Complex; Column... (show more) class: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Description: 50 0C ^ m6 0C/min -> 140 0C ^ 5 0C/min -> 160 0C (1 min) ^ 10 0C/min -> 200 0C; CAS no: 14753083; Active phase: DB-5; Carrier gas: Helium; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Courtois, E.A.; Paine, C.E.; Blandinieres, P.-A.; Stien, D.; Bessiere, J.-M.; Houel, E.; Baraloto, C.; Chave, J., Diversity of the volatile organic compounds emitted by 55 species of tropical trees: a survey in French Guiana, J. Chem. Ecol., 35, 2009, 1349-1362.) NIST Spectra nist ri
      1430 (Program type: Ramp; Column cl... (show more) ass: Semi-standard non-polar; Column diameter: 0.35 mm; Column length: 60 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 60 C; End T: 230 C; End time: 40 min; CAS no: 14753083; Active phase: SPB-5; Carrier gas: Nitrogen; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Gauvin-Bialecki, A.; Marodon, C., Essential oil of Ayapana triplinervis from Reunion island: a good natural source of thymohydroquinone dimethyl ether, Biochem. Systematics Ecol., 36, 2009, 853-858.) NIST Spectra nist ri
      1421.5 (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: 260 C; CAS no: 14753083; Active phase: HP-5MS; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Zizovic, I.; Stamenic, M.; Ivanovic, J.; Orlovic, A.; Ristic, M.; Djordjevic, S.; Petrovic, S.D.; Skala, D., Supercritical carbon dioxide extraction of sesquiterpenes from valerian root, J. Supercrit. Fluids, 43, 2007, 249-258.) NIST Spectra nist ri
      1424 (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: 2.5 K/min; Start T: 50 C; End T: 265 C; End time: 20 min; Start time: 1 min; CAS no: 14753083; Active phase: DB-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Bazargani, Y.T.; Almasirad, A.; Amin, G.; Shafiee, A., Chemical composition of the essential oils of Astrodaucus persicus (Boiss.) Drude root, stem/leaves and flowers/fruits, Flavour Fragr. J., 21, 2006, 294-296.) NIST Spectra nist ri
      1421 (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: 3 K/min; Start T: 50 C; End T: 250 C; End time: 10 min; CAS no: 14753083; Active phase: DB-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Havlik, J.; Kokoska, L.; Vasickova, S.; Valterova, I., Chemical composition of essential oil from the seeds of Nigella arvensis L. and assessment of its actimicrobial activity, Flavour Fragr. J., 21, 2006, 713-717.) NIST Spectra nist ri
      1423 (Program type: Complex; Column... (show more) class: Semi-standard non-polar; Column diameter: 0.32 mm; Column length: 50 m; Column type: Capillary; Description: 50C(5min) =>2C/min =>90C=>15C/min =>240C(4min); CAS no: 14753083; Active phase: CP Sil 8 CB; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Butkiene, R.; Nivinskiene, O.; Mockute, D., .alpha.-Pinene chemotype of leaf (needle) essential oils of Juniperus communis L. growing wild in Vilnius district, Chemija, 16(1), 2005, 53-60.) NIST Spectra nist ri
      1420 (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: 210 C; End time: 33 min; Start time: 2 min; CAS no: 14753083; Active phase: DB-5; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Lopez Arze, J.B.; Collin, G.; Garneau, F.-X.; Jean, F.-I.; Gagnon, H., Essential oils from Bolivia. II. Asteraceae: Ophryosporus heptanthus (Wedd.) H. Rob. et King, J. Essent. Oil Res., 16, 2004, 374-376.) NIST Spectra nist ri
      1425 (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: 3 K/min; Start T: 60 C; End T: 240 C; CAS no: 14753083; Active phase: DB-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Flamini, G.; Ertugrul, K.; Cioni, P.L.; Morelli, I.; Dural, H.; Bagci, Y., Volatile constituents of two endemic Centaurea species from Turkey: C. pseudoscabiosa subsp. pseudoscabiosa and C. hadimensis, Biochem. Syst. Ecol., 30, 2002, 953-959.) NIST Spectra nist ri
      1885 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.35 mm; Column length: 60 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 60 C; End T: 230 C; End time: 40 min; CAS no: 14753083; Active phase: Supelcowax; Carrier gas: Nitrogen; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Gauvin-Bialecki, A.; Marodon, C., Essential oil of Ayapana triplinervis from Reunion island: a good natural source of thymohydroquinone dimethyl ether, Biochem. Systematics Ecol., 36, 2009, 853-858.) NIST Spectra nist ri
      1878 (Program type: Complex; Column... (show more) class: Standard polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Description: 60C(10min) => 4C/min =>220C(10min) =>1C/min =>240C; CAS no: 14753083; Active phase: Innowax FSC; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Baser, K.H.C.; Demirei, B.; Ozek, T.; Akalin, E.; Ozhatay, N., Micro-distilled volatile compounds from Ferulago species growing in Western Turkey, Pharm. Biol., 40(6), 2002, 466-471., Program type: Complex; Column... (show more) class: Standard polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Description: 60C(10min) =>4C/min =>220C (10min)=>1C/min =>240C; CAS no: 14753083; Active phase: HP-Innowax FSC; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Erdurak, C.S.; Coskun, M.; Demirci, B.; Baser, K.H.C., Composition of the essential oil of fruits and roots of Ferulago isaurica Pesmen and F. syriaca Boiss. (Umbelliferae) from Turkey, Flavour Fragr. J., 21, 2006, 118-121., Program type: Complex; Column... (show more) class: Standard polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Description: 60C(10min) =>4C/min =>220C(10min) => 1C/min =>240C; CAS no: 14753083; Active phase: HP Innowax FSP; Carrier gas: N2; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Tabanca N.; Demirci B.; Crockett S.L.; Baser K.H.C.; Wedge D.E., Chemical composition and antifungal activity of Arnica longifolia, Aster hesperius, and Chrysothamnus nauseosus essential oils, J. Agric. Food Chem., 55, 2007, 8430-8435., Program type: Complex; Column... (show more) class: Standard polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Description: 60C(10min) =>4C/min =>220C(10min) =>1C/min=>240C; CAS no: 14753083; Active phase: Innowax FSC; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Baser, K.H.C.; Ozek, T.; Kirimer, N.; Deliorman, D.; Ergun, F., Composition of the essential oils of Galium aparine L. and Galium odoratum (L.) Scop. from Turkey, J. Essent. Oil Res., 16, 2004, 305-307.) NIST Spectra nist ri
      1918 (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: 50 C; End T: 250 C; End time: 10 min; CAS no: 14753083; Active phase: DB-Wax; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Havlik, J.; Kokoska, L.; Vasickova, S.; Valterova, I., Chemical composition of essential oil from the seeds of Nigella arvensis L. and assessment of its actimicrobial activity, Flavour Fragr. J., 21, 2006, 713-717.) NIST Spectra nist ri
      1866 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Heat rate: 3 K/min; Start T: 80 C; End T: 240 C; CAS no: 14753083; Active phase: TC-Wax; Carrier gas: He; Data type: Normal alkane RI; Authors: Miyazawa, M.; Teranishi, A.; Ishikawa, Y., Components of the essential oil from Petasites japonicus, Flavour Fragr. J., 18, 2003, 231-233.) NIST Spectra nist ri
    • Retention Index (Linear):

      1399 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column diameter: 0.22 mm; Column length: 60 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 60 C; End T: 230 C; End time: 35 min; CAS no: 14753083; Active phase: RTX-1; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Paolini, J.; Muselli, A.; Bernardini, A.-F.; Bighelli, A.; Casanova, J.; Costa, J., Thymol derivatives from essential oil of Doronicum corsicum L., Flavour Fragr. J., 22, 2007, 479-487.) NIST Spectra nist ri
      1422 (Program type: Ramp; Column cl... (show more) ass: Standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 50 C; End T: 220 C; CAS no: 14753083; Active phase: DB-1; Carrier gas: N2; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Kuiate, J.R.; Bessiere, J.M.; Vilarem, G.; Amvam Zollo, P.H., Chemical composition and antidermatophytic properties of the essential oils from leaves, flowers and fruits of Cupressus lusitanica Mill. from Cameroon, Flavour Fragr. J., 21, 2006, 693-697.) NIST Spectra nist ri
      1415 (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: 3 K/min; Start T: 60 C; End T: 240 C; CAS no: 14753083; Active phase: DB-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Flamini, G.; Cioni, P.L.; Morelli, I.; Bader, A., Essential oils of the aerial parts of three Salvia species from Jordan: Salvia lanigera, S. spinosa and S. syriaca, Food Chem., 100, 2007, 732-735.) NIST Spectra nist ri
      1417 (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: 5 K/min; Start T: 60 C; End T: 220 C; Start time: 10 min; CAS no: 14753083; Active phase: HP-5; Carrier gas: N2; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Flamini, G.; Tebano, M.; Cioni, P.L.; Bagci, Y.; Dural, H.; Ertugrul, K.; Uysal, T.; Savran, A., A multivariate statistical approach to Centaurea classification using essential oil composition data of some species from Turkey, Pl. Syst. Evol., 261, 2006, 217-228.) NIST Spectra nist ri
      1424 (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: 5 K/min; Start T: 60 C; End T: 220 C; Start time: 10 min; CAS no: 14753083; Active phase: HP-5; Carrier gas: N2; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Ertugrul, K.; Dural, H.; Tugay, O.; Flamini, G.; Cioni, P.L.; Morelli, I., Essential oils from flowers of Centaurea kotschyi var. kotschyi and C. kotschyi var. decumbens from Turkey, Flavour Fragr. J., 18, 2003, 95-97.) NIST Spectra nist ri
      1852 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.22 mm; Column length: 60 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 60 C; End T: 230 C; End time: 35 min; CAS no: 14753083; Active phase: RTX-Wax; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Paolini, J.; Muselli, A.; Bernardini, A.-F.; Bighelli, A.; Casanova, J.; Costa, J., Thymol derivatives from essential oil of Doronicum corsicum L., Flavour Fragr. J., 22, 2007, 479-487.) NIST Spectra nist ri
      1873 (Program type: Ramp; Column cl... (show more) ass: Standard polar; Column diameter: 0.25 mm; Column length: 50 m; Column type: Capillary; Heat rate: 1 K/min; Start T: 32 C; End T: 220 C; Start time: 1 min; CAS no: 14753083; Active phase: CP-Wax 52CB; Carrier gas: He; Phase thickness: 0.2 um; Data type: Linear RI; Authors: Kjeldsen, F.; Christensen, L.P.; Edelenbos, M., Changes in volatile compounds of carrots (Daucus carota L.) during refrigerated and frozen storage, J. Agric. Food Chem., 51, 2003, 5400-5407.) 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: 278.8±40.0 °C at 760 mmHg
Vapour Pressure: 0.0±0.6 mmHg at 25°C
Enthalpy of Vaporization: 49.7±3.0 kJ/mol
Flash Point: 102.1±26.9 °C
Index of Refraction: 1.487
Molar Refractivity: 58.6±0.3 cm3
#H bond acceptors: 2
#H bond donors: 0
#Freely Rotating Bonds: 3
#Rule of 5 Violations: 0
ACD/LogP: 3.90
ACD/LogD (pH 5.5): 3.63
ACD/BCF (pH 5.5): 336.66
ACD/KOC (pH 5.5): 2241.67
ACD/LogD (pH 7.4): 3.63
ACD/BCF (pH 7.4): 336.66
ACD/KOC (pH 7.4): 2241.67
Polar Surface Area: 18 Å2
Polarizability: 23.2±0.5 10-24cm3
Surface Tension: 29.1±3.0 dyne/cm
Molar Volume: 203.8±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) =  4.16

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  255.91  (Adapted Stein & Brown method)
    Melting Pt (deg C):  40.52  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  0.0142  (Modified Grain method)
    Subcooled liquid VP: 0.0196 mm Hg (25 deg C, Mod-Grain method)

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  13.15
       log Kow used: 4.16 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  9.2717 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   4.05E-005  atm-m3/mole
   Group Method:   8.68E-003  atm-m3/mole
 Henrys LC [VP/WSol estimate using EPI values]:  2.760E-004 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  4.16  (KowWin est)
  Log Kaw used:  -2.781  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  6.941
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   1.0282
   Biowin2 (Non-Linear Model)     :   0.9973
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.5039  (weeks-months)
   Biowin4 (Primary Survey Model) :   3.5846  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.5744
   Biowin6 (MITI Non-Linear Model):   0.6107
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.2298
 Ready Biodegradability Prediction:   NO

Hydrocarbon Biodegradation (BioHCwin v1.01):
    Structure incompatible with current estimation method!

 Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
  Vapor pressure (liquid/subcooled):  2.61 Pa (0.0196 mm Hg)
  Log Koa (Koawin est  ): 6.941
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  1.15E-006 
       Octanol/air (Koa) model:  2.14E-006 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  4.15E-005 
       Mackay model           :  9.18E-005 
       Octanol/air (Koa) model:  0.000171 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  62.5057 E-12 cm3/molecule-sec
      Half-Life =     0.171 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     2.053 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 6.66E-005 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  698.8
      Log Koc:  2.844 

 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 = 2.502 (BCF = 317.5)
       log Kow used: 4.16 (estimated)

 Volatilization from Water:
    Henry LC:  0.00868 atm-m3/mole  (estimated by Group SAR Method)
    Half-Life from Model River:      1.516  hours
    Half-Life from Model Lake :      133.4  hours   (5.559 days)

 Removal In Wastewater Treatment:
    Total removal:              82.45  percent
    Total biodegradation:        0.16  percent
    Total sludge adsorption:    26.28  percent
    Total to Air:               56.01  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       0.577           4.11         1000       
   Water     12.5            900          1000       
   Soil      82.6            1.8e+003     1000       
   Sediment  4.28            8.1e+003     0          
     Persistence Time: 635 hr




                    

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