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Inherent Properties, Identifiers and References
ChemSpider ID: 7607
Empirical Formula: C5H10O
Molecular Weight: 86.1323
Nominal Mass: 86 Da
Average Mass: 86.1323 Da
Monoisotopic Mass: 86.073165 Da
Quick Links: Permalink Similar Isomers
Systematic Name: pentan-2-one
SMILES: O=C(C)CCC
InChI: InChI=1/C5H10O/c1-3-4-5(2)6/h3-4H2,1-2H3
InChIKey: XNLICIUVMPYHGG-UHFFFAOYAJ
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User Data

  • experimental physchem properties
    • Melting Point: -78
    • Melting Point: -78 C
    • Boiling Point: 100-101
    • Boiling Point: 215F
    • Boiling Point: 102
    • Boiling Point: 100 - 110 C
    • Flash Point: 7(44F)
    • Flash Point: 45F
    • Flash Point: 7 C (closed cup)
    • Freezing Point: -108F
    • Specific Gravity: 0.813
    • Specific Gravity: 0.81
    • Specific Gravity: 0.801-0.806
    • Refraction Index: 1.3905
    • Refraction Index: 1.387-1.392
    • logP: 0.91
    • Solubility: 6%
    • Ionization Potential: 9.39 eV
    • Vapor Pressure: 27 mmHg
  • miscellaneous
    • Appearance: Colorless to water-white liquid with a characteristic acetone-like odor.
    • Appearance: colourless liquid
    • Appearance: colourless to pale yellow, mobile liquid with an ethereal, fruity odour
    • Stability: Stable. Highly flammable - note low flashpoint. Incompatible withstrong bases, oxidizing agents, reducing agents.
    • Toxicity: ORL-RAT LD50 1600 mg kg-1, IPR-RAT LD50 800 mg kg-1, SKN-RBT LD50 6500 mg kg-1, ORL-MAM LD50 3700 mg kg-1
    • Safety: FLAMMABLE / HARMFUL / IRRITANT
    • Safety: Safety glasses, adequate ventilation.
    • First Aid: Eye: Irrigate immediately Skin: Water flush Breathing: Respiratory support Swallow: Medical attention immediately
    • Exposure Routes: inhalation, ingestion, skin and/or eye contact
    • Symptoms: Irritation eyes, skin, mucous membrane; headache; dermatitis; narcosis, coma
    • Target Organs: Eyes, skin, respiratory system, central nervous system
    • Incompatibilities and Reactivities: Oxidizers, bromine trifluoride
    • Personal protection and Sanitation: Skin: Prevent skin contact Eyes: Prevent eye contact Wash skin: When contaminated Remove: When wet (flammable) Change: No recommendation
    • Exposure Limits: NIOSH REL : TWA 150 ppm (530 mg/m 3 ) OSHA PEL ?: TWA 200 ppm (700 mg/m 3 )
Names and Synonyms

Validated by Experts, Validated by Users, Non-Validated, Removed by Users, Redirected by Users, Redirect Approved by Experts

2-pentano​ne

Pentanone [Wiki]

0-01-00-0​0477 (Bei​lstein Ha​ndbook Re​ference) [Beilstein]

107-87-9 [RN]

107-88-0 [RN]

18826-95-4 [RN]

203-528-1 [EINECS/ELINCS]

203-529-7 [EINECS/ELINCS]

228-532-0 [EINECS/ELINCS]

24621-61-2 [RN]

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Database ID(s)

Validated by Experts, Validated by Users, Non-Validated, Removed by Users, Redirected by Users, Redirect Approved by Experts

(Details...) Predicted Properties
LogP: ACD/LogP: 0.91
XLogP: 1.00
ALOGPS: 0.87
# of Rule of 5 Violations: 0
ACD/LogD (pH 5.5): 0.91 ACD/LogD (pH 7.4): 0.91
ACD/BCF (pH 5.5): 2.87 ACD/BCF (pH 7.4): 2.87
ACD/KOC (pH 5.5): 74.05 ACD/KOC (pH 7.4): 74.05
#H bond acceptors: 1 #H bond donors: 0
#Freely Rotating Bonds: 2 Polar Surface Area: 17.07 Å2
Index of Refraction: 1.383 Molar Refractivity: 25.24 cm3
Molar Volume: 108.1 cm3 Polarizability: 10 10-24cm3
Surface Tension: 22.6 dyne/cm Density: 0.796 g/cm3
Flash Point: 7.2 °C Enthalpy of Vaporization: 32.76 kJ/mol
Boiling Point: 102.7 °C at 760 mmHg Vapour Pressure: 38.6 mmHg at 25°C
            
 Log Octanol-Water Partition Coef (SRC):
    Log Kow (KOWWIN v1.67 estimate) =  0.75
    Log Kow (Exper. database match) =  0.91
       Exper. Ref:  Hansch,C et al. (1995)

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  95.03  (Adapted Stein & Brown method)
    Melting Pt (deg C):  -67.65  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  39.4  (Mean VP of Antoine & Grain methods)
    MP  (exp database):  -76.9 deg C
    BP  (exp database):  102.2 deg C
    VP  (exp database):  3.54E+01 mm Hg at 25 deg C

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  2.123e+004
       log Kow used: 0.91 (expkow database)
       no-melting pt equation used
     Water Sol (Exper. database match) =  4.3e+004 mg/L (25 deg C)
        Exper. Ref:  YALKOWSKY,SH & DANNENFELSER,RM (1992)

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  33457 mg/L
    Wat Sol (Exper. database match) =  43000.00
       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 :   8.73E-005  atm-m3/mole
   Group Method:   7.92E-005  atm-m3/mole
   Exper Database: 8.36E-05  atm-m3/mole
 Henrys LC [VP/WSol estimate using EPI values]:  2.103E-004 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  0.91  (exp database)
  Log Kaw used:  -2.466  (exp database)
      Log Koa (KOAWIN v1.10 estimate):  3.376
      Log Koa (experimental database):  3.190

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.7134
   Biowin2 (Non-Linear Model)     :   0.7913
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.9863  (weeks       )
   Biowin4 (Primary Survey Model) :   3.7012  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.6733
   Biowin6 (MITI Non-Linear Model):   0.8545
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.3370
 Ready Biodegradability Prediction:   YES

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

 Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
  Vapor pressure (liquid/subcooled):  4.72E+003 Pa (35.4 mm Hg)
  Log Koa (Exp database): 3.190
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  6.36E-010 
       Octanol/air (Koa) model:  3.8E-010 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  2.3E-008 
       Mackay model           :  5.08E-008 
       Octanol/air (Koa) model:  3.04E-008 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =   4.7735 E-12 cm3/molecule-sec
      Half-Life =     2.241 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =    26.888 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 3.69E-008 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  7.059
      Log Koc:  0.849 

 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 = 0.500 (BCF = 3.162)
       log Kow used: 0.91 (expkow database)

 Volatilization from Water:
    Henry LC:  8.36E-005 atm-m3/mole  (Henry experimental database)
    Half-Life from Model River:      7.447  hours
    Half-Life from Model Lake :      159.1  hours   (6.627 days)

 Removal In Wastewater Treatment:
    Total removal:               5.98  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.72  percent
    Total to Air:                4.17  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       8.7             55.1         1000       
   Water     44.3            360          1000       
   Soil      46.9            720          1000       
   Sediment  0.0873          3.24e+003    0          
     Persistence Time: 269 hr




        
(Details...) Spectra
Type: CNMR
Type: HNMR