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CAS Number: 5870-62-2

SMILES : C1CC(=O)C=C1O

CHEM : 3-hydroxycyclopent-2-en-1-one

MOL FOR: C5 H6 O2

MOL WT : 98.10

------------------------------ EPI SUMMARY (v4.00) --------------------------

Physical Property Inputs:

Log Kow (octanol-water): ------

Boiling Point (deg C) : ------

Melting Point (deg C) : ------

Vapor Pressure (mm Hg) : ------

Water Solubility (mg/L): ------

Henry LC (atm-m3/mole) : ------

Log Octanol-Water Partition Coef (SRC):

Log Kow (KOWWIN v1.67 estimate) = -0.18

Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPVP v1.43):

Boiling Pt (deg C): 224.71 (Adapted Stein & Brown method)

Melting Pt (deg C): 23.98 (Mean or Weighted MP)

VP(mm Hg,25 deg C): 0.0162 (Mean VP of Antoine & Grain methods)

VP (Pa, 25 deg C) : 2.16 (Mean VP of Antoine & Grain methods)

Water Solubility Estimate from Log Kow (WSKOW v1.41):

Water Solubility at 25 deg C (mg/L): 1.678e+005

log Kow used: -0.18 (estimated)

no-melting pt equation used

Water Sol Estimate from Fragments:

Wat Sol (v1.01 est) = 9127.8 mg/L

ECOSAR Class Program (ECOSAR v1.00):

Class(es) found:

Vinyl/Allyl Ketones

Vinyl/Allyl Alcohols

Henrys Law Constant (25 deg C) [HENRYWIN v3.20]:

Bond Method : 5.24E-009 atm-m3/mole (5.31E-004 Pa-m3/mole)

Group Method: Incomplete

For Henry LC Comparison Purposes:

User-Entered Henry LC: not entered

Henrys LC [via VP/WSol estimate using User-Entered or Estimated values]:

HLC: 1.246E-008 atm-m3/mole (1.263E-003 Pa-m3/mole)

VP: 0.0162 mm Hg (source: MPBPVP)

WS: 1.68E+005 mg/L (source: WSKOWWIN)

Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:

Log Kow used: -0.18 (KowWin est)

Log Kaw used: -6.669 (HenryWin est)

Log Koa (KOAWIN v1.10 estimate): 6.489

Log Koa (experimental database): None

Probability of Rapid Biodegradation (BIOWIN v4.10):

Biowin1 (Linear Model) : 0.8664

Biowin2 (Non-Linear Model) : 0.9072

Expert Survey Biodegradation Results:

Biowin3 (Ultimate Survey Model): 3.1199 (weeks )

Biowin4 (Primary Survey Model) : 3.8134 (days )

MITI Biodegradation Probability:

Biowin5 (MITI Linear Model) : 0.7448

Biowin6 (MITI Non-Linear Model): 0.8842

Anaerobic Biodegradation Probability:

Biowin7 (Anaerobic Linear Model): 0.2634

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): 2 Pa (0.015 mm Hg)

Log Koa (Koawin est ): 6.489

Kp (particle/gas partition coef. (m3/ug)):

Mackay model : 1.5E-006

Octanol/air (Koa) model: 7.57E-007

Fraction sorbed to airborne particulates (phi):

Junge-Pankow model : 5.42E-005

Mackay model : 0.00012

Octanol/air (Koa) model: 6.05E-005

Atmospheric Oxidation (25 deg C) [AopWin v1.92]:

Hydroxyl Radicals Reaction:

OVERALL OH Rate Constant = 81.2327 E-12 cm3/molecule-sec

Half-Life = 0.132 Days (12-hr day; 1.5E6 OH/cm3)

Half-Life = 1.580 Hrs

Ozone Reaction:

OVERALL Ozone Rate Constant = 1.137500 E-17 cm3/molecule-sec

Half-Life = 1.007 Days (at 7E11 mol/cm3)

Half-Life = 24.179 Hrs

Fraction sorbed to airborne particulates (phi):

8.71E-005 (Junge-Pankow, Mackay avg)

6.05E-005 (Koa method)

Note: the sorbed fraction may be resistant to atmospheric oxidation

Soil Adsorption Coefficient (KOCWIN v2.00):

Koc : 1 L/kg (MCI method)

Log Koc: 0.000 (MCI method)

Koc : 4.071 L/kg (Kow method)

Log Koc: 0.610 (Kow method)

Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v2.00]:

Rate constants can NOT be estimated for this structure!

Bioaccumulation Estimates (BCFBAF v3.00):

Log BCF from regression-based method = 0.500 (BCF = 3.162 L/kg wet-wt)

Log Biotransformation Half-life (HL) = -1.7933 days (HL = 0.01609 days)

Log BCF Arnot-Gobas method (upper trophic) = -0.036 (BCF = 0.9208)

Log BAF Arnot-Gobas method (upper trophic) = -0.036 (BAF = 0.9208)

log Kow used: -0.18 (estimated)

Volatilization from Water:

Henry LC: 5.24E-009 atm-m3/mole (estimated by Bond SAR Method)

Half-Life from Model River: 1.107E+005 hours (4611 days)

Half-Life from Model Lake : 1.207E+006 hours (5.031E+004 days)

Removal In Wastewater Treatment:

Total removal: 1.85 percent

Total biodegradation: 0.09 percent

Total sludge adsorption: 1.76 percent

Total to Air: 0.00 percent

(using 10000 hr Bio P,A,S)

Level III Fugacity Model:

Mass Amount Half-Life Emissions

(percent) (hr) (kg/hr)

Air 0.0918 2.8 1000

Water 39.9 360 1000

Soil 60 720 1000

Sediment 0.0746 3.24e+003 0

Persistence Time: 505 hr

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