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CAS Number: 541-02-6
SMILES : C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O1
CHEM : Cyclopentasiloxane, decamethyl-
MOL FOR: C10 H30 O5 Si5
MOL WT : 370.78
------------------------------ 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) = 5.71
Log Kow (Exper. database match) = 5.20
Exper. Ref: BRUGGEMAN,WA ET AL. (1984)
Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPVP v1.43):
Boiling Pt (deg C): 196.78 (Adapted Stein & Brown method)
Melting Pt (deg C): -5.19 (Mean or Weighted MP)
VP(mm Hg,25 deg C): 0.218 (Mean VP of Antoine & Grain methods)
VP (Pa, 25 deg C) : 29.1 (Mean VP of Antoine & Grain methods)
MP (exp database): -38 deg C
BP (exp database): 210 deg C
VP (exp database): 2.00E-01 mm Hg (2.67E+001 Pa) at 25 deg C
Water Solubility Estimate from Log Kow (WSKOW v1.41):
Water Solubility at 25 deg C (mg/L): 0.04646
log Kow used: 5.20 (expkow database)
no-melting pt equation used
Water Sol (Exper. database match) = 0.017 mg/L (25 deg C)
Exper. Ref: KOCHETKOV,A ET AL. (2001)
Water Sol Estimate from Fragments:
Wat Sol (v1.01 est) = 0.019303 mg/L
ECOSAR Class Program (ECOSAR v1.00):
Class(es) found:
Neutral Organics
Henrys Law Constant (25 deg C) [HENRYWIN v3.20]:
Bond Method : 1.20E-001 atm-m3/mole (1.21E+004 Pa-m3/mole)
Group Method: Incomplete
Exper Database: 3.06E-01 atm-m3/mole (3.10E+004 Pa-m3/mole)
For Henry LC Comparison Purposes:
User-Entered Henry LC: not entered
Henrys LC [via VP/WSol estimate using User-Entered or Estimated values]:
HLC: 2.289E+000 atm-m3/mole (2.320E+005 Pa-m3/mole)
VP: 0.218 mm Hg (source: MPBPVP)
WS: 0.0465 mg/L (source: WSKOWWIN)
Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
Log Kow used: 5.20 (exp database)
Log Kaw used: 1.097 (exp database)
Log Koa (KOAWIN v1.10 estimate): 4.103
Log Koa (experimental database): None
Probability of Rapid Biodegradation (BIOWIN v4.10):
Biowin1 (Linear Model) : 0.5710
Biowin2 (Non-Linear Model) : 0.0948
Expert Survey Biodegradation Results:
Biowin3 (Ultimate Survey Model): 2.3798 (weeks-months)
Biowin4 (Primary Survey Model) : 3.3128 (days-weeks )
MITI Biodegradation Probability:
Biowin5 (MITI Linear Model) : -0.3868
Biowin6 (MITI Non-Linear Model): 0.0003
Anaerobic Biodegradation Probability:
Biowin7 (Anaerobic Linear Model): 0.0404
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): 26.7 Pa (0.2 mm Hg)
Log Koa (Koawin est ): 4.103
Kp (particle/gas partition coef. (m3/ug)):
Mackay model : 1.12E-007
Octanol/air (Koa) model: 3.11E-009
Fraction sorbed to airborne particulates (phi):
Junge-Pankow model : 4.06E-006
Mackay model : 9E-006
Octanol/air (Koa) model: 2.49E-007
Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
Hydroxyl Radicals Reaction:
OVERALL OH Rate Constant = 1.4960 E-12 cm3/molecule-sec
Half-Life = 7.150 Days (12-hr day; 1.5E6 OH/cm3)
Half-Life = 85.797 Hrs
Ozone Reaction:
No Ozone Reaction Estimation
Fraction sorbed to airborne particulates (phi):
6.53E-006 (Junge-Pankow, Mackay avg)
2.49E-007 (Koa method)
Note: the sorbed fraction may be resistant to atmospheric oxidation
Soil Adsorption Coefficient (KOCWIN v2.00):
Koc : 1.12E+005 L/kg (MCI method)
Log Koc: 5.049 (MCI method)
Koc : 3.256E+004 L/kg (Kow method)
Log Koc: 4.513 (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 = 3.098 (BCF = 1253 L/kg wet-wt)
Log Biotransformation Half-life (HL) = 1.5614 days (HL = 36.42 days)
Log BCF Arnot-Gobas method (upper trophic) = 4.013 (BCF = 1.029e+004)
Log BAF Arnot-Gobas method (upper trophic) = 5.267 (BAF = 1.85e+005)
log Kow used: 5.20 (expkow database)
Volatilization from Water:
Henry LC: 0.306 atm-m3/mole (Henry experimental database)
Half-Life from Model River: 1.969 hours
Half-Life from Model Lake : 182.9 hours (7.622 days)
Removal In Wastewater Treatment (recommended maximum 95%):
Total removal: 99.40 percent
Total biodegradation: 0.17 percent
Total sludge adsorption: 52.77 percent
Total to Air: 46.46 percent
(using 10000 hr Bio P,A,S)
Level III Fugacity Model:
Mass Amount Half-Life Emissions
(percent) (hr) (kg/hr)
Air 5.06 166 1000
Water 7.92 900 1000
Soil 42 1.8e+003 1000
Sediment 45 8.1e+003 0
Persistence Time: 937 hr