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CAS Num: 057893-27-3


CHEM : 1-Oxaspiro[4.5]decan-6-ol, 2,6,10,10-tetramethyl-, acetate,[2a,5a(S*)


MOL FOR: C15 H26 O3

MOL WT : 254.37

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

Physical Property Inputs:

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

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

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

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

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

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

Log Octanol-Water Partition Coef (SRC):

Log Kow (KOWWIN v1.67 estimate) = 4.38

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

Boiling Pt (deg C): 293.71 (Adapted Stein & Brown method)

Melting Pt (deg C): 78.27 (Mean or Weighted MP)

VP(mm Hg,25 deg C): 0.000848 (Modified Grain method)

VP (Pa, 25 deg C) : 0.113 (Modified Grain method)

Subcooled liquid VP: 0.00272 mm Hg (25 deg C, Mod-Grain method)

: 0.363 Pa (25 deg C, Mod-Grain method)

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

Water Solubility at 25 deg C (mg/L): 4.081

log Kow used: 4.38 (estimated)

no-melting pt equation used

Water Sol Estimate from Fragments:

Wat Sol (v1.01 est) = 96.366 mg/L

ECOSAR Class Program (ECOSAR v1.00):

Class(es) found:


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

Bond Method : 1.13E-006 atm-m3/mole (1.15E-001 Pa-m3/mole)

Group Method: 2.28E-007 atm-m3/mole (2.31E-002 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: 6.955E-005 atm-m3/mole (7.047E+000 Pa-m3/mole)

VP: 0.000848 mm Hg (source: MPBPVP)

WS: 4.08 mg/L (source: WSKOWWIN)

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

Log Kow used: 4.38 (KowWin est)

Log Kaw used: -4.335 (HenryWin est)

Log Koa (KOAWIN v1.10 estimate): 8.715

Log Koa (experimental database): None

Probability of Rapid Biodegradation (BIOWIN v4.10):

Biowin1 (Linear Model) : -0.0985

Biowin2 (Non-Linear Model) : 0.0059

Expert Survey Biodegradation Results:

Biowin3 (Ultimate Survey Model): 2.1322 (months )

Biowin4 (Primary Survey Model) : 3.2396 (weeks )

MITI Biodegradation Probability:

Biowin5 (MITI Linear Model) : 0.6166

Biowin6 (MITI Non-Linear Model): 0.4672

Anaerobic Biodegradation Probability:

Biowin7 (Anaerobic Linear Model): -1.2105

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): 0.363 Pa (0.00272 mm Hg)

Log Koa (Koawin est ): 8.715

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

Mackay model : 8.27E-006

Octanol/air (Koa) model: 0.000127

Fraction sorbed to airborne particulates (phi):

Junge-Pankow model : 0.000299

Mackay model : 0.000661

Octanol/air (Koa) model: 0.0101

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

Hydroxyl Radicals Reaction:

OVERALL OH Rate Constant = 17.7439 E-12 cm3/molecule-sec

Half-Life = 0.603 Days (12-hr day; 1.5E6 OH/cm3)

Half-Life = 7.234 Hrs

Ozone Reaction:

No Ozone Reaction Estimation

Fraction sorbed to airborne particulates (phi):

0.00048 (Junge-Pankow, Mackay avg)

0.0101 (Koa method)

Note: the sorbed fraction may be resistant to atmospheric oxidation

Soil Adsorption Coefficient (KOCWIN v2.00):

Koc : 523.3 L/kg (MCI method)

Log Koc: 2.719 (MCI method)

Koc : 1555 L/kg (Kow method)

Log Koc: 3.192 (Kow method)

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

Total Kb for pH > 8 at 25 deg C : 3.014E-002 L/mol-sec

Kb Half-Life at pH 8: 266.184 days

Kb Half-Life at pH 7: 7.288 years

(Total Kb applies only to esters, carbmates, alkyl halides)

Bioaccumulation Estimates (BCFBAF v3.00):

Log BCF from regression-based method = 2.556 (BCF = 359.5 L/kg wet-wt)

Log Biotransformation Half-life (HL) = -0.1558 days (HL = 0.6986 days)

Log BCF Arnot-Gobas method (upper trophic) = 2.422 (BCF = 264)

Log BAF Arnot-Gobas method (upper trophic) = 2.422 (BAF = 264.2)

log Kow used: 4.38 (estimated)

Volatilization from Water:

Henry LC: 1.13E-006 atm-m3/mole (estimated by Bond SAR Method)

Half-Life from Model River: 828 hours (34.5 days)

Half-Life from Model Lake : 9166 hours (381.9 days)

Removal In Wastewater Treatment:

Total removal: 49.62 percent

Total biodegradation: 0.47 percent

Total sludge adsorption: 49.12 percent

Total to Air: 0.03 percent

(using 10000 hr Bio P,A,S)

Level III Fugacity Model:

Mass Amount Half-Life Emissions

(percent) (hr) (kg/hr)

Air 0.359 14.5 1000

Water 15.5 1.44e+003 1000

Soil 83.6 2.88e+003 1000

Sediment 0.5 1.3e+004 0

Persistence Time: 1.56e+003 hr

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