This page contains the EPI System Summary only.
For complete control of this information -
Download the free EPI SuiteTM v4.0 program : here
also you can go back to the Datasheet
CAS Number: 7414-83-7
SMILES : CC(O)(P(O)(O([Na]))=O)P(O)(O([Na]))=O
CHEM : Disodium ethydronate
MOL FOR: C2 H6 O7 P2 Na2
MOL WT : 249.99
------------------------------ EPI SUMMARY (v4.10) --------------------------
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 v1.68 estimate) = -4.44
Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPVP v1.43):
Boiling Pt (deg C): 480.00 (Adapted Stein & Brown method)
Melting Pt (deg C): 90.27 (Mean or Weighted MP)
VP(mm Hg,25 deg C): 2.06E-011 (Modified Grain method)
VP (Pa, 25 deg C) : 2.74E-009 (Modified Grain method)
Subcooled liquid VP: 8.76E-011 mm Hg (25 deg C, Mod-Grain method)
: 1.17E-008 Pa (25 deg C, Mod-Grain method)
Water Solubility Estimate from Log Kow (WSKOW v1.42):
Water Solubility at 25 deg C (mg/L): 1e+006
log Kow used: -4.44 (estimated)
no-melting pt equation used
Water Sol Estimate from Fragments:
Wat Sol (v1.01 est) = 1e+006 mg/L
ECOSAR Class Program (ECOSAR v1.00):
Class(es) found:
Neutral Organics
Henrys Law Constant (25 deg C) [HENRYWIN v3.20]:
Bond Method : 9.87E-026 atm-m3/mole (1.00E-020 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: 6.776E-018 atm-m3/mole (6.866E-013 Pa-m3/mole)
VP: 2.06E-011 mm Hg (source: MPBPVP)
WS: 1E+006 mg/L (source: WSKOWWIN)
Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
Log Kow used: -4.44 (KowWin est)
Log Kaw used: -23.394 (HenryWin est)
Log Koa (KOAWIN v1.10 estimate): 18.954
Log Koa (experimental database): None
Probability of Rapid Biodegradation (BIOWIN v4.10):
Biowin1 (Linear Model) : 0.4655
Biowin2 (Non-Linear Model) : 0.1624
Expert Survey Biodegradation Results:
Biowin3 (Ultimate Survey Model): 2.5318 (weeks-months)
Biowin4 (Primary Survey Model) : 3.3970 (days-weeks )
MITI Biodegradation Probability:
Biowin5 (MITI Linear Model) : 0.1672
Biowin6 (MITI Non-Linear Model): 0.0473
Anaerobic Biodegradation Probability:
Biowin7 (Anaerobic Linear Model): 0.4223
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): 1.17E-008 Pa (8.76E-011 mm Hg)
Log Koa (Koawin est ): 18.954
Kp (particle/gas partition coef. (m3/ug)):
Mackay model : 257
Octanol/air (Koa) model: 2.21E+006
Fraction sorbed to airborne particulates (phi):
Junge-Pankow model : 1
Mackay model : 1
Octanol/air (Koa) model: 1
Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
Hydroxyl Radicals Reaction:
OVERALL OH Rate Constant = 0.9368 E-12 cm3/molecule-sec
Half-Life = 11.418 Days (12-hr day; 1.5E6 OH/cm3)
Ozone Reaction:
No Ozone Reaction Estimation
Fraction sorbed to airborne particulates (phi):
1 (Junge-Pankow, Mackay avg)
1 (Koa method)
Note: the sorbed fraction may be resistant to atmospheric oxidation
Soil Adsorption Coefficient (KOCWIN v2.00):
Koc : 1.361 L/kg (MCI method)
Log Koc: 0.134 (MCI method)
Koc : 0.01449 L/kg (Kow method)
Log Koc: -1.839 (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 v3.01):
Log BCF from regression-based method = 0.500 (BCF = 3.162 L/kg wet-wt)
Log Biotransformation Half-life (HL) = -2.2339 days (HL = 0.005836 days)
Log BCF Arnot-Gobas method (upper trophic) = -0.040 (BCF = 0.9127)
Log BAF Arnot-Gobas method (upper trophic) = -0.040 (BAF = 0.9127)
log Kow used: -0.01 (estimated)
Volatilization from Water:
Henry LC: 9.87E-026 atm-m3/mole (estimated by Bond SAR Method)
Half-Life from Model River: 9.379E+021 hours (3.908E+020 days)
Half-Life from Model Lake : 1.023E+023 hours (4.263E+021 days)
Removal In Wastewater Treatment:
Total removal: 1.85 percent
Total biodegradation: 0.09 percent
Total sludge adsorption: 1.75 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 1.33e-014 274 1000
Water 44.3 900 1000
Soil 55.6 1.8e+003 1000
Sediment 0.0878 8.1e+003 0
Persistence Time: 1e+003 hr