DIETHYL DITHIOPHOSPHATE C4H11O2PS2 structure – Flashcards

Predicted data is generated using the ACD/Labs Percepta Platform – PhysChem Module

Predicted data is generated using the US Environmental Protection Agency’s EPISuite™

 
 Log Octanol-Water Partition Coef (SRC):
 Log Kow (KOWWIN v1.67 estimate) = 2.73

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
 Boiling Pt (deg C): 283.76 (Adapted Stein & Brown method)
 Melting Pt (deg C): -27.61 (Mean or Weighted MP)
 VP(mm Hg,25 deg C): 0.00038 (Modified Grain method)

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
 Water Solubility at 25 deg C (mg/L): 237.9
 log Kow used: 2.73 (estimated)
 no-melting pt equation used

 Water Sol Estimate from Fragments:
 Wat Sol (v1.01 est) = 487.28 mg/L

 ECOSAR Class Program (ECOSAR v0.99h):
 Class(es) found:
 Neutral Organics

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
 Bond Method : 3.48E-007 atm-m3/mole
 Group Method: Incomplete
 Henrys LC [VP/WSol estimate using EPI values]: 3.914E-007 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
 Log Kow used: 2.73 (KowWin est)
 Log Kaw used: -4.847 (HenryWin est)
 Log Koa (KOAWIN v1.10 estimate): 7.577
 Log Koa (experimental database): None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
 Biowin1 (Linear Model) : 0.6589
 Biowin2 (Non-Linear Model) : 0.5901
 Expert Survey Biodegradation Results:
 Biowin3 (Ultimate Survey Model): 2.7876 (weeks )
 Biowin4 (Primary Survey Model) : 3.5791 (days-weeks )
 MITI Biodegradation Probability:
 Biowin5 (MITI Linear Model) : 0.2578
 Biowin6 (MITI Non-Linear Model): 0.1243
 Anaerobic Biodegradation Probability:
 Biowin7 (Anaerobic Linear Model): 0.7289
 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): 0.0507 Pa (0.00038 mm Hg)
 Log Koa (Koawin est ): 7.577
 Kp (particle/gas partition coef. (m3/ug)):
 Mackay model : 5.92E-005 
 Octanol/air (Koa) model: 9.27E-006 
 Fraction sorbed to airborne particulates (phi):
 Junge-Pankow model : 0.00213 
 Mackay model : 0.00471 
 Octanol/air (Koa) model: 0.000741 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
 Hydroxyl Radicals Reaction:
 OVERALL OH Rate Constant = 91.7686 E-12 cm3/molecule-sec
 Half-Life = 0.117 Days (12-hr day; 1.5E6 OH/cm3)
 Half-Life = 1.399 Hrs
 Ozone Reaction:
 No Ozone Reaction Estimation
 Fraction sorbed to airborne particulates (phi): 0.00342 (Junge,Mackay)
 Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
 Koc : 35.6
 Log Koc: 1.552 

 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 = 1.404 (BCF = 25.37)
 log Kow used: 2.73 (estimated)

 Volatilization from Water:
 Henry LC: 3.48E-007 atm-m3/mole (estimated by Bond SAR Method)
 Half-Life from Model River: 2297 hours (95.72 days)
 Half-Life from Model Lake : 2.518E+004 hours (1049 days)

 Removal In Wastewater Treatment:
 Total removal: 3.97 percent
 Total biodegradation: 0.11 percent
 Total sludge adsorption: 3.84 percent
 Total to Air: 0.02 percent
 (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
 Mass Amount Half-Life Emissions
 (percent) (hr) (kg/hr)
 Air 0.276 2.8 1000 
 Water 26 360 1000 
 Soil 73.4 720 1000 
 Sediment 0.267 3.24e+003 0 
 Persistence Time: 459 hr