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CAS Num: 000592-82-5


CHEM : Butane, 1-isothiocyanato-

MOL FOR: C5 H9 N1 S1

MOL WT : 115.19

------------------------------ 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) = 2.77

Log Kow (Exper. database match) = 2.92

Exper. Ref: AUGUSTIN,S ET AL. (1987)

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

Boiling Pt (deg C): 159.65 (Adapted Stein & Brown method)

Melting Pt (deg C): -26.20 (Mean or Weighted MP)

VP(mm Hg,25 deg C): 1.72 (Mean VP of Antoine & Grain methods)

VP (Pa, 25 deg C) : 229 (Mean VP of Antoine & Grain methods)

BP (exp database): 168 deg C

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

Water Solubility at 25 deg C (mg/L): 335.1

log Kow used: 2.92 (expkow database)

no-melting pt equation used

Water Sol Estimate from Fragments:

Wat Sol (v1.01 est) = 561.04 mg/L

ECOSAR Class Program (ECOSAR v1.00):

Class(es) found:


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

Bond Method : 7.27E-003 atm-m3/mole (7.37E+002 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: 7.780E-004 atm-m3/mole (7.883E+001 Pa-m3/mole)

VP: 1.72 mm Hg (source: MPBPVP)

WS: 335 mg/L (source: WSKOWWIN)

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

Log Kow used: 2.92 (exp database)

Log Kaw used: -0.527 (HenryWin est)

Log Koa (KOAWIN v1.10 estimate): 3.447

Log Koa (experimental database): None

Probability of Rapid Biodegradation (BIOWIN v4.10):

Biowin1 (Linear Model) : 0.8011

Biowin2 (Non-Linear Model) : 0.9615

Expert Survey Biodegradation Results:

Biowin3 (Ultimate Survey Model): 3.2429 (weeks )

Biowin4 (Primary Survey Model) : 3.9506 (days )

MITI Biodegradation Probability:

Biowin5 (MITI Linear Model) : 0.5181

Biowin6 (MITI Non-Linear Model): 0.6244

Anaerobic Biodegradation Probability:

Biowin7 (Anaerobic Linear Model): 0.5168

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): 208 Pa (1.56 mm Hg)

Log Koa (Koawin est ): 3.447

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

Mackay model : 1.44E-008

Octanol/air (Koa) model: 6.87E-010

Fraction sorbed to airborne particulates (phi):

Junge-Pankow model : 5.21E-007

Mackay model : 1.15E-006

Octanol/air (Koa) model: 5.5E-008

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

Hydroxyl Radicals Reaction:

OVERALL OH Rate Constant = 3.8780 E-12 cm3/molecule-sec

Half-Life = 2.758 Days (12-hr day; 1.5E6 OH/cm3)

Half-Life = 33.098 Hrs

Ozone Reaction:

No Ozone Reaction Estimation

Fraction sorbed to airborne particulates (phi):

8.37E-007 (Junge-Pankow, Mackay avg)

5.5E-008 (Koa method)

Note: the sorbed fraction may be resistant to atmospheric oxidation

Soil Adsorption Coefficient (KOCWIN v2.00):

Koc : 64.49 L/kg (MCI method)

Log Koc: 1.810 (MCI method)

Koc : 692.9 L/kg (Kow method)

Log Koc: 2.841 (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 = 1.594 (BCF = 39.23 L/kg wet-wt)

Log Biotransformation Half-life (HL) = -0.5832 days (HL = 0.2611 days)

Log BCF Arnot-Gobas method (upper trophic) = 1.680 (BCF = 47.84)

Log BAF Arnot-Gobas method (upper trophic) = 1.680 (BAF = 47.84)

log Kow used: 2.92 (expkow database)

Volatilization from Water:

Henry LC: 0.00727 atm-m3/mole (estimated by Bond SAR Method)

Half-Life from Model River: 1.182 hours

Half-Life from Model Lake : 102.9 hours (4.287 days)

Removal In Wastewater Treatment:

Total removal: 74.63 percent

Total biodegradation: 0.05 percent

Total sludge adsorption: 2.89 percent

Total to Air: 71.70 percent

(using 10000 hr Bio P,A,S)

Level III Fugacity Model:

Mass Amount Half-Life Emissions

(percent) (hr) (kg/hr)

Air 31.8 66.2 1000

Water 51.5 360 1000

Soil 16.4 720 1000

Sediment 0.23 3.24e+003 0

Persistence Time: 122 hr

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