Ninhydrin C9H6O4 structure

C9H6O4 structure
Molecular Formula C9H6O4
Average mass 178.141 Da
Density 1.7±0.1 g/cm3
Boiling Point 449.3±45.0 °C at 760 mmHg
Flash Point 239.7±25.2 °C
Molar Refractivity 41.8±0.3 cm3
Polarizability 16.6±0.5 10-24cm3
Surface Tension 105.6±3.0 dyne/cm
Molar Volume 103.9±3.0 cm3

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

Density: 1.7±0.1 g/cm3
Boiling Point: 449.3±45.0 °C at 760 mmHg
Vapour Pressure: 0.0±1.2 mmHg at 25°C
Enthalpy of Vaporization: 74.6±3.0 kJ/mol
Flash Point: 239.7±25.2 °C
Index of Refraction: 1.737
Molar Refractivity: 41.8±0.3 cm3
#H bond acceptors: 4
#H bond donors: 2
#Freely Rotating Bonds: 0
#Rule of 5 Violations: 0
ACD/LogP: 1.07
ACD/LogD (pH 5.5): 0.65
ACD/BCF (pH 5.5): 1.85
ACD/KOC (pH 5.5): 54.03
ACD/LogD (pH 7.4): 0.62
ACD/BCF (pH 7.4): 1.71
ACD/KOC (pH 7.4): 49.82
Polar Surface Area: 75 Å2
Polarizability: 16.6±0.5 10-24cm3
Surface Tension: 105.6±3.0 dyne/cm
Molar Volume: 103.9±3.0 cm3

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

 
 Log Octanol-Water Partition Coef (SRC):
 Log Kow (KOWWIN v1.67 estimate) = 0.32
 Log Kow (Exper. database match) = 0.67
 Exper. Ref: Pomona (1987)

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
 Boiling Pt (deg C): 351.19 (Adapted Stein & Brown method)
 Melting Pt (deg C): 124.49 (Mean or Weighted MP)
 VP(mm Hg,25 deg C): 1.03E-008 (Modified Grain method)
 MP (exp database): 242 dec deg C
 Subcooled liquid VP: 2.31E-006 mm Hg (25 deg C, Mod-Grain method)

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
 Water Solubility at 25 deg C (mg/L): 1.506e+004
 log Kow used: 0.67 (expkow database)
 no-melting pt equation used

 Water Sol Estimate from Fragments:
 Wat Sol (v1.01 est) = 1e+006 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
 Bond Method : 3.38E-011 atm-m3/mole
 Group Method: Incomplete
 Henrys LC [VP/WSol estimate using EPI values]: 1.603E-013 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
 Log Kow used: 0.67 (exp database)
 Log Kaw used: -8.860 (HenryWin est)
 Log Koa (KOAWIN v1.10 estimate): 9.530
 Log Koa (experimental database): None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
 Biowin1 (Linear Model) : 0.4925
 Biowin2 (Non-Linear Model) : 0.1043
 Expert Survey Biodegradation Results:
 Biowin3 (Ultimate Survey Model): 2.5484 (weeks-months)
 Biowin4 (Primary Survey Model) : 3.3928 (days-weeks )
 MITI Biodegradation Probability:
 Biowin5 (MITI Linear Model) : 0.5181
 Biowin6 (MITI Non-Linear Model): 0.4823
 Anaerobic Biodegradation Probability:
 Biowin7 (Anaerobic Linear Model): -0.6636
 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): 0.000308 Pa (2.31E-006 mm Hg)
 Log Koa (Koawin est ): 9.530
 Kp (particle/gas partition coef. (m3/ug)):
 Mackay model : 0.00974 
 Octanol/air (Koa) model: 0.000832 
 Fraction sorbed to airborne particulates (phi):
 Junge-Pankow model : 0.26 
 Mackay model : 0.438 
 Octanol/air (Koa) model: 0.0624 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
 Hydroxyl Radicals Reaction:
 OVERALL OH Rate Constant = 1.0292 E-12 cm3/molecule-sec
 Half-Life = 10.392 Days (12-hr day; 1.5E6 OH/cm3)
 Ozone Reaction:
 No Ozone Reaction Estimation
 Fraction sorbed to airborne particulates (phi): 0.349 (Junge,Mackay)
 Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
 Koc : 10
 Log Koc: 1.000 

 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 = 0.500 (BCF = 3.162)
 log Kow used: 0.67 (expkow database)

 Volatilization from Water:
 Henry LC: 3.38E-011 atm-m3/mole (estimated by Bond SAR Method)
 Half-Life from Model River: 2.312E+007 hours (9.633E+005 days)
 Half-Life from Model Lake : 2.522E+008 hours (1.051E+007 days)

 Removal In Wastewater Treatment:
 Total removal: 1.87 percent
 Total biodegradation: 0.09 percent
 Total sludge adsorption: 1.77 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 0.00456 249 1000 
 Water 43.5 900 1000 
 Soil 56.4 1.8e+003 1000 
 Sediment 0.0873 8.1e+003 0 
 Persistence Time: 1.01e+003 hr




 

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