Inherent Properties, Identifiers and References
ChemSpider ID: 1512
Empirical Formula: C2H6OS
Molecular Weight: 78.1334
Nominal Mass: 78 Da
Average Mass: 78.1334 Da
Monoisotopic Mass: 78.013935 Da
Quick Links: Permalink Similar Isomers
Systematic Name: 2-sulfanylethanol
SMILES: OCCS
InChI: InChI=1/C2H6OS/c3-1-2-4/h3-4H,1-2H2
InChIKey: DGVVWUTYPXICAM-UHFFFAOYAT
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User Data

  • experimental physchem properties
    • Melting Point: -100
    • Boiling Point: 156-158
    • Boiling Point: 157 C
    • Flash Point: 73(163F)
    • Flash Point: 73 C (closed cup)
    • Specific Gravity: 1.114
    • Refraction Index: 1.5 00
  • miscellaneous
    • Appearance: colourless liquid with a very unpleasant smell
    • Stability: Stable. Incompatible with oxidizing agents, metals, moisture.Combustible.
    • Toxicity: ORL-RAT LD50 244 mg kg-1, ORL-MUS LD50 190 mg kg-1, UNR-MUS LD50 480 mg kg-1, IVN-MUS LD50 480 mg kg-1, SKN-GPG LD50 300 mg kg-1
    • Safety: DANGER: POISON, irritates skin, eyes, lungs
    • Safety: Gloves, safety glasses, good ventilation.
Names and Synonyms

Validated by Experts, Validated by Users, Non-Validated, Removed by Users, Redirected by Users, Redirect Approved by Experts

.beta.-Hy​droxyetha​nethiol

.beta.-Hy​droxyethy​lmercaptan

.beta.-Me​rcaptoeth​anol

2-Sulfany​lethanol

2-SULFHYD​RYL-ETHAN​OL

Ethanol, ​2-mercapt​o-

1-Ethanol​-2-thiol

1-Hydroxy​-2-mercap​toethane

1-Mercapt​o-2-hydro​xyethane

200-464-6 [EINECS/ELINCS]

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Database ID(s)

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(Details...) Predicted Properties
LogP: ACD/LogP: -0.23
XLogP: 0.20
ALOGPS: 0.11
# of Rule of 5 Violations: 0
ACD/LogD (pH 5.5): -0.23 ACD/LogD (pH 7.4): -0.23
ACD/BCF (pH 5.5): 1 ACD/BCF (pH 7.4): 1
ACD/KOC (pH 5.5): 17.86 ACD/KOC (pH 7.4): 17.8
#H bond acceptors: 1 #H bond donors: 1
#Freely Rotating Bonds: 3 Polar Surface Area: 34.53 Å2
Index of Refraction: 1.479 Molar Refractivity: 20.74 cm3
Molar Volume: 73.1 cm3 Polarizability: 8.22 10-24cm3
Surface Tension: 37 dyne/cm Density: 1.068 g/cm3
Flash Point: 73.9 °C Enthalpy of Vaporization: 45.85 kJ/mol
Boiling Point: 157 °C at 760 mmHg Vapour Pressure: 1.01 mmHg at 25°C
            
 Log Octanol-Water Partition Coef (SRC):
    Log Kow (KOWWIN v1.67 estimate) =  -0.20

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  147.39  (Adapted Stein & Brown method)
    Melting Pt (deg C):  -45.59  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  0.861  (Mean VP of Antoine & Grain methods)
    MP  (exp database):  < 25 deg C
    BP  (exp database):  158 deg C
    VP  (exp database):  1.76E+00 mm Hg at 25 deg C

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  1.944e+005
       log Kow used: -0.20 (estimated)
       no-melting pt equation used
     Water Sol (Exper. database match) =  1e+006 mg/L ( deg C)
        Exper. Ref:  MERCK INDEX (1996)

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  1.9145e+005 mg/L
    Wat Sol (Exper. database match) =  1000000.00
       Exper. Ref:  MERCK INDEX (1996)

 ECOSAR Class Program (ECOSAR v0.99h):
    Class(es) found:
       Thiols(mercaptans)

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   1.27E-007  atm-m3/mole
   Group Method:   3.38E-008  atm-m3/mole
 Henrys LC [VP/WSol estimate using EPI values]:  4.553E-007 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  -0.20  (KowWin est)
  Log Kaw used:  -5.285  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  5.085
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.8691
   Biowin2 (Non-Linear Model)     :   0.9533
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   3.1865  (weeks       )
   Biowin4 (Primary Survey Model) :   3.8645  (days        )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.7397
   Biowin6 (MITI Non-Linear Model):   0.8941
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  1.0208
 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):  235 Pa (1.76 mm Hg)
  Log Koa (Koawin est  ): 5.085
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  1.28E-008 
       Octanol/air (Koa) model:  2.99E-008 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  4.62E-007 
       Mackay model           :  1.02E-006 
       Octanol/air (Koa) model:  2.39E-006 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  45.6217 E-12 cm3/molecule-sec
      Half-Life =     0.234 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     2.813 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 7.42E-007 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  1.325
      Log Koc:  0.122 

 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: -0.20 (estimated)

 Volatilization from Water:
    Henry LC:  3.38E-008 atm-m3/mole  (estimated by Group SAR Method)
    Half-Life from Model River: 1.531E+004  hours   (638 days)
    Half-Life from Model Lake : 1.671E+005  hours   (6963 days)

 Removal In Wastewater Treatment:
    Total removal:               1.85  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.76  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       0.39            5.63         1000       
   Water     43.2            360          1000       
   Soil      56.3            720          1000       
   Sediment  0.0795          3.24e+003    0          
     Persistence Time: 430 hr