Acetonitrile Type: O
CAS No. 75058  
Physical Properties Value Reference
Molecular Weight (g/mol) 41.05252 TR
Solubility @ 20-25 degC (mg/L) 205000 TR
Vapor pressure @ 20-25 degC (mmHG) 90 TR
Henry's Law constant @ 20 degC 0.00120553 TR
Sorption coefficient (log L/kg) Koc -0.33 TR
Octanol-water partition coefficient (log L/kg) -0.34 TR
Diffusion coefficient in air (cm^2/s) 0.128 TR
Diffusion coefficient in water (cm^2/s) 1.445e-005 TR
     
Miscellaneous Parameters Value Reference
Relative bioavailability factor (-) 1 T
Analytical Detection Limits:
Water (mg/L) 0.1 S
Soil (mg/kg) 0.1 S
First-order decay half lives (days):
Saturated zone 360  
Unsaturated zone 360 H
Soil-to-plant biotransfer factor (0):
Above ground veg. -  
Below ground veg. - -
     
Toxicity Data Value Reference
EPA weight of evidence D  
Carcinogen FALSE  
Oral slope factor (1/[mg/kg/day]) - -
Inhalation unit risk factor (1/[ug/m^3]) - -
Oral reference dose (mg/kg/day) - -
Inhalation reference conc. (mg/m^3) 0.06 TR
     
Dermal Exposure Value Reference
Dermal adsorption fraction (-) 0 TR
Gastrointestinal adsorption fraction (-) 0.8 TR
Dermal permeability coefficient (cm/hr) - -
Lag time for dermal exposure (hr) - -
Critical dermal exposure time (hr) -  
Relative contribution of perm. coeff. (-) -  
     
Regulatory Standards Value Reference
Primary MCL - -
Secondary MCL - -
Drinking Water MCLs (mg/L):
Occupational Air PEL/TWA (mg/m^3) 34 NI
Surface water quality criteria (mg/L)
Aquatic life protection: Fresh water biota - -
Aquatic life protection: Marine biota - -
Human health: Drinking / freshwater fish - -
Human health: Fresh water fishing only - -
Human health: Salt water fishing only - -
     
LAST UPDATE: Friday, 05 August 2011