Diisobutylene (trimethyl-1-pentene, 2,4,4-) Type: O
CAS No. 107391  
Physical Properties Value Reference
Molecular Weight (g/mol) 112.2144 TR
Solubility @ 20-25 degC (mg/L) 3.173823101 TR
Vapor pressure @ 20-25 degC (mmHG) 37.96836427 TR
Henry's Law constant @ 20 degC 73.357391387 TR
Sorption coefficient (log L/kg) Koc 3.7524831225 TR
Octanol-water partition coefficient (log L/kg) 4.639579647 TR
Diffusion coefficient in air (cm^2/s) 0.06249909067 TR
Diffusion coefficient in water (cm^2/s) 6.6984037493e-006 TR
     
Miscellaneous Parameters Value Reference
Relative bioavailability factor (-) 1 T
Analytical Detection Limits:
Water (mg/L) - -
Soil (mg/kg) - -
First-order decay half lives (days):
Saturated zone -  
Unsaturated zone - -
Soil-to-plant biotransfer factor (0):
Above ground veg. -  
Below ground veg. - -
     
Toxicity Data Value Reference
EPA weight of evidence NA  
Carcinogen FALSE  
Oral slope factor (1/[mg/kg/day]) - -
Inhalation unit risk factor (1/[ug/m^3]) - -
Oral reference dose (mg/kg/day) 0.06 TR
Inhalation reference conc. (mg/m^3) 0.2 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) - -
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: Sunday, 29 November -0001