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EC number: 254-179-7 | CAS number: 38888-98-1
Viscosity
Administrative data
Link to relevant study record(s)
Description of key information
Key value for chemical safety assessment
- Viscosity:
- 4.484 mPa · s (dynamic)
- at the temperature of:
- 20 °C
Additional information
Dynamic viscosities of 1,1’-DPE at various temperatures are given in a handbook of the American Petroleum Institute:
Temperature (°C) Viscosity (cp)
0.0 8.983
20.0 4.484
37.8 2.844
60.0 1.340
98.9 1.075
The conversion between dynamic and kinematic viscosity is described as follows:
dynamic viscosity (mPa*s) = kinematic viscosity (mm2/s) x density (g/cm3)
For 1,1’-DPE the kinematic viscosity at 37.8 °C is 2.845 mm2/s.
A substance is classified in Category 1:
(a) based on reliable and good quality human evidence
or
(b) if it is a hydrocarbon and has a kinematic viscosity of 20.5 mm2/s or less, measured at 40 °C .
According to these criteria 1,1’-DPE has to be classified into Category 1 for aspiration hazard. No further testing is required.
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