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EC number: 254-179-7
CAS number: 38888-98-1
Dynamic viscosities of 1,1’-DPE at various temperatures are given
in a handbook of the American Petroleum Institute:
Temperature (°C) Viscosity (cp)
The conversion between dynamic and kinematic viscosity is
described as follows:
dynamic viscosity (mPa*s) = kinematic viscosity (mm2/s) x density
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
(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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