Question

i tend to believe more aboard than I do at home (change the degree)​

Answer 1

Explanation:

There is no such thing as coefficient of viscosity.

Dynamic viscosity of castor oil was measured to be 800 cP at 20°C, 440 cP at 30 °C, and 300 cP at 40 °C. So it has quite high viscosity.

In another source, Scholz and Nogueira (2008) determined density as 950-974 kg.m-3 (at 15 °C), flash point as 229-260 °C, kinematic viscosity as 240-300 mm2.s-1 (at 40 °C), net calorific value as 37.2-39.5 MJ.kg-1, water content as 0.15-0.30 % and iodine number as 82-90 g.Iodine 100.g-1.