posted by Katy .
I'm stumped with another question too.
Can petroleum fractions be separated at room temperature on the basis of their viscosities?
I would guess that they could but i don't know how to explain it
Thank you for using the Jiskha Homework Help Forum again. Try the following:
2. (part II of #1): http://www.patentstorm.us/patents/5731272-description.html