1.So some renovations should be made,for example,increasing the solvent ratio of propane deasphalting;using hydrofinishing instead of clay treating;mo...
15.Initially, air conditioners like Carrier's used chemicals like ammonia or propane to transfer heat, but these were really dangerous when they leaked.
20.Now you're probably picking up on a lot of words that you've heard before, even outside of chemistry class: octane, propane, methane, paraffin, and so on.