The boiling range of that cut is from an initial boiling point of about 150 �C to a final boiling point of about 270 �C, and it also contains many different hydrocarbons.
2.
Therefore, it has an initial boiling point of about 35 �C and a final boiling point of about 200 �C . Each cut produced in the fractionating columns has a different boiling range.
3.
The feedstock to an FCC is usually that portion of the crude oil that has an initial boiling point of 340 �C or higher at atmospheric pressure and an average molecular weight ranging from about 200 to 600 or higher.
4.
The heavy naphtha has an initial boiling point of about 140 to 150 �C and a final boiling point of about 190 to 205 �C . The naphthas derived from the distillation of crude oils are referred to as " straight-run " naphthas.
5.
DIN 51630 provides for petroleum spirit ( also called spezialbenzine or petrolether ) which is described as " a special boiling-point spirit commonly used in laboratory applications, having high volatility and low aromatics content . " Its initial boiling point is above 25 �C, its final boiling point up to 80 �C.
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