- #1
jadelamlam
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Homework Statement
My textbook states that one of the safety precautions to be taken in the fractional distillation of petroleum(in school laboratory) is using a small flame to heat the rocksil(rocksil is soaked with petroleum),and avoil using stationary flame for heating.
Can anyone explain?
Homework Equations
The Attempt at a Solution
I guess the reason of using a small flame is to avoid the breaking of test tube(test tube is used to hold the rocksil)?But I have no idea on why shouldn't we use a stationary flame for heating.