Cracking hydrocarbons in liquid paraffin with a catalyst
Procedure. Place about a 2 cm 3 depth of mineral wool in the bottom of the boiling tube and gently press it in place with a glass rod. Drop about 2 cm 3 of liquid paraffin on to the wool, using a dropping pipette. Use enough paraffin to completely soak the mineral wool, but not so much that the paraffin runs along the side of the tube when it is placed horizontally.
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