Monday 2 September 2013

CaCO3 + heat → CaO + CO2

My walk around the Rhug Estate reminded me of the phrase "In the limelight." This saying had its origin in the theatre world before the invention of electricity. The stage would be lit by heating a block of quicklime (Calcium Oxide or CaO), which was set in special containers on the stage. This lime had its origin in lime kilns, and the disused remains of some of these can be found on the Rhug Estate. The most common use was in converting limestone into fertiliser.

Kilns being reclaimed by the forest

These kilns represented a huge investment.

This part of the limestone cliff that adjoins the kilns, and may one day be converted into a climbing wall.

the remains of a sign, warning of the blasting that would have been a regular occurrence here.

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