Iron Vitriol

exploration

Järnvitriol

Using iron (II) sulphate (iron vitriol) to colour lime render

I have recently carried out some research on the use of iron vitriol to get a lime wash that has a particular shade of orange, similar to that of some of the houses in Nyboder, Copenhagen, This PDF (download here in English or here in Swedish) is a summary of what I found out.