The reaction proceeds in several stages, mono-, diand finally tri-nitrate being produced, the final stage requiring sulphuric acid as a dehydrator.
It is readily nitrated to nitrobenzene, two, and even three nitro groups being introduced if some dehydrator such as concentrated sulphuric acid be present.
Practical Items: Farmers are by nature very practical, and useful gifts such as a multi-tool or pocketknife, barometer, rain gauge, or food dehydrator kit can be perfect for any occasion.
Some raw recipes also require an Excalibur dehydrator, but none of the recipes in my book require a dehydrator.
I did that on purpose to save time and to make it easy, but as you get more advanced you will want to use a dehydrator.