RFNA is a rocket fuel (a storeable oxidiser): red fuming nitric acid. HNO3 + 13% N2O4 and 3% H20. The colour of the resulting red fuming nitric acid is imparted by N204.
... support himself. Later he was admitted
to the Augustinian convent of Mount Saint Agnes
near Zwolle where his brother John had been before
him and had risen to the ...