This didn’t go very well. In theory it should have produced a higher N% but this is taking in account that it is free of impurities.
Do not attempt this if you have no clue what your doing. It involves strong acids and oxidizers which could leave you severely injured.
If you attempt to try this, wear proper PPE and have good ventilation.
![](https://i.ytimg.com/vi/ICMvDuftESo/maxresdefault.jpg)