Nitric acid (HNO3), also known as aqua fortis and spirit of niter, is a highly corrosive strong mineral acid. The pure compound is colorless. Most commercially available nitric acid has a concentration of 68%. Nitric acid is also commonly used as a strong oxidizing agent.
Specification
| Sr. No | Determination | Specification |
|---|---|---|
| 1 | Total acidity (As HNO3)% by mass | 68 % min |
| 2 | Appearance | Clear Colorless Liquid |
| 3 | Nitrogen oxides(as HNO2) % by mass | 0.006 Max |
| 4 | Chlorides(as Cl )%by mass max | 0.002 Max |
| 5 | Sulphate (as H2SO4) % by mass | 0.005 Max |
| 6 | Residue Ignition | 0.05 Max |