Nitric acid 68% 35kg, is a conjugate of nitrite. The nitrogen atom is abandoned to both a hydroxy group and two oxygen atoms, HNO3.
It has a molecular weight of 63.013 g/mol, is very soluble in water, is a strong oxidizer and a good conductor of electricity.
This is used in production of fertilizer, Adhesive used in food packaging, Medicinal, Purifying metals, Dye intermediate, Engraving, Drug Detection, Furniture Coating, Laboratory operation, Explosive like nitroglycerin and trinitrotoluene etc. Large quantity available.