Nitric acid 68% HNO3 68% Min; HNO2 0.05% Max. Molecular formula: HNO3 Molecular weight: 63.02 Appearance: Light yellow, transparent liquid. Physicochemical characteristics: The specific gravity is 1.368-1.486 when the temperature is 20. It is strong oxidizer, a kind of strong acid with strong causticity. It is easy to be decompounded when heated. Main use: Can be used in medicine, dyestuff, equipment for taking photos. It is also one of the important materials of explosive industry. The packing is 35kgs HDPE black drum or 260kgs big drum.