Nitric acid Molecular formula: hno3 Cas no. : 7697-37-2 Hs: 2808000090 Hazard class: 8 Purity: 68%, 62%, 50%, 40% Appearance: transparent colorless liquid Grade standard: industrial grade Quality standard: Standard: national standard gb/t 337.1-2014 Manufacture as per customer?s special demand Accept third part inspection Specifications:dilute nitric acid 68% and below for industry Applications: Used primarily to produce ammonium nitrate fertilizer; Also used in metal cleaning, etching, and manufacturing explosives; Used as a wet etchant in semiconductor manufacturing at a standard concentration of 67%