Name: hydrofluoric acid Molecular formula: hf Cas no. 7664-39-3 Einecs no. 231-634-8 Purity: 70%/55%/49% Grade standard: industrial grade Appearance : colorless transparent fuming liquid Application: glass etchant, metal treatment Melting point: -83.6â?? Boiling point: 19.5â?? Vapor pressure: 53032 Density: 1.15g/ml Critical pressure: 6.48 mpa Critical temperature: 188â?? Critical density: 0.29g/cm Standard: gb7747-87 Hs code: 2811110000
