... grade acetic acid 2.Crude scale 95%min 3.CAS 64-19-7 4.For textile,fiber,pharmaceutical,dyestuff, ... 05 Melting Point:16.665±0.002 Boiling Point:117.9 Viscosity: 1.22 Flash Point: 39 Refraction Index: 1 ... food grade glacial acetic acid ItemStandardResultAppearanceColorless transparent liquidqualifiedChroma/(platinum-cobalt No./hazen units) 10max9Acidity,w% 99.5min99.6Potassium permanganate experiment ...