... acid Mainly used in food beverage,preservative,food additives,food flavor,sauce, vinegar, food acidity regular, etc. ... not return spilled material to original container. food grade glacial acetic acid ItemStandardResultAppearanceColorless transparent liquidqualifiedChroma ... 10max9Acidity,w% 99.5min99.6Potassium permanganate experiment minute 32min38Evaporation residue,w/% 0.005max0.004Freezing point ...