phosphoric acid Purity: 85% Type: Food grade Package: 35kg/drum, IBC SpecificationsUsage Water treatment, food additive, etc. Appearance It is Colorless, transparent ... .0005%MAXCOLOR20% MAXDENSITY 20OC1.807~1.812 Food grade:1.Phosphoric acid is used as an additive to acidify foods ... and nutrition agent for yeast food grade phosphoric acid may be applied to flavors, canned food and light drinks as well ...