H3PO4 phosphoric acid 85 1.85% 81% 75% 2.Food Grade and Tech grade Phosphoric acid is a clear, colorless, odorless, viscous liquid. It is ... main ingredient in production of various food grade phosphates.PA 85% FG specification:Sr. No.ParticularsUnitNational standard Specs (Food grade)ABGC ... .414.Nitratesppm-Max515.Volatile Acidsppm-Max1016.P2O5%-Min61.58 Phosphoric Acid 85%min