Phosphoric Acid is produced by THERMAL PROCESS from yellow phosphorous with high purity, low ... OXIDE (H3PO3): 0.002%Properties: 1.Phosphoric Acid is Colorless, transparent and syrupy liquid, and melting ... degrees Celsius. 2.It is high boiling acid, non volatile and difficult to decomposition, and ... strong acid, its acid is stronger than carbonic acid. When the PH is different, Phosphoric Acid and sodium ...