Specification ATMP Liquit Appearance: colorless or light yellow transparent liquid Active acid %: 48.0-52.0 Chloride (as Cl-)%: 2.0(or1.0) min pH value (1%solution): 2.0 max Fe (as Fe3+) (ppm): 20 Density (20C)g/cm3: 1.33 min Colour APHA (Hazen): 40 max ATMP Solid: Appearance: White crystal powder Active acid %: 95min Chloride (as Cl-)%: 1.0 min pH value (1% solution): 2.0 max Fe (as Fe3+) (ppm): 20 Density (20f+)g/cm3 Colour APHA (Hazen).