items
index
Appearance
Umber transparent liquid
Off white to yellow powder
Active content(as DTPMP) %
24.0-26.0
≥58.0
Active content(as DTPMP •Na5) %
28.5-31.0
≥69.1
Total phosphoric acid (PO43-) %
19.7-21.7
44.0-46.0
Chloride (Cl-) % ≤
5.0
10
Density (20℃) g/cm3 ≥
1.25
Iron ( as Fe2+ ) μg/g ≤
20
40
pH (1% water solution)
6.0-8.0