Tetra sodium of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP Na4)

HEDP Na4 approved by SGS
HEDP Na4 approved by ISO
HEDP Na4 approved by CCIC
HEDP Na4 approved by REACH
Tetra sodium of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP Na4) Specification:
items
index
Appearance
White powder
Colorless to light yellow transparent liquid
Active componentHEDP
56.0 min
20.3-21.7
Active componentHEDPNa4
79.9 min
29.0-31.0
Total phosphoric acid (as PO
4
3-)
52.0-54.0
18.4-20.4
Fe ppm
35.0 max
20 max
Dry weight loss,%
15 max
--
density20g/cm3
--
1.26-1.36
PH
11.0-12.0 (1% water solution)
10.0-12.0 (as it)