CAS No.:
29329-71-3 (x-Na), 3794-83-0
(4-Na)
Molecular Formula:
C2H2O7P2Na4
Molecular weight: 294
Structural Formula:
Properties:
HEDP•Na4 is the sodium salt
of HEDP, it is an excellent
calcium carbonate scale inhibitor,
it can be used in low pressure
boiler water system, circulation
water system, industrial and
municipal cleaning water system
and swimming pool.
Specification:
|
items |
index |
|
Active acid ％ |
20.3-21.7 |
56 min |
|
Active salt %
|
29.0-31.0 |
79.9 min |
|
Fe ppm |
20 min |
35 min |
|
pH |
10-12(as it) |
11.0-12.0（1％ solution） |
|
Density (20℃) g/cm3
|
1.26-1.36 |
— |
Other salt of HEDP:
|
Abbr. |
CAS No. |
Mw |
Active acid % |
|
HEDP•Na |
29329-71-3 |
228 |
19.0-21.0 |
|
HEDP•Na2 |
7417-83-7 |
250 |
16.5 min |
|
HEDP.K |
67953-76-8 |
— |
26.0 - 30.0 |
