1-Hydroxy Ethylidene-1,1-Diphosphonic Acid Tetrasodium Salt (Powder)
Quantity
Unit
CAS #
3794-83-0
PRODUCT
SYNONYM
HEDP•Na4; Phosphonic acid, P,P'-(1-hydroxyethylidene)bis-, sodium salt (1:4); Tetrasodium (1-hydroxyethylidene)bisphosphonate
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FORMULA
C2H4O7P2Na4
PRODUCT TYPE
Organic
APPEARANCE
White Powder
ACTIVE COMPONENT (HEDP)
>= 56.0%
ACTIVE COMPONENT (HEDP NA4)
>= 79.9%
PHOSPHORIC ACID
52.0 - 54.0%
FE
<= 35.0 ppm
LOSS ON DRYING
<= 15 % (20C)
PH
11.0 - 12.0 (1% solution)
MELTING POINT
-5 c
MOLECULAR WEIGHT
293.96
SPECIFIC GRAVITY
1.30-1.35
NOTES
HEDP Na4 has a broad range of applications and is useful in very cold conditions. It can be used in oxide dissolving on metal surfaces and has good scale and corrosion inhibition effects under 250C.
Use: CHELATING, EMULSION STABILISING, VISCOSITY CONTROLLING
CLASS
Corrosion Inhibitors, Water Treatment Chemicals, Scale Inhibitors
FUNCTIONS
Anti-Corrosive, Shale Inhibitor, Metal deactivator
INDUSTRY
Water Treatment, Anti-Corrosives, Organics
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