1-Hydroxyethylidene-1,1-Diphosphonic Acid
Quantity
Unit
CAS #
2809-21-4
PRODUCT
SYNONYM
HEDP; Phosphonic acid, P,P'-(1-hydroxyethylidene)bis-; Phosphonic acid, (1-hydroxyethylidene)bis-
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FORMULA
C2H8O7P2
PHYSICAL FORM
Clear, colorless to pale yellow liquid
PHOSPHOROUS ACID
<= 2.5% wt
SPECIFIC GRAVITY AT 25°C
1.44 (+- 0.01)
ACTIVE CONTENT
60 (+-1.0)% wt.
COLOR (APHA)
<= 50
PH (1% SOLUTION)
<= 2.0
IRON AS FE
< 35 ppm
FREEZING POINT
-25C
CHLORIDE
<= 1.0% wt.
MOLECULAR WEIGHT
206.03
NOTES
Used as scale and corrosion inhibitor, deflocculant, seqestrant, water stabilizer in water treatment pipeline, and detergent under high temperature and high pH value.
Use: CHELATING
CLASS
Corrosion Inhibitors, Water Treatment Chemicals, Scale Inhibitors, Industrial Chemicals
FUNCTIONS
Anti-Corrosive, Scale Inhibitor
INDUSTRY
Industrial, Water Treatment, Anti-Corrosives
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