Etidronic acid
time:2013-06-05 02:42:27,count:0
Etidronic acid
Alias
Phosphonic acid, (1-hydroxyethylidene)di-
Phosphonic acid, P,P'-(1-hydroxyethylidene)bis-
HEDP
Category
Anionic surfactants-Phosphate
CAS No.
2809-21-4
Molecular Formula & Molecular Weight
Molecular Formula: C2H8P2O7
Molecular Weight: 206.03
Structural Formula
Properties
Appearance: liquid.
Solubility: soluble in water.
Stability: stable.
Risk: irritation, irritation to skin, eye.
Animal toxicity[1]: mouse oral LD50: 1800mg/Kg. reproductive effect.
Ecology: may be hazardous to environment. Water body should be given special attention.
Biodegradability: biodegradable.
Characteristics: excellent chelating, dispersing, anticorrosive, cleansing abilities.
Synthesis
 
Quality standards & test methods
item
physical and chemical indexes
test methods
actives*, %, ≥
90
 
*: should be marked on molecular weight.
Major Uses
Use as chelating agent.
Chelating agent in personal care products.
Chelating agent, scale inhibitor, corrosion inhibitor in water treatment.
Use as corrosion inhibitor.
Use as cleansing agent.
Manufacturers
 
References
[1]:http://toxnet.nlm.nih.gov/: 2809-21-4
Update: 20140330(1);

 

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