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2809-21-4

2809-21-4 Structure

2809-21-4 Structure
IdentificationMore
[Name]

1-Hydroxyethylidene-1,1-diphosphonic acid
[CAS]

2809-21-4
[Synonyms]

(1-HYDROXY-1-PHOSPHONO-ETHYL)-PHOSPHONIC ACID
1-HYDROXYETHANE-1,1-BIS(PHOSPHONIC ACID)
1-HYDROXYETHANE-1,1-DIPHOSPHONIC ACID
1-HYDROXYETHYLIDENE-1
1-HYDROXYETHYLIDENE-1,1-DIPHOSPHONIC ACID
1-HYDROXYETHYLIDENEDIPHOSPHONIC ACID
DEQUEST 2010
ETHANE-1-HYDROXY-1,1-DIPHOSPHONIC ACID
ETIDRONIC ACID
HEDP
HEDPA
(1-hydroxyethylene)diphosphonicacid
(1-hydroxyethylidene)bis-phosphonicaci
(1-hydroxyethylidene)di-phosphonicaci
(hydroxyethylidene)diphosphonicacid
1,1,1-ethanetrioldiphosphonate
1000sl
1-hydroxy-1,1-diphosphonoethane
1-Hydroxyethanediphosphonica
1-hydroxyethanediphosphonicacid
[EINECS(EC#)]

220-552-8
[Molecular Formula]

C2H8O7P2
[MDL Number]

MFCD00070585
[Molecular Weight]

206.03
[MOL File]

2809-21-4.mol
Chemical PropertiesBack Directory
[Appearance]

light beige powder
[mp ]

198~199℃
[density ]

1.45 (60% aq.)
[Stability:]

Stable. Incompatible with strong oxidizing agents.
[Merck ]

14,3863
[CAS DataBase Reference]

2809-21-4(CAS DataBase Reference)
[EPA Substance Registry System]

2809-21-4(EPA Substance)
Safety DataBack Directory
[Hazard Codes ]

Xi
[Risk Statements ]

R37/38:Irritating to respiratory system and skin .
R41:Risk of serious damage to eyes.
[Safety Statements ]

S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S39:Wear eye/face protection .
[RIDADR ]

UN 3265
[WGK Germany ]

2
[RTECS ]

SZ8562100
[F ]

10
[HazardClass ]

8
[PackingGroup ]

II
[HS Code ]

29319099
[Hazardous Substances Data]

2809-21-4(Hazardous Substances Data)
Raw materials And Preparation ProductsBack Directory
【Raw materials】

Hydrochloric acid-->Acetic acid-->Phosphorus trichloride-->Diethylenetriamine
【Preparation Products】

efficient complex formulationof corrosion and scale control-->NS series corrision and scale inhibitors-->scale inhibitor and sipersant TS-104-->(1-Hydroxyethylidene)bis-phosphonic acid tetrasodium salt
Well-known Reagent Company Product InformationBack Directory
[Alfa Aesar]

1-Hydroxyethylidenebis(phosphonic acid), 96%(2809-21-4)
[Sigma Aldrich]

2809-21-4(sigmaaldrich)
[TCI AMERICA]

1-Hydroxyethane-1,1-diphosphonic Acid  (ca. 60% in Water, ca. 4.2mol/L)(2809-21-4)
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