1-Hydroxyethylidene-1,1-diphosphonic acid

About This Item

Molecular Formula	C₂H₈O₇P₂
CAS Number	2809-21-4

FC-0198509

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Properties

Chemical Identifiers

IUPAC Name	(1-hydroxy-1-phosphonoethyl)phosphonic acid
SMILES	CC(O)(P(=O)(O)O)P(=O)(O)O

Physical Properties

Boiling Point	578.8±60.0 °C at 760 mmHg
Melting Point	198~199℃
Flash Point	303.8±32.9 °C
Density	2.1±0.1 g/cm3

Safety Information

Hazard Class

Danger

Flash Point

303.8±32.9 °C

Please refer to the Safety Data Sheet (SDS) for complete handling, storage, and disposal instructions. Follow all applicable regulations when working with this chemical reagent.