SynonymEthane-1-hydroxy-1,1-diphosphonic acid, tetrasodium salt, (1-Hydroxyethylidene) bisphosphonic acid, tetrasodium salt, (1-Hydroxyethylidene) diphosphonic acid, tetrasodium salt, 1-Hydroxyethylidene-1,1-diphosphonic acid, tetrasodium salt, Na4HEDP Phosphonic acid, (1-hydroxyethylidene) bis-, tetrasodium salt, Tetrasodium 1-hydroxyethane-1,1-diphosphonate, Tetrasodium (1-hydroxyethylidene) bisphosphonate, Tetrasodium 1-hydroxyethylidene-1,1-diphosphonate, Phosphonic acid, P,P'-(1-hydroxyethylidene)bis-, sodium salt (1:4), Tetrasodium(1-hydroxyethylidene)bisphosphonate
Active Content~59%
Density, gm/cc, 20ยฐC~0.9
pH (1%)~11.5
AppearenceWhite granules
Iron, ppm5.0 max
pH10-12
Melting Point-5 c
Molecular weight293.96
Specific gravity1.30-1.35