Description
1-Hydroxyethylidene-1,1-diphosphonic acid Chemical Properties
| Melting point | 198~199℃ |
| Boiling point | 578.8±60.0 °C(Predicted) |
| density | 1.45 (60% aq.) |
| vapor pressure | 0Pa at 25℃ |
| storage temp. | Sealed in dry,Room Temperature |
| solubility | Methanol (Slightly), Water (Slightly) |
| form | Powder |
| pka | 1.35, 2.87, 7.03, 11.3(at 25℃) |
| color | white |
| PH | pH (1.7→100, 25℃) : 1.3～1.8 |
| Water Solubility | Soluble in water. |
| Merck | 14,3863 |
| BRN | 1789291 |
| Stability: | Stable. Incompatible with strong oxidizing agents. |
| InChIKey | DBVJJBKOTRCVKF-UHFFFAOYSA-N |
| LogP | -3.5 |
| CAS DataBase Reference | 2809-21-4(CAS DataBase Reference) |
| EPA Substance Registry System | Etidronic acid (2809-21-4) |
Safety Information
| Hazard Codes | Xi,Xn |
| Risk Statements | 37/38-41-22 |
| Safety Statements | 26-39 |
| RIDADR | UN 3265 |
| WGK Germany | 2 |
| RTECS | SZ8562100 |
| F | 10 |
| TSCA | Yes |
| HazardClass | 8 |
| PackingGroup | II |
| HS Code | 29319090 |
| Hazardous Substances Data | 2809-21-4(Hazardous Substances Data) |
| Toxicity | LD50 oral in mouse: 1800mg/kg |
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