Calcium hypophosphite , AR，≥98.0%(RT) , 7789-79-9
CAS NO.：7789-79-9
Empirical Formula: Ca(H2PO2)2
Molecular Weight: 170.05
MDL number: MFCD00867083
EINECS: 232-190-8
| Pack Size | Price | Stock | Quantity |
| 500G | RMB90.40 | In Stock |
|
| 2.5KG | RMB348.00 | In Stock |
|
| 20×500g | RMB1591.20 | In Stock |
|
| others | Enquire |
PRODUCT Properties
| Melting point: | decomposes [ALF93] |
| Boiling point: | 480℃[at 101 325 Pa] |
| Density | 2.243[at 20℃] |
| solubility | soluble in H2O; insoluble in ethanol |
| form | white monoclinic crystals |
| pka | 12.6[at 20 ℃] |
| color | white monoclinic crystals, crystalline |
| Water Solubility | Soluble in water. Practically insoluble in alcohol. Slightly soluble in glycerol |
| Sensitive | Hygroscopic |
| Merck | 14,1675 |
| InChIKey | XJPMAXXEWYLDCQ-UHFFFAOYSA-L |
| CAS DataBase Reference | 7789-79-9(CAS DataBase Reference) |
| EPA Substance Registry System | Calcium hypophosphite (7789-79-9) |
Description and Uses
Calcium hypophosphite has the molecular formula
of Ca(H2PO2)2 and the molecular weight of
170.0631 g/mol. This salt can be prepared by the
aqueous reaction of the carbonate or oxide with H3PO2:
CaO + 2H3PO2 ? Ca(H2PO2)2
The salt is soluble in water (20 g/100 ml at 20°C) so
that the solution must be evaporated to obtain crystals.
Ca(H2PO2)2 has the CAS number of 7789-79-9 and the
density of 1.59 g/cm3. It is composed of white square
monoclinic crystalswhich are water soluble. It is insoluble
in alcohol or ether.When heated to about 305°C, it disproportionates,
forming calcium phosphate and phosphine:
Ca(H2PO2)2 + heat ? CaHPO3 + PH3
As corrosion inhibitor; in nickel plating. Pharmaceutic aid (retards oxidation of ferrous salts).
Safety
| Symbol(GHS) |  GHS02 |
| Signal word | Danger |
| Hazard statements | H228 |
| Precautionary statements | P240-P241-P280-P370+P378a-P210 |
| Hazard Codes | F |
| Risk Statements | 11 |
| Safety Statements | 7-15 |
| RIDADR | UN 3180 4.1/PG 2 |
| WGK Germany | 3 |
| TSCA | Yes |
| HazardClass | 4.1 |
| Hazardous Substances Data | 7789-79-9(Hazardous Substances Data) |
