Strontium nitrate , 99.5% , 10042-76-9
Synonym(s):
Strontium nitrate
CAS NO.：10042-76-9
Empirical Formula: N2O6Sr
Molecular Weight: 211.63
MDL number: MFCD00011248
EINECS: 233-131-9
PRODUCT Properties
| Melting point: | 570 °C (lit.) |
| Boiling point: | 645 °C |
| Density | 2.99 |
| storage temp. | Store at +5°C to +30°C. |
| solubility | 660g/l |
| form | Solid |
| color | White |
| Specific Gravity | 2.99 |
| Odor | Odorless |
| PH Range | 5.0 - 7.0 |
| PH | 5-7 (50g/l, H2O, 20℃) |
| Water Solubility | 660 g/L (20 ºC) |
| Sensitive | Hygroscopic |
| Merck | 14,8845 |
| Stability: | Strong oxidizer - contact with combustible material may cause fire. Incompatible with strong reducing agents, combustible material. |
| InChIKey | DHEQXMRUPNDRPG-UHFFFAOYSA-N |
| CAS DataBase Reference | 10042-76-9(CAS DataBase Reference) |
| EPA Substance Registry System | Strontium nitrate (10042-76-9) |
Description and Uses
Strontium nitrate has the molecular formula of
Sr(NO3)2 and the molecular weight of 211.6327 g/mol.
Strontium nitrate is prepared by treating strontium
carbonate with nitric acid. The solution is evaporated
and crystallized:
SrCO3 +HNO3 ? Sr(NO3)2 + CO2 +H2O
Crystallization yields the tetrahydrate, Sr(NO3)2·
4H2O, which, on heating, melts at 31.3 °C in its own
waters of hydration and then decomposes >100 °C to
form the anhydrous nitrate. The anhydrate melts at
570 °C (It begins to decompose as low as 545 °C), is
soluble in water (70.3 gm/100 ml at 20 °C) and is
very slightly soluble in ethanol. These colorless crystals,
or white powder, have a density of 2.986 g/cm3
and its CAS number is 10042-76-9. It is very soluble
in water, as shown in Table 4.11 on the following page. Strontium nitrate apparently forms only the tetrahydrate
when a solution is evaporated below 80°C.
Otherwise it decomposes at higher solution temperatures
to Sr(OH)2 and nitrogen oxides. The nitric acid
concentration makes little difference in the hydrate
produced, in contrast to other alkaline earths like Ca
and Mg.
Used in preparation of strontium standard solutions
Safety
| Symbol(GHS) |   GHS03,GHS05 |
| Signal word | Danger |
| Hazard statements | H271-H318 |
| Precautionary statements | P210-P220-P280-P283-P305+P351+P338-P306+P360 |
| Hazard Codes | O,Xi,Xn |
| Risk Statements | 8-36/37/38-22 |
| Safety Statements | 17-26-36/37/39-36 |
| RIDADR | UN 1507 5.1/PG 3 |
| WGK Germany | 2 |
| RTECS | WK9800000 |
| TSCA | Yes |
| HazardClass | 5.1 |
| PackingGroup | III |
| HS Code | 28342980 |
| Hazardous Substances Data | 10042-76-9(Hazardous Substances Data) |
| Toxicity | LD50 i.p. in rats: 540 mg/kg, Cochran et al., Arch. Ind. Hyg. 1, 637 (1950) |
