PRODUCT Properties
| Melting point: | 931 °C (lit.) |
| Boiling point: | 3520 °C (lit.) |
| Density | 6.71 g/mL at 25 °C (lit.) |
| storage temp. | Flammables area |
| form | powder |
| color | White |
| Specific Gravity | 6.782 |
| Resistivity | 68 μΩ-cm, 20°C |
| Water Solubility | Reacts with water. |
| Sensitive | Air & Moisture Sensitive |
| Merck | 13,7797 |
| Exposure limits | ACGIH: TWA 2 ppm; STEL 4 ppm OSHA: TWA 2 ppm(5 mg/m3) NIOSH: IDLH 25 ppm; TWA 2 ppm(5 mg/m3); STEL 4 ppm(10 mg/m3) |
Description and Uses
Praseodymium optical properties for use in amplification of telecommunication systems, including as a doping agent in fluoride fibers. It is also used in the scintillator for medical CAT scans. Used as additive for special steel, non-ferric alloy, hydrogen storage alloy, also reducer for making other rare Earth metal.
Safety
| Symbol(GHS) |   GHS02,GHS07 |
| Signal word | Danger |
| Hazard statements | H250-H315-H319-H413 |
| Precautionary statements | P210-P231+P232-P273-P302+P352-P305+P351+P338-P370+P378 |
| Hazard Codes | F,C |
| Risk Statements | 17-11-34 |
| Safety Statements | 17-7/9-33-16-45-36/37/39-27-26-23 |
| RIDADR | UN 3208 4.3/PG 1 |
| WGK Germany | 3 |
| F | 1-10 |
| TSCA | Yes |
| HazardClass | 8 |
| PackingGroup | III |
| HS Code | 28053090 |
![Tris(2,2,6,6-tetramethyl-3,5-heptanedionato)praseodymium(III) [NMR Shift Reagent]](https://img.chemicalbook.com/CAS/GIF/15492-48-5.gif)