Sodium hydride , 60%dispersioninmineraloil , 7646-69-7
Synonym(s):
Sodium hydride suspension
CAS NO.：7646-69-7
Empirical Formula: HNa
Molecular Weight: 24
MDL number: MFCD00003471
EINECS: 231-587-3
PRODUCT Properties
| Melting point: | 800 °C (dec.) (lit.) |
| Density | 1.2 |
| Flash point: | 185°C |
| storage temp. | Store below +30°C. |
| solubility | Soluble in molten sodium. Insoluble in ammonia, benzene,carbon tetrachloride, carbon disulfide and all organic solvents. |
| form | powder (moistened with oil) |
| color | White to pale gray |
| Water Solubility | REACTS |
| Sensitive | Air & Moisture Sensitive |
| Merck | 14,8625 |
| Exposure limits | ACGIH: TWA 5 mg/m3 OSHA: TWA 5 mg/m3 NIOSH: IDLH 2500 mg/m3; TWA 5 mg/m3; STEL 10 mg/m3 |
| CAS DataBase Reference | 7646-69-7(CAS DataBase Reference) |
| NIST Chemistry Reference | Sodium hydride(7646-69-7) |
| EPA Substance Registry System | Sodium hydride (NaH) (7646-69-7) |
Description and Uses
Sodium hydride, is a binary salt that has a specific hazard of releasing hydrogen upon contact with water. It is an odorless powder that is violently water reactive. The four-digit UN identification number is 1427. The NFPA 704 designation is health 3, flammability 3, and reactivity 2. The white space at the bottom of the diamond has a W with a slash through it, indicating water reactivity.
At low temperatures where reducing properties of sodium are undesirable as in the condensation of ketones and aldehydes with acid esters; in solution with molten sodium hydroxide for the reduction of oxide scale on metals; at high temperatures as a reducing agent and reduction catalyst.
Safety
| Symbol(GHS) |   GHS02,GHS05 |
| Signal word | Danger |
| Hazard statements | H228-H260-H290-H314 |
| Precautionary statements | P210-P231+P232-P260-P280-P303+P361+P353-P305+P351+P338 |
| Hazard Codes | F,C |
| Risk Statements | 15-36-35-11 |
| Safety Statements | 26-43-7/8-43A-24/25-7-60-22-45-37/39-16 |
| RIDADR | UN 1427 4.3/PG 1 |
| WGK Germany | 3 |
| RTECS | WB3910000 |
| F | 10-21 |
| TSCA | Yes |
| HazardClass | 4.3 |
| PackingGroup | I |
| HS Code | 28500090 |
| Hazardous Substances Data | 7646-69-7(Hazardous Substances Data) |
