Lithium hydride , 97% , 7580-67-8
Synonym(s):
Lithium hydride
CAS NO.：7580-67-8
Empirical Formula: HLi
Molecular Weight: 7.95
MDL number: MFCD00011074
EINECS: 231-484-3
PRODUCT Properties
| Melting point: | 680 °C(lit.) |
| bulk density | 290-430kg/m3 |
| Density | 0.82 g/mL at 25 °C(lit.) |
| Flash point: | 20.00°C |
| storage temp. | Store below +30°C. |
| solubility | Slightly soluble in dimethylformamide. Insoluble in acetone, benzene and toluene. |
| form | powder |
| color | White to gray |
| PH | >7 (21g/l, H2O, 20℃) |
| Odor | odorless |
| Water Solubility | reacts |
| Sensitive | Air & Moisture Sensitive |
| Merck | 14,5533 |
| Exposure limits | TLV-TWA 0.025 mg/m3 (ACGIH). |
| InChI | InChI=1S/Li.H |
| InChIKey | SIAPCJWMELPYOE-UHFFFAOYSA-N |
| SMILES | [LiH] |
| CAS DataBase Reference | 7580-67-8(CAS DataBase Reference) |
| NIST Chemistry Reference | Lithium hydride(7580-67-8) |
| EPA Substance Registry System | Lithium hydride (7580-67-8) |
Description and Uses
Lithium hydride is an off-white to grayish,translucent, odorless solid or white powder that darkens rapidly on exposure to light. Molecular weight = 7.95; Specificgravity (H2O:1)=0.78; Boiling point = 850℃ (decomposesbelow BP); Freezing/Melting point = 689℃; Autoignitiontemperature = 200℃. Hazard Identification (based onNFPA-704 M Rating System): Health 3, Flammability 4,Reactivity 2. A combustible solid that can form airbornedust clouds which may explode on contact with flame, heat,or oxidizers.
Lithium hydride is a bluish-white crystal that is flammable in moisture. Used as a source of hydrogen gas that is liberated when LiH becomes wet. LiH is an excellent desiccant and reducing agent as well as a shield that protects from radiation created by nuclear reactions.
Safety
| Symbol(GHS) |    GHS02,GHS05,GHS06 |
| Signal word | Danger |
| Hazard statements | H260-H301-H314 |
| Precautionary statements | P223-P231+P232-P280-P301+P310-P370+P378-P422 |
| Hazard Codes | F,C,T |
| Risk Statements | 14-34-25-14/15 |
| Safety Statements | 16-26-27-36/37/39-7/8-45-25 |
| OEB | D |
| OEL | TWA: 0.025 mg/m3 |
| RIDADR | UN 1414 4.3/PG 1 |
| WGK Germany | 2 |
| RTECS | OJ6300000 |
| F | 10 |
| TSCA | Yes |
| HazardClass | 4.3 |
| PackingGroup | I |
| HS Code | 28500090 |
| Hazardous Substances Data | 7580-67-8(Hazardous Substances Data) |
| Toxicity | LD50 orally in Rabbit: 78 mg/kg |
| IDLA | 0.5 mg/m3 |
