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Germanium · CAS 7440-56-4 · Ge. UNII 00072J7XWS. Boiling Point: 2700 °C; Boiling Point: 2833 °C @760 [mm Hg]; Melting Point: 937.2 °C.
| CAS Registry Number | 7440-56-4 |
|---|---|
| PubChem CID | 6326954 |
| Molecular formula | Ge |
| IUPAC name | germanium |
| UNII (FDA) | 00072J7XWS |
| Molecular Weight | 72.63 |
|---|---|
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 0 |
| Rotatable Bond Count | 0 |
| Exact Mass | 73.9211778 |
| Monoisotopic Mass | 73.9211778 |
| Topological Polar Surface Area | 0 |
| Heavy Atom Count | 1 |
| Formal Charge | 0 |
| Complexity | 0 |
| Boiling Point | 2700 °C |
|---|---|
| Boiling Point | 2833 °C @760 [mm Hg] |
| Melting Point | 937.2 °C |
| Density | 5.323 @ 25 °C/4 °C |
| Density | 5.323 @25 °C |
| Vapor Pressure | 0 mm Hg @ 25 °C |
| Heat of Combustion | 7380 J/g |
| Surface Tension | 6X10-1 N/m @ 1673.1 K |
| Regulatory & Food Contact | FDA Cumulative Estimated Daily Intake (CEDI): FCS |
|---|---|
| GHS notification summary | 58.3% (186 / 319) |
| GHS notification summary | 58.3% (186 / 319) |
|---|---|
| Reported hazard statements | H228 (13.5%), H361 (27.3%), H373 (27.3%), H412 (27%) |
This chemical does not meet GHS hazard criteria for 58.3% (186 of 319) of all reports.
H228 (13.5%): Flammable solid [Danger Flammable solids]
GERMANIUM; 7440-56-4; Germanium element; Germanium, metal powder; DTXSID8052483; 00072J7XWS; GERMANIUM METALLICUM; CHEBI:30441; RefChem:57049; DTXCID5031056; 231-164-3; Germanium powder; germanium atom; germanium(2+); 13572-99-1; MFCD00011028
CAS 7440-56-4; molecular formula Ge; molecular weight — g/mol.
GERMANIUM, 7440-56-4, Germanium element, Germanium, metal powder, DTXSID8052483, 00072J7XWS.
Documented regulatory listings: FDA Cumulative Estimated Daily Intake (CEDI): FCS.
58.3% of GHS notifications report no hazard classification (186 of 319).
Boiling Point: 2700 °C; Boiling Point: 2833 °C @760 [mm Hg]; Melting Point: 937.2 °C; Density: 5.323 @ 25 °C/4 °C.
Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.
Store in a cool, dry, well-ventilated place away from heat, direct sunlight and incompatible materials. Keep container tightly closed. Use appropriate personal protective equipment and refer to the SDS for full safety guidance before handling.
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