Germanium
Also known as: Cermanium powder, EINECS 231-164-3, GERMANIUM METAL, GERMANIUM, 99.9999%, GERMANIUM:, Germanium pieces, Germanium pieces, 2cm (0.8in) & down, 99.9999% (metals basis), Germanium pieces, 2cm (0.8in) & down, Puratronic(R), 99.9999+% (metals basis), Germanium sludge, Germanium, AAS standard solution, Specpure(R), Ge 1000μg/ml, Germanium, Pieces 3-9mm, Germanium, Powder 10 Mesh, Germanium, plasma standard solution, Specpure(R), Ge 1000μg/ml, MFCD00085310, germane, germanium atom, germaniumelement
Germanium (CAS 7440-56-4) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula Ge and a molecular weight of 72.640 g/mol. Key properties include a melting point of 937 °C(lit.), a boiling point of 2830 °C(lit.) and a density of 5.35 g/mL at 25 °C(lit.). It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. It is listed by 1 supplier; request a quote for pricing. Record last updated Aug 21, 2026.
- CAS No.
- 7440-56-4
- Jingsj CID
- J-1325462-3
- Molecular Formula
- Ge
- Molecular Weight
- 72.640 g/mol
- Category
- Inorganic Chemicals
- Last updated
- 8/21/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
Made to Order | - | - | CN China |
Physicochemical Properties
| Melting Point | 937 °C(lit.) |
|---|---|
| Boiling Point | 2830 °C(lit.) |
| Density | 5.35 g/mL at 25 °C(lit.) |
| Exact Mass | 73.921181 |
| LogP | 0.06920 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Frequently Asked Questions
What is the CAS number of Germanium?
The CAS number of Germanium is 7440-56-4.
What are the molecular formula and molecular weight of Germanium?
Germanium has molecular formula Ge and molecular weight 72.640 g/mol.
Which suppliers offer Germanium?
1 supplier(s) listed; request a quote for pricing.
Is Germanium hazardous?
Germanium has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of Germanium?
For Germanium, Upstream Products: Germanium chloride, germane, λ3-germane; Downstream Products: Germanium tetraiodide, Bromotriphenylgermane, Trichloro(methyl)germane.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Germanium (CAS 7440-56-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1325462-3 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.