Germanium polycrystalline, 99.999%

Name: Germanium polycrystalline, 99.999%
Brand: Vaqora Chemicals
SKU: VQ-016780

About Germanium polycrystalline, 99.999%

Germanium polycrystalline is a high-purity metal carrying the CAS registry number 7440-56-4, specified at 99.999% purity. Formula Ge, molecular weight 72.63 g/mol. Its systematic (IUPAC) name is germanium. Common synonyms include Germanium 5N.

The material typically appears as lumps or pieces or granules. Literature values give a melting point of 937 °C and a boiling point of 2830 °C. Store in a tightly closed container in a cool, dry and well-ventilated place. It carries the GHS signal word “Danger” with 4 hazard statements. Review the Safety Data Sheet before use.

Key uses span alloy preparation, evaporation sources, materials research and optics and photonics. Buyers come mainly from academic and industrial research and metallurgy and mining.

Vaqora Chemicals supplies Germanium polycrystalline in 1 g, 5 g, 10 g and 100 g packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Alloy preparation
Evaporation sources
Materials research
Optics & photonics

Industries

Specifications & identifiers

Chemical identifiers
Product name	Germanium polycrystalline, 99.999%
Catalogue No.	VQ-016780
CAS Number	7440-56-4
IUPAC name	germanium
Molecular formula	Ge
Molecular weight	72.63 g/mol
Exact mass	73.9212
Purity / assay	99.999%
HSN code	81129200
InChIKey	GNPVGFCGXDBREM-UHFFFAOYSA-N
SMILES	[Ge]
PubChem CID	6326954

Physical properties
Physical form	Granules
Appearance	Lumps or pieces or granules
Melting point	937 °C
Boiling point	2830 °C
Density	5.35 g/mL at 25 °C
H-bond donors / acceptors	0 / 0
TPSA	0 Å²

Safety & hazard information (GHS)

Flammable

Health hazard

Signal word: Danger

Hazard statements

H228Flammable solid
H361Suspected of damaging fertility or the unborn child
H373May causes damage to organs through prolonged or repeated exposure
H412Harmful to aquatic life with long lasting effects

Precautionary statements: P203, P210, P240, P241, P260, P273, P280, P318, P319, P370 + P378, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Other grades of CAS 7440-56-4

Germanium ingot, 99.9999%

CAS: 7440-56-4
Formula: Ge
MW: 72.63 g/mol

VQ-016774

Germanium lump, 99.999%

CAS: 7440-56-4
Formula: Ge
MW: 72.63 g/mol

VQ-016775

Germanium optical (mono crystalline) windows, 100 mm dia, 20 mm thick, 99.999%

CAS: 7440-56-4
Formula: Ge
MW: 72.63 g/mol

VQ-018024

Germanium optical (mono crystalline) windows, 25 mm dia, 10 mm thick, 99.999%

CAS: 7440-56-4
Formula: Ge
MW: 72.63 g/mol

VQ-018025

Germanium optical (mono crystalline) windows, 35 mm dia, 15 mm thick, 99.999%

CAS: 7440-56-4
Formula: Ge
MW: 72.63 g/mol

VQ-018026

Germanium optical (mono crystalline) windows, 50 mm dia, 10 mm thick, 99.999%

CAS: 7440-56-4
Formula: Ge
MW: 72.63 g/mol

VQ-018027

Germanium optical (mono crystalline) windows, 95 mm dia, 20 mm thick, 99.999%

CAS: 7440-56-4
Formula: Ge
MW: 72.63 g/mol

VQ-018028

Germanium optical windows, 140 mm dia, 30 mm thick, 99.999%

CAS: 7440-56-4
Formula: Ge
MW: 72.63 g/mol

VQ-018029

All 20 products with CAS 7440-56-4 →

Frequently asked questions

What is the CAS number of Germanium polycrystalline, 99.999%?

The CAS Registry Number of Germanium polycrystalline, 99.999% is 7440-56-4. It is also known as Germanium 5N.

What is the molecular formula and molecular weight of Germanium polycrystalline, 99.999%?

Germanium polycrystalline, 99.999% has the molecular formula Ge and a molecular weight of 72.63 g/mol. Its IUPAC name is germanium.

Which grade and pack sizes of Germanium polycrystalline, 99.999% can I order?

We supply Germanium polycrystalline, 99.999% in (99.999%) grade, in 1 g, 5 g, 10 g, 100 g, 5 x 1 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Germanium polycrystalline, 99.999%?

Yes. Every lot of Germanium polycrystalline, 99.999% is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Germanium polycrystalline, 99.999% be shipped internationally?

Yes. Germanium polycrystalline, 99.999% is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.