7440-56-4
4 Inquiries
7440-56-4
kg
2023-07-09
Custom Synthetic Chemicals,Biological Stains,Pharmaceutical Intermediates,Cosmetic Grade Chemicals,Enzyme,Nucleosides
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Product Description
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Seller Information
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Inquiry History
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DescriptionBasic Info
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Product Name:
Germanium
Other Name:Germanium;Germanium element;129827-75-4
CAS No.:7440-56-4
Molecular Formula:Ge
InChIKeys:InChIKey=GNPVGFCGXDBREM-UHFFFAOYSA-N
Molecular Weight:72.64
Exact Mass:73.921181
EC Number:231-164-3
UNII:619P6J82AE|00072J7XWS
DSSTox ID:DTXSID8052483|DTXSID30422913
NCI Thesaurus Code:C95170
Color/Form:GRAYISH-WHITE, LUSTROUS, BRITTLE METALLOID; DIAMOND-CUBIC STRUCTURE WHEN CRYSTALLINE
HScode:28053090
Categories:
Characteristics-
PSA:
0
XLogP3:0.06920
Appearance:Silver powder
Density:5.323 g/cm3 @ Temp: 25 °C
Melting Point:937.2 °C
Boiling Point:2700 °C
Refractive Index:IS HIGHLY TRANSPARENT TO INFRARED LIGHT; HAS A HIGH INDEX OF REFRACTION
Water Solubility:insoluble H2O, HCl, dilute alkali hydroxides; attacked by aqua regia [MER06]
Storage Conditions:Flammables area
Vapor Pressure:0 mm Hg @ 25 deg C
Explosive limit:MANY...CAN IGNITE SPONTANEOUSLY & EXPLODE WHEN SUSPENDED IN AIR. /POWDERED METALS/
Experimental Properties:THERMAL EXPANSION COEFFICIENT AT APPROX 25 °C: 6.1X10-6 °C; THERMAL CONDUCTIVITY @ 25 °C: 0.14 CAL/SEC CM/DEG C; SPECIFIC HEAT (0-100 °C): 0.074 CAL/G/DEG C|COVALENT BOND IONIZATION ENERGY @ 0 DEG K= 1.2 ELECTRON VOLT; BAND GAP: 0.67 ELECTRON VOLT; ATOMS/CC= 4.42X10+22; IMPURITY ATOM IONIZATION ENERGY: APPROX 0.01 ELECTRON VOLT; INTRINSIC RESISTIVITY @ 300 DEG K= 47 OHM-CM|ELECTRON MOBILITY @ 300 DEG K: 3900 SQ CM/V SEC; HOLE MOBILITY @ 300 DEG K= 1900 CM/V SEC; HOLE DIFFUSION CONSTANT @ 300 DEG K= 49|For more Other Experimental Properties (Complete) data for GERMANIUM (9 total), please visit the HSDB record page.
Heat of Combustion:7380 J/g
Heat of Vaporization:3.5733X10+8 J/kmol @ melting point
Critical Temperature & Pressure:Critical temperature: 9803 K; critical pressure 6.511X10+8 Pa
Hazard IdentificationClassification of the substance or mixture
Reproductive toxicity, Category 2
Specific target organ toxicity â repeated exposure, Category 2
Hazardous to the aquatic environment, short-term (Acute) - Category Acute 1
Hazardous to the aquatic environment, long-term (Chronic) - Category Chronic 2
GHS label elements, including precautionary statements
Pictogram(s) 
Signal word Warning
Hazard statement(s) H361 Suspected of damaging fertility or the unborn child
H373 May cause damage to organs through prolonged or repeated exposure
H400 Very toxic to aquatic life
H411 Toxic to aquatic life with long lasting effects
Precautionary statement(s) Prevention P203 Obtain, read and follow all safety instructions before use.
P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P273 Avoid release to the environment.
Response P318 IF exposed or concerned, get medical advice.
P319 Get medical help if you feel unwell.
P391 Collect spillage.
Storage P405 Store locked up.
Disposal P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.
Other hazards which do not result in classification
no data available
Handling and StoragePrecautions for safe handling
Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.
Conditions for safe storage, including any incompatibilities
Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.
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Seller Information
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Business Type:
Manufactory
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Main Products:
Custom Synthetic Chemicals,Biological Stains,Pharmaceutical Intermediates,Cosmetic Grade Chemicals,Enzyme,Nucleosides
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Location:
Room 308-80, building 1, 1963 Huaguan Road, Tianhe District, Guangzhou
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Payment Terms:
TT against copy of documents,D/P,L/C,D/A,O/A,100% TT in advance
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Average lead Time:
30
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Total Annual Revenue:
$5 million-$10 million
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Total Employees:
51-100
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Year of Establishment:
2021
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Inquiry History4 Inquiries
Country Product Purchase Quantity Date Posted 
Spain
Germanium
50 KG Apr 14, 2026 
Malaysia
Germanium Dioxide additive
0.5 MT Feb 28, 2024 
Kazakstan
Germanium Monocrystalline
10 KG Feb 3, 2026 
India
Germanium
2.00 KG Oct 22, 2025 Post an enquiry for this product
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