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Germanium (7440-56-4)

Identification
Name:Germanium
Synonyms:Germaniumelement;
CAS:7440-56-4
EINECS: 231-164-3
Molecular Formula: Ge
Molecular Weight: 72.61
InChI: InChI=1/GeH4/h1H4
Molecular Structure: (Ge) Germaniumelement;
Properties
Transport:UN 3089
Density:5.35
Stability:Stable. Slightly soluble in strong acids. Incompatible with strong oxidizing agents.
Water Solubility:slightly soluble in strong acids
Solubility:slightly soluble in strong acids
Appearance:greyish-white lustrous brittle solid, odourless
Specification:

The Germanium, with the cas registry number 7440-56-4, is a kind of greyish-white lustrous brittle solid with no odour. This chemical is stable and is slightly soluble in strong acids while incompatible with strong oxidizing agents. Besides, its product categories are including Germanium; Metal and Ceramic Science; Metals. When comes to its usage, it is usually applied in producing semiconductor devices.

The characteristics of this chemical are as follows: (1)#H bond acceptors: 0; (2)#H bond donors: 0; (3)#Freely Rotating Bonds: 0; (4)Polar Surface Area: 0; (5)Exact Mass: 73.921178; (6)MonoIsotopic Mass: 73.921178; (7)Heavy Atom Count: 1; (8)Covalently-Bonded Unit Count: 1.

When you are dealing with this chemical, you should be very cautious. For one thing, it is irritating to eyes, respiratory system and skin and may cause inflammation to the skin or other mucous membranes. For another thing, it is highly flammable which may catch fire in contact with air, only needing brief contact with an ignition source, and it has a very low flash point or evolve highly flammable gases in contact with water. Therefore, you should wear suitable protective clothing and eye/face protection and if in case of contact with eyes, rinse immediately with plenty of water and seek medical advice. Then remember to keep it out of the reach of children.

In addition, you could convert the following datas into the molecular structure:
(1)Canonical SMILES: [Ge]
(2)InChI: InChI=1S/Ge
(3)InChIKey: GNPVGFCGXDBREM-UHFFFAOYSA-N 
 
Below are the toxicity information of this chemical:

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
child TDLo oral 2gm/kg/78W-I (2000mg/kg) GASTROINTESTINAL: NAUSEA OR VOMITING

KIDNEY, URETER, AND BLADDER: "CHANGES IN TUBULES (INCLUDING ACUTE RENAL FAILURE, ACUTE TUBULAR NECROSIS)"

KIDNEY, URETER, AND BLADDER: CHANGES IN BOTH TUBULES AND GLOMERULI
Japanese Journal of Medicine. Vol. 30, Pg. 67, 1991.
 
man TDLo oral 58mg/kg/26W-I (58mg/kg) KIDNEY, URETER, AND BLADDER: "CHANGES IN TUBULES (INCLUDING ACUTE RENAL FAILURE, ACUTE TUBULAR NECROSIS)" Japanese Journal of Medicine. Vol. 30, Pg. 67, 1991.
 
man TDLo oral 786mg/kg/2Y-I (786mg/kg) GASTROINTESTINAL: NAUSEA OR VOMITING

KIDNEY, URETER, AND BLADDER: "CHANGES IN TUBULES (INCLUDING ACUTE RENAL FAILURE, ACUTE TUBULAR NECROSIS)"

BLOOD: OXIDANT RELATED (GPD DEFICIENT) ANEMIA
Japanese Journal of Medicine. Vol. 30, Pg. 67, 1991.
 
rat LCLo inhalation 3860mg/m3/4H (3860mg/m3) LUNGS, THORAX, OR RESPIRATION: OTHER CHANGES Food and Chemical Toxicology. Vol. 28, Pg. 571, 1990.
 

Report:

Reported in EPA TSCA Inventory.

Packinggroup: III
Storage Temperature: Flammables area
Safety Data
Hazard Symbols F:Flammable