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Home> Encyclopedia > Hot Product Listed G   > Germanium
7440-56-4 structure

Germanium

CAS No.:7440-56-4
EINECS(EC#): 231-164-3
Molecular Weight:72.61
Names and Identifiers
Synonyms

Germaniumelement

Inchi
InChI=1/GeH4/h1H4
InChkey
GNPVGFCGXDBREM-UHFFFAOYSA-N
Properties
Appearance
greyish-white lustrous brittle solid, odourless
Density
5.35
Melting Point
937℃
Boiling Point
2830℃
Solubility
slightly soluble in strong acids
Stability
Stable. Slightly soluble in strong acids. Incompatible with strong oxidizing agents.
Storage temp
Flammables area
Safety and Handling
Hazard Codes
F; Xi
Risk Statements
R11;R36/38
Safety Statements
S2;S26
HazardClass
8
Safety
Hazard Codes:F,Xi
Risk Statements:36/37/38-36/38-11
36/37/38:Irritating to eyes, respiratory system and skin
36/38:Irritating to eyes and skin
11:Highly Flammable
Safety Statements:26-36/39-2
26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
36/39:Wear suitable protective clothing and eye/face protection
2:Keep out of the reach of children
RIDADR:UN 3089 4.1/PG 2
WGK Germany:3
HazardClass:8
PackingGroup:III
Hazardous Substances Data:7440-56-4(Hazardous Substances Data)
PackingGroup
III
Transport
UN 3089
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.

MSDS

2.Hazard identification

2.1 Classification of the substance or mixture

Not classified.

2.2 GHS label elements, including precautionary statements

Pictogram(s) No symbol.
Signal word

No signal word.

Hazard statement(s)

none

Precautionary statement(s)
Prevention

none

Response

none

Storage

none

Disposal

none

2.3 Other hazards which do not result in classification

none

Precursor and Product
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Recommended Suppliers
  • Tel:86-571-88938639
  • Fax:86-571-88938652
  • Tel:86-28-85880591
  • Fax:86-28-85880454
  • Tel:010-56205725;010-86181995
  • Fax:010-65763397
  • Tel:400-666-7788 +86-10-82848833
  • Fax:+86-10-82849933
  • Tel:+1-401-4337000
  • Fax:+1-401-433-7001
  • Tel:028-82000518 85141153
  • Fax:86-28-85194858
  • Tel:541.488.8311
  • Fax:541.488.8313
  • Tel:1-(800)-2424-SPI
  • Fax:1-(610)-436-5755
  • Tel:800 523 5874
  • Fax:215 646 8931
  • Tel:800 858-9682 +1-(740)-881-5989
  • Fax:740 881-5989 +1-(740)-881-5501, 877-534-0795
 
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