Germanium

Modify Date: 2025-08-20 18:35:22

Germanium structure	Common Name	Germanium
	CAS Number	7440-56-4	Molecular Weight	72.640
	Density	5.35 g/mL at 25 °C(lit.)	Boiling Point	2830 °C(lit.)
	Molecular Formula	Ge	Melting Point	937 °C(lit.)
	MSDS	Chinese USA	Flash Point	N/A
	Symbol	GHS07	Signal Word	Warning

Name	germane
Synonym	More Synonyms

Density	5.35 g/mL at 25 °C(lit.)
Boiling Point	2830 °C(lit.)
Melting Point	937 °C(lit.)
Molecular Formula	Ge
Molecular Weight	72.640
Exact Mass	73.921181
LogP	0.06920
Storage condition	Flammables area
Stability	Stable. Slightly soluble in strong acids. Incompatible with strong oxidizing agents.

Germanium MSDS(Chinese)

CHEMICAL IDENTIFICATION

RTECS NUMBER :: LY5200000

CHEMICAL NAME :: Germanium, metal powder

CAS REGISTRY NUMBER :: 7440-56-4

LAST UPDATED :: 199701

DATA ITEMS CITED :: 9

MOLECULAR FORMULA :: Ge

MOLECULAR WEIGHT :: 72.59

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Human - man

DOSE/DURATION :: 58 mg/kg/26W-I

TOXIC EFFECTS :: Kidney, Ureter, Bladder - changes in tubules (including acute renal failure, acute tubular necrosis)

REFERENCE :: JJMDAT Japanese Journal of Medicine. (Nankodo Co., Ltd., POB 5272, Tokyo International 100-31, Japan) V.1-30, 1962-1991. For publisher information, see IEDIEP. Volume(issue)/page/year: 30,67,1991

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Human - child

DOSE/DURATION :: 2 gm/kg/78W-I

TOXIC EFFECTS :: Gastrointestinal - nausea or vomiting Kidney, Ureter, Bladder - changes in tubules (including acute renal failure, acute tubular necrosis) Kidney, Ureter, Bladder - changes in both tubules and glomeruli

REFERENCE :: JJMDAT Japanese Journal of Medicine. (Nankodo Co., Ltd., POB 5272, Tokyo International 100-31, Japan) V.1-30, 1962-1991. For publisher information, see IEDIEP. Volume(issue)/page/year: 30,67,1991

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Human - man

DOSE/DURATION :: 786 mg/kg/2Y-I

TOXIC EFFECTS :: Gastrointestinal - nausea or vomiting Kidney, Ureter, Bladder - changes in tubules (including acute renal failure, acute tubular necrosis) Blood - oxidant related (GPD deficient) anemia

REFERENCE :: JJMDAT Japanese Journal of Medicine. (Nankodo Co., Ltd., POB 5272, Tokyo International 100-31, Japan) V.1-30, 1962-1991. For publisher information, see IEDIEP. Volume(issue)/page/year: 30,67,1991

TYPE OF TEST :: LCLo - Lowest published lethal concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 3860 mg/m3/4H

TOXIC EFFECTS :: Lungs, Thorax, or Respiration - other changes

REFERENCE :: FCTOD7 Food and Chemical Toxicology. (Pergamon Press Inc., Maxwell House, Fairview Park, Elmsford, NY 10523) V.20- 1982- Volume(issue)/page/year: 28,571,1990 ** OTHER MULTIPLE DOSE TOXICITY DATA **

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 250 mg/m3/6H/4W-I

TOXIC EFFECTS :: Lungs, Thorax, or Respiration - changes in lung weight Kidney, Ureter, Bladder - urine volume increased Blood - other changes

REFERENCE :: FCTOD7 Food and Chemical Toxicology. (Pergamon Press Inc., Maxwell House, Fairview Park, Elmsford, NY 10523) V.20- 1982- Volume(issue)/page/year: 28,571,1990 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-RUSSIA:STEL 2 mg/m3 JAN 1993 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 34770 No. of Facilities: 56 (estimated) No. of Industries: 2 No. of Occupations: 3 No. of Employees: 307 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 34770 No. of Facilities: 16 (estimated) No. of Industries: 2 No. of Occupations: 7 No. of Employees: 1914 (estimated) No. of Female Employees: 279 (estimated)

Symbol	GHS07
Signal Word	Warning
Hazard Statements	H315-H319-H335
Precautionary Statements	P261-P305 + P351 + P338
Personal Protective Equipment	dust mask type N95 (US);Eyeshields;Gloves
Hazard Codes	F:Flammable;Xi:Irritant
Risk Phrases	R11;R36/38
Safety Phrases	S26-S36/39-S2
RIDADR	UN 3089 4.1/PG 2
WGK Germany	3
RTECS	LY5200000
Packaging Group	III
Hazard Class	8

Precursor 9
CAS#:10038-98-9 Germanium chloride CAS#:7782-65-2 germane CAS#:73274-06-3 bis(pentamethyl... CAS#:15230-48-5 dichlorogermane
CAS#:13818-89-8 λ3-germane CAS#:1675-58-7 diphenylgermane CAS#:13637-65-5 chlorogermane CAS#:334719-93-6 Ge(CH{(CH3)CN-2...
CAS#:7440-09-7 Potassium
DownStream 9
CAS#:13450-95-8 Germanium tetra... CAS#:1184-77-6 diiodo(dimethyl... CAS#:1111-91-7 Triiodo(methyl)... CAS#:35369-95-0 tribromo-(2,3,4...
CAS#:10177-65-8 dibromo-bis(2,3... CAS#:10360-39-1 tris(pentafluor... CAS#:3005-32-1 Triphenylgerman... CAS#:1080-42-8 Germane,dibromo...
CAS#:993-10-2 Methylgermanium...

Modification of the cellulosic component of hemp fibers using sulfonic acid derivatives: Surface and thermal characterization.

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The aim of this study was to characterize the surface, morphological, and thermal properties of hemp fibers treated with two commercially available, inexpensive, and water soluble sulfonic acid deriva...

Toxic impact of bromide and iodide on drinking water disinfected with chlorine or chloramines.

Environ. Sci. Technol. 48(20) , 12362-9, (2014)

Disinfectants inactivate pathogens in source water; however, they also react with organic matter and bromide/iodide to form disinfection byproducts (DBPs). Although only a few DBP classes have been sy...

Optimization of chemical and instrumental parameters in hydride generation laser-induced breakdown spectrometry for the determination of arsenic, antimony, lead and germanium in aqueous samples.

Anal. Chim. Acta 770 , 7-17, (2013)

A laser induced breakdown spectrometry hyphenated with on-line continuous flow hydride generation sample introduction system, HG-LIBS, has been used for the determination of arsenic, antimony, lead an...

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Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Germanium
Price: Check
Purity: 99.999%
Delivery: 10 Day
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Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: Germanium
Price: ￥178.0/5g
Purity: 98.0%
Delivery: Inquiry
Contact: Liu jia
Email: 2130147988@qq.com

Henan Tianfu Chemical Co., Ltd.
China
Product Name: TIANFU-CHEM CAS NO.7440-56-4 Germanium
Price: $Inquiry/1kg $Inquiry/25kg $Inquiry/1000kg $Inquiry/10ton
Purity: 99.0%
Delivery: Inquiry
Contact: Anson
Email: info@tianfuchem.com

Zhongshan Xingrui Chemical Co. , Ltd.
China
Product Name: Germanium
Price: ￥Inquiry/25kg
Purity: 99.0%
Delivery: Inquiry
Contact: Wang Jie
Email: 3096638339@qq.com

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Germanium

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